Parameters

The Land Rover LR4 has 108 parameters.

● Confirmed◆ In testing○ Supported× Not supported

Battery

Battery voltage `LR4_BAT_V`Confirmed

Pelican can show this parameter as the starter battery voltage.

Service 22DID F442
Module7E0 → 7E8
Every60 s
Testing for 2010 to 2015

Example reply from a 2016 Land Rover LR4.

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{1000}$
Range: 0 to 65.535 V
Unit: V

0x2A3D = 10813 → $\frac{10813}{1000}$ = 10.813 V

Confirmed for 2016. In testing for 2010 to 2015.

Climate

Ambient air temp `LR4_AMBIENT_TEMP`

Service 22DID F446
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Control

Brake `LR4_BRAKE`

Service 22DID FD2A
Module726
Every1 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 1
Unit: Number

In testing for 2010 to 2016.

Drivetrain

1E6A raw `LR4_1E6A_RAW`

Undecoded transmission DID, neighbour of the gearbox temperature.

Service 22DID 1E6A
Module7E1 → 7E9
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

1E88 raw `LR4_1E88_RAW`

Undecoded rear differential DID. Flat at 0000 on every sample so far; a lock cycle is the test.

Service 22DID 1E88
Module795 → 79D
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2010 to 2016.

1E89 raw `LR4_1E89_RAW`

Undecoded rear differential DID. Flat at 09C4 on every sample so far.

Service 22DID 1E89
Module795 → 79D
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2010 to 2016.

DD01 raw `LR4_DD01_RAW`

Service 22DID DD01
Module7E1 → 7E9
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

Gearbox temp `LR4_GEARBOX_OIL_TEMP`

Pelican can show this parameter as the transmission fluid temperature.

Service 22DID 1E69
Module7E1 → 7E9
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 120 °C
Unit: °C

In testing for 2010 to 2016.

Locking diff oil temp `LR4_REAR_DIFF_TEMP`

Service 22DID 1E8A
Module795
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 150 °C
Unit: °C

In testing for 2010 to 2016.

ECU

2A3A raw `LR4_2A3A_RAW`

Service 22DID 2A3A
Module792 → 79A
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

2A3B raw `LR4_2A3B_RAW`

Service 22DID 2A3B
Module792 → 79A
Every600 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

2A3C raw `LR4_2A3C_RAW`

Service 22DID 2A3C
Module792 → 79A
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

2A32 raw `LR4_2A32_RAW`

A counter, not a constant. Held 404720 across 19 samples taken over a single morning and was written off; nine hours and 111 km later it read 420200. 2A32 through 2A37 all advance. What they count is unknown - 2A32 gained 126 per km, 2A33 4.3, 2A34 8.6, 2A35 19.5, 2A36 0.8, 2A37 0.009 - and pinning it needs several samples within one drive, which is why these now poll at 120s.

Service 22DID 2A32
Module792 → 79A
Every120 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

2A33 raw `LR4_2A33_RAW`

Service 22DID 2A33
Module792 → 79A
Every120 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

2A34 raw `LR4_2A34_RAW`

Service 22DID 2A34
Module792 → 79A
Every120 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

2A35 raw `LR4_2A35_RAW`

Service 22DID 2A35
Module792 → 79A
Every120 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

2A37 raw `LR4_2A37_RAW`

Service 22DID 2A37
Module792 → 79A
Every120 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

2A38 raw `LR4_2A38_RAW`

Service 22DID 2A38
Module792 → 79A
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

2A39 raw `LR4_2A39_RAW`

Service 22DID 2A39
Module792 → 79A
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

197C raw `LR4_197C_RAW`

Undecoded. Nine distinct values in fourteen samples, the most variable unmined DID on the truck.

Service 22DID 197C
Module761 → 769
Every120 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2010 to 2016.

726 0202 raw `LR4_726_0202_RAW`

The only non-identification DID ever found on module 726, from a sweep of 0000-03FF. Has only ever returned 00.

Service 22DID 0202
Module726 → 72E
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

D11C raw `LR4_D11C_RAW`

Undecoded. Ranges 0x3A to 0x41, which would be a plausible temperature.

Service 22DID D11C
Module761 → 769
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Emissions standard raw `LR4_OBD_STANDARD`

SAE J1979 PID 1C, which OBD standard this ECM claims. Supported per the bitmask, never requested. Static.

Service 22DID F41C
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Monitor status raw `LR4_MONITOR_STATUS`

SAE J1979 PID 01: MIL state, stored DTC count and readiness monitors. Listed as supported by the ECM's own bitmask but never once requested. Top byte is the DTC count with the MIL bit; a non-zero value here is the cheapest possible check for a stored fault.

Service 22DID F401
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

Monitor status this cycle raw `LR4_MONITOR_THIS_CYCLE`

SAE J1979 PID 41, readiness monitors for the current drive cycle. Supported per the ECM bitmask, never requested. Changes across a drive as monitors complete, so unlike PID 01 it should not be static.

Service 22DID F441
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

O2 sensors present raw `LR4_O2_SENSORS_PRESENT`

SAE J1979 PID 13, a bitmask of which oxygen sensor positions exist. Answered 0x77 on its one logged sample. Static, but it says exactly which O2 PIDs are worth probing.

Service 22DID F413
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Engine

Absolute load `LR4_LOAD_ABS`

Pelican can show this parameter as the absolute engine load.

Service 22DID F443
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 25700 %
Unit: %

In testing for 2010 to 2016.

Absolute throttle position B `LR4_THROTTLE_B`

Service 22DID F447
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Accelerator pedal D `LR4_PEDAL_D`

Service 22DID F449
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Accelerator pedal E `LR4_PEDAL_E`

Service 22DID F44A
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Barometric pressure `LR4_BARO`

Service 22DID F433
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 kPa
Unit: kPa

In testing for 2010 to 2016.

Calculated load `LR4_LOAD_CALC`

Pelican can show this parameter as the engine load.

Service 22DID F404
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Catalyst temp B1S1 `LR4_CAT_TEMP_B1`

Service 22DID F43C
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{10} - 40$
Range: -40 to 6513.5 °C
Unit: °C

In testing for 2010 to 2016.

Catalyst temp B2S1 `LR4_CAT_TEMP_B2`

Service 22DID F43D
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{10} - 40$
Range: -40 to 6513.5 °C
Unit: °C

In testing for 2010 to 2016.

Charge air temp `LR4_CHARGE_AIR_TEMP`Confirmed

Service 22DID 0520
Module7E0 → 7E8
Every30 s
Testing for 2010 to 2015

Example reply from a 2016 Land Rover LR4.

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

0x49 = 73 → $73 - 40$ = 33 °C

Confirmed for 2016. In testing for 2010 to 2015.

Charge cooler coolant temp `LR4_CAC_COOLANT_TEMP`

The AJ126 runs a separate low-temperature circuit for the supercharger intercooler. Over 135 paired samples this sat 11.7 C above ambient and 24 C below charge air temperature, which is where that circuit belongs. Sensor 1 of the same PID was dropped: it matched the engine coolant PID to 0.0 C.

Service 22DID F467
Module7E0 → 7E8
Every60 s
Testing

Bits 16 to 23 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Commanded throttle `LR4_THROTTLE_CMD`

Service 22DID F44C
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Coolant temp `LR4_COOLANT_TEMP`

Pelican can show this parameter as the engine coolant temperature.

Service 22DID F405
Module7E0 → 7E8
Every15 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Engine speed `LR4_RPM`Confirmed

Pelican can show this parameter as the engine speed.

Service 22DID F40C
Module7E0 → 7E8
Every2 s
Testing for 2010 to 2015

Example reply from a 2016 Land Rover LR4.

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{4}$
Range: 0 to 16383.75 rpm
Unit: rpm

0x0000 = 0 → $\frac{0}{4}$ = 0 rpm

Confirmed for 2016. In testing for 2010 to 2015.

Equivalence ratio `LR4_EQ_RATIO`

Pelican can show this parameter as the commanded lambda.

Service 22DID F444
Module7E0 → 7E8
Every3 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{32768}$
Range: 0 to 1.9999
Unit: Number

In testing for 2010 to 2016.

Intake air temp `LR4_IAT`

Service 22DID F40F
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Intake air temp sensor 1 `LR4_IAT_1`

Pre-supercharger inlet air, measured 9.2 C above ambient over 135 samples.

Service 22DID F468
Module7E0 → 7E8
Every120 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Intake air temp sensor 2 `LR4_IAT_2`

Post-supercharger charge air. Tracks the proprietary charge air temperature DID to within 2.7 C on average, so it is close to redundant with it.

Service 22DID F468
Module7E0 → 7E8
Every120 s
Testing

Bits 16 to 23 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 215 °C
Unit: °C

In testing for 2010 to 2016.

Manifold pressure `LR4_MAP`

Service 22DID F40B
Module7E0 → 7E8
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 kPa
Unit: kPa

In testing for 2010 to 2016.

Manifold pressure, fine `LR4_BOOST_A`

SAE J1979 PID 70 channel A. Over 525 samples it tracks the 1 kPa manifold pressure PID to within 1.3 kPa on average, so it is the same measurement at 1/32 kPa resolution, not a separate pre-throttle sensor. The other three channels the PID defines read a constant zero and have been removed.

Service 22DID F470
Module7E0 → 7E8
Every120 s
Testing

Bits 24 to 39 of the reply, 16 bits.

Formula: $\frac{val}{32}$
Range: 0 to 2047.96875 kPa
Unit: kPa

In testing for 2010 to 2016.

Mass air flow `LR4_MAF`

Pelican can show this parameter as the mass air flow.

Service 22DID F410
Module7E0 → 7E8
Every2 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{100}$
Range: 0 to 655.35 g/s
Unit: g/s

In testing for 2010 to 2016.

Mass air flow A `LR4_MAF_A`

One of two intake tract sensors. Across 1,474 samples A and B sum to 0.88 of the single MAF PID by least squares, but the scatter between individual pairs is large enough that the split between the two is not trustworthy at this polling rate. Use the single MAF PID for anything quantitative.

Service 22DID F466
Module7E0 → 7E8
Every60 s
Testing

Bits 8 to 23 of the reply, 16 bits.

Formula: $\frac{val}{32}$
Range: 0 to 2047.96 g/s
Unit: g/s

In testing for 2010 to 2016.

Mass air flow B `LR4_MAF_B`

One of two intake tract sensors. See Mass Air Flow A.

Service 22DID F466
Module7E0 → 7E8
Every60 s
Testing

Bits 24 to 39 of the reply, 16 bits.

Formula: $\frac{val}{32}$
Range: 0 to 2047.96 g/s
Unit: g/s

In testing for 2010 to 2016.

O2 lambda B1S1 `LR4_O2_LAMBDA`

Pelican can show this parameter as the O2 lambda.

Service 22DID F434
Module7E0 → 7E8
Every15 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{32768}$
Range: 0 to 1.9999
Unit: Number

In testing for 2010 to 2016.

O2 lambda B2S1 `LR4_O2_LAMBDA_B2`

Bank 2 sensor 1. Rails at FFFF on roughly half of samples; treat those as invalid rather than lean.

Service 22DID F438
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $\frac{val}{32768}$
Range: 0 to 1.999
Unit: Number

In testing for 2010 to 2016.

O2 pump current B1S1 `LR4_O2_CURRENT`

The second word of SAE J1979 PID 34 is sensor current, not voltage; the voltage variants are PIDs 24 to 2B, which this ECM does not support. Read as voltage it sat at a meaningless flat 4.0 across 28,432 samples. Read as current it spans -0.95 to +1.36 mA with a mean of +0.16, which is what a wideband pump cell should do.

Service 22DID F434
Module7E0 → 7E8
Every15 s
Testing

Bits 16 to 31 of the reply, 16 bits.

Formula: $\frac{val}{256} - 128$
Range: -128 to 127.996 mA
Unit: mA

In testing for 2010 to 2016.

O2 pump current B2S1 `LR4_O2_CURRENT_B2`

Bank 2 counterpart. See O2 Pump Current B1S1 - PID 38 reports current, not voltage.

Service 22DID F438
Module7E0 → 7E8
Every60 s
Testing

Bits 16 to 31 of the reply, 16 bits.

Formula: $\frac{val}{256} - 128$
Range: -128 to 127.996 mA
Unit: mA

In testing for 2010 to 2016.

O2 voltage B1S2 `LR4_O2_S2_VOLTAGE`

Service 22DID F415
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val}{200}$
Range: 0 to 1.275 V
Unit: V

In testing for 2010 to 2016.

Oil level `LR4_MEASURED_OIL_LEVEL`

Service 22DID 03E6
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 mm
Unit: mm

In testing for 2010 to 2016.

Oil temp `LR4_ENGINE_OIL_TEMP`

Pelican can show this parameter as the engine oil temperature.

Service 22DID 03F3
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val - 40$
Range: -40 to 120 °C
Unit: °C

In testing for 2010 to 2016.

Oil volume `LR4_ENGINE_OIL_VOLUME_GAL`

Service 22DID 03F2
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val \times 0.0264172$
Range: 0 to 6.7363 gal
Unit: gal

In testing for 2010 to 2016.

Relative throttle position `LR4_THROTTLE_REL`

Service 22DID F445
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Run time since engine start `LR4_RUN_TIME`

Service 22DID F41F
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535 s
Unit: s

In testing for 2010 to 2016.

Throttle position `LR4_THROTTLE_POS`

Pelican can show this parameter as the throttle position.

Service 22DID F411
Module7E0 → 7E8
Every10 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Timing advance `LR4_SPARK_ADV`

Service 22DID F40E
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val}{2} - 64$
Range: -64 to 63.5 °
Unit: °

In testing for 2010 to 2016.

Fuel

Commanded evap purge `LR4_EVAP_PURGE`

Service 22DID F42E
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Fuel level `LR4_FUEL_LEVEL`

Pelican can show this parameter as the fuel tank level.

Service 22DID F42F
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{255}$
Range: 0 to 100 %
Unit: %

In testing for 2010 to 2016.

Fuel rail gauge pressure `LR4_FUEL_RAIL_GAUGE_P`

SAE J1979 PID 23, ranging 29 to 197 bar, the right shape for this engine's direct injection rail. It is not the same measurement as the proprietary DID 033E: across 157 paired samples the ratio between them drifts from 0.41 to 0.56 rather than holding constant, and in one stretch this PID sat pinned near 197 bar while 033E climbed from 79 to 110 bar. A fixed scaling error would give a fixed ratio, so these are two different quantities - plausibly a commanded rail target against a measured one. Worth sampling hard under load to separate them.

Service 22DID F423
Module7E0 → 7E8
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val \times 10$
Range: 0 to 655350 kPa
Unit: kPa

In testing for 2010 to 2016.

Fuel rail pressure `LR4_FUEL_RAIL_P`Confirmed

Service 22DID 033E
Module7E0 → 7E8
Every30 s
Testing for 2010 to 2015

Example reply from a 2016 Land Rover LR4.

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 30000 kPa
Unit: kPa

0x0C1E = 3102 → 3,102 kPa

Confirmed for 2016. In testing for 2010 to 2015.

Fuel system status B1 `LR4_FUEL_SYS_B1`

Service 22DID F403
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Unit: Named states

States
Raw value	State	Meaning
`1`	`OpenLoopCold`	Open loop, engine cold
`2`	`ClosedLoop`	Closed loop
`4`	`OpenLoopLoad`	Open loop, load or decel fuel cut
`8`	`OpenLoopFault`	Open loop, system fault
`16`	`ClosedLoopFault`	Closed loop with a feedback fault

In testing for 2010 to 2016.

Fuel system status B2 `LR4_FUEL_SYS_B2`

Bank 2 fuel system status. Has mirrored bank 1 on every sample so far.

Service 22DID F403
Module7E0 → 7E8
Every120 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Fuel type raw `LR4_FUEL_TYPE`

SAE J1979 PID 51. Supported per the ECM bitmask, never requested. Static, one sample settles it.

Service 22DID F451
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Long term fuel trim B1 `LR4_LONGFT1`

Service 22DID F407
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Long term fuel trim B2 `LR4_LONGFT2`

Bank 2. There is no long-term fuel trim metric slot, so this does not surface as a connectable.

Service 22DID F409
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Long term secondary O2 trim B1 `LR4_SEC_O2_TRIM_B1`

Service 22DID F456
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Long term secondary O2 trim B2 `LR4_SEC_O2_TRIM_B2`

SAE J1979 PID 58, the bank 2 counterpart to PID 56. Previously carried as an undecoded raw byte and briefly deleted on the mistaken reading that its single logged reply was a negative response; 62F458 7F is a positive reply meaning -0.78%.

Service 22DID F458
Module7E0 → 7E8
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Short term fuel trim B1 `LR4_SHRTFT1`

Pelican can show this parameter as the short term fuel trim.

Service 22DID F406
Module7E0 → 7E8
Every15 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Short term fuel trim B2 `LR4_SHRTFT2`

Service 22DID F408
Module7E0 → 7E8
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $\frac{val \times 100}{128} - 100$
Range: -100 to 99.2 %
Unit: %

In testing for 2010 to 2016.

Movement

Vehicle speed `LR4_SPEED`

Pelican can show this parameter as the speed.

Service 22DID F40D
Module7E0 → 7E8
Every2 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Vehicle speed `LR4_VSS_726`

Pelican can show this parameter as the speed.

Service 22DID DD09
Module726 → 72E
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Suspension

3B00 raw `LR4_3B00_RAW`

Undecoded. Reads 0x03 in 111 of 113 samples; the exception is 0x103, once, with the truck sitting at Access. Bit 8 looks like a height-event flag, and 3B02 carries a bit-8 flag that behaves the same way.

Service 22DID 3B00
Module7D3 → 7DB
Every120 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Formula: $val$
Range: 0 to 4294967295
Unit: Number

In testing for 2010 to 2016.

3B0B raw `LR4_3B0B_RAW`

Undecoded suspension DID, narrow range around 0x3D5.

Service 22DID 3B0B
Module7D3 → 7DB
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2010 to 2016.

3B02 byte 1 `LR4_3B02_B0`

Service 22DID 3B02
Module7D3 → 7DB
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

3B02 byte 2 `LR4_3B02_B1`

Service 22DID 3B02
Module7D3 → 7DB
Every60 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

3B02 byte 3 `LR4_3B02_B2`

Service 22DID 3B02
Module7D3 → 7DB
Every60 s
Testing

Bits 16 to 23 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

3B02 byte 4 `LR4_3B02_B3`

Service 22DID 3B02
Module7D3 → 7DB
Every60 s
Testing

Bits 24 to 31 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

3B4D raw `LR4_3B4D_RAW`

Terrain Response candidate, and back in contention. It held a constant 0x00 across 236 samples and was written off as dead; the first short drive on which the off-road features were deliberately exercised produced 0x04, 0x01 and 0x00 within eight minutes. It does not track the ride height mode PID, so it is reporting something else. Needs one sample per selectable terrain mode to map.

Service 22DID 3B4D
Module7D3 → 7DB
Every30 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

3B08 raw `LR4_3B08_RAW`

Undecoded. Reads 0x00 in 130 of 131 samples; the exception is 0x01, once, with Off-Road engaged and the truck at its highest. One sample is not a decode, but it is not dead either.

Service 22DID 3B08
Module7D3 → 7DB
Every120 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Compressor activity `LR4_SUSPENSION_COMPRESSOR`

Service 22DID 3B07
Module7D3 → 7DB
Every30 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535
Unit: Number

In testing for 2010 to 2016.

D11A raw `LR4_D11A_RAW`

Was called Suspension Module Voltage and scaled to volts. It is not battery voltage: across 221 paired samples its raw range spans 57 to 105, an 84% swing, while control module voltage moved only 12.51 to 14.75, an 18% swing, and the implied scale scatters by 9%. The old scaling also put it at 16.8 V, which no 12 V system reaches. Best correlation found so far is 0.58 against compressor activity, which is not enough to name it. Undecoded until something fits.

Service 22DID D11A
Module7D3 → 7DB
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Front height sensor, inverted `LR4_RIDE_HEIGHT_FRONT`

Inverted: a falling value means the truck is rising.

Service 22DID 3B71
Module7D3 → 7DB
Every15 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Rear height sensor, inverted `LR4_RIDE_HEIGHT_REAR`

Inverted: a falling value means the truck is rising.

Service 22DID 3B72
Module7D3 → 7DB
Every15 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Ride height mode `LR4_RIDE_HEIGHT`

A bitfield, not an ordinal: bit 0 Normal, bit 1 Off-Road, bit 2 Access. 0x0D is 0x01|0x04|0x08 and has only been seen with the truck part-way between Normal and Access, so bit 3 reads as movement rather than a mode of its own. Bit 3 has never been seen set on its own, which is where a held-Access mode would most likely appear.

Service 22DID 3B3C
Module7D3 → 7DB
Every10 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Unit: Named states

States
Raw value	State
`1`	`Normal`
`2`	`Off-Road`
`4`	`Access`
`13`	`In Transit`

In testing for 2010 to 2016.

Ride height state `LR4_RIDE_HEIGHT_STATE`

Runs in parallel with the ride height mode PID and agrees with it. All three observed bits are measured against the front height sensor: 0x100 at a front reading around 110 (Normal), 0x400 around 85 with the truck at its highest (Off-Road), 0x800 at 133 with it at its lowest (Access). Remember the sensor is inverted. Bit 9 (0x200) sits between Normal and Off-Road and has never been seen in 142 samples; the held-Access mode, where the lower button is held and the truck stays down, is the obvious candidate and has never been captured.

Service 22DID 3B01
Module7D3 → 7DB
Every15 s
Testing

Bits 0 to 31 of the reply, 32 bits.

Unit: Named states

States
Raw value	State
`256`	`Normal`
`1024`	`Off-Road`
`2048`	`Access`

In testing for 2010 to 2016.

Suspension height offset `LR4_SUSPENSION_2B12`

Service 22DID 2B12
Module7D3 → 7DB
Every60 s
Testing

Bits 0 to 15 of the reply, 16 bits. The value is signed.

Formula: $val$
Range: -32768 to 32767 mm
Unit: mm

In testing for 2010 to 2016.

Suspension pressure front left `LR4_SUSPENSION_PRES_FL`

Service 22DID 3B04
Module7D3 → 7DB
Every30 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $\frac{val}{5}$
Range: 0 to 51 psi
Unit: psi

In testing for 2010 to 2016.

Suspension pressure front right `LR4_SUSPENSION_PRES_FR`

Service 22DID 3B03
Module7D3 → 7DB
Every30 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $\frac{val}{5}$
Range: 0 to 51 psi
Unit: psi

In testing for 2010 to 2016.

Suspension pressure rear left `LR4_SUSPENSION_PRES_RL`

Service 22DID 3B06
Module7D3 → 7DB
Every30 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $\frac{val}{5}$
Range: 0 to 51 psi
Unit: psi

In testing for 2010 to 2016.

Suspension pressure rear right `LR4_SUSPENSION_PRES_RR`

Service 22DID 3B05
Module7D3 → 7DB
Every30 s
Testing

Bits 8 to 15 of the reply, 8 bits.

Formula: $\frac{val}{5}$
Range: 0 to 51 psi
Unit: psi

In testing for 2010 to 2016.

Tires

2A36 distance counter `LR4_2A36_RAW`

Service 22DID 2A36
Module792 → 79A
Every120 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215
Unit: Number

In testing for 2010 to 2016.

Front left wheel speed `LR4_FL_WHL_SPD`

Service 22DID 2B06
Module7E6
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Front right wheel speed `LR4_FR_WHL_SPD`

Service 22DID 2B07
Module7E6
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Rear left wheel speed `LR4_RL_WHL_SPD`

Service 22DID 2B08
Module7E6
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Rear right wheel speed `LR4_RR_WHL_SPD`

Service 22DID 2B09
Module7E6
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255 km/h
Unit: km/h

In testing for 2010 to 2016.

Transmission

1E68 raw `LR4_1E68_RAW`

Undecoded transmission DID, neighbour of the gearbox temperature.

Service 22DID 1E68
Module7E1 → 7E9
Every60 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Gear engaged `LR4_GEAR_ENGAGED`

Service 22DID 1E1F
Module7E1
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Gear selector `LR4_GEAR_SELECTOR`Confirmed

Service 22DID D928
Module732
Every10 s
Testing for 2010 to 2015

Example reply from a 2016 Land Rover LR4.

Bits 0 to 7 of the reply, 8 bits.

Unit: Named states

0x00 = 0 → Park

States
Raw value	State
`0`	`Park`
`1`	`Reverse`
`2`	`Neutral`
`3`	`Drive`
`7`	`Sport`

Confirmed for 2016. In testing for 2010 to 2015.

Gear, commanded `LR4_GEAR_CMD`

Service 22DID 1E12
Module7E1
Every250 ms
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Torque converter temperature `LR4_TQ_CONV_T`

Service 22DID 1F12
Module7E1
Every5 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val \times 2 - 40$
Range: -40 to 470 °C
Unit: °C

In testing for 2010 to 2016.

Trips

Distance since codes cleared `LR4_DIST_SINCE_CLR`

Pelican can show this parameter as the distance since trouble codes were cleared.

Service 22DID F431
Module7E0 → 7E8
Every300 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535 km
Unit: km

In testing for 2010 to 2016.

Distance with MIL on `LR4_MIL_DIST`

Service 22DID F421
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 15 of the reply, 16 bits.

Formula: $val$
Range: 0 to 65535 km
Unit: km

In testing for 2010 to 2016.

Odometer `LR4_ODO`

Pelican can show this parameter as the odometer.

Service 22DID DD01
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 23 of the reply, 24 bits.

Formula: $val$
Range: 0 to 16777215 km
Unit: km

In testing for 2010 to 2016.

Warm-ups since codes cleared `LR4_WARMUPS`

Saturated. The PID is a single byte and has been pinned at 255 for as long as it has been logged, so it says only that codes were cleared more than 255 warm-up cycles ago.

Service 22DID F430
Module7E0 → 7E8
Every600 s
Testing

Bits 0 to 7 of the reply, 8 bits.

Formula: $val$
Range: 0 to 255
Unit: Number

In testing for 2010 to 2016.

Parameters

Battery

Battery voltage LR4_BAT_VConfirmed

Climate

Ambient air temp LR4_AMBIENT_TEMP

Control

Brake LR4_BRAKE

Drivetrain

1E6A raw LR4_1E6A_RAW

1E88 raw LR4_1E88_RAW

1E89 raw LR4_1E89_RAW

DD01 raw LR4_DD01_RAW

Gearbox temp LR4_GEARBOX_OIL_TEMP

Locking diff oil temp LR4_REAR_DIFF_TEMP

ECU

2A3A raw LR4_2A3A_RAW

2A3B raw LR4_2A3B_RAW

2A3C raw LR4_2A3C_RAW

2A32 raw LR4_2A32_RAW

2A33 raw LR4_2A33_RAW

2A34 raw LR4_2A34_RAW

2A35 raw LR4_2A35_RAW

2A37 raw LR4_2A37_RAW

2A38 raw LR4_2A38_RAW

2A39 raw LR4_2A39_RAW

197C raw LR4_197C_RAW

726 0202 raw LR4_726_0202_RAW

D11C raw LR4_D11C_RAW

Emissions standard raw LR4_OBD_STANDARD

Monitor status raw LR4_MONITOR_STATUS

Monitor status this cycle raw LR4_MONITOR_THIS_CYCLE

O2 sensors present raw LR4_O2_SENSORS_PRESENT

Engine

Absolute load LR4_LOAD_ABS

Absolute throttle position B LR4_THROTTLE_B

Accelerator pedal D LR4_PEDAL_D

Accelerator pedal E LR4_PEDAL_E

Barometric pressure LR4_BARO

Calculated load LR4_LOAD_CALC

Catalyst temp B1S1 LR4_CAT_TEMP_B1

Catalyst temp B2S1 LR4_CAT_TEMP_B2

Charge air temp LR4_CHARGE_AIR_TEMPConfirmed

Charge cooler coolant temp LR4_CAC_COOLANT_TEMP

Commanded throttle LR4_THROTTLE_CMD

Coolant temp LR4_COOLANT_TEMP

Engine speed LR4_RPMConfirmed

Equivalence ratio LR4_EQ_RATIO

Intake air temp LR4_IAT

Intake air temp sensor 1 LR4_IAT_1

Intake air temp sensor 2 LR4_IAT_2

Manifold pressure LR4_MAP

Manifold pressure, fine LR4_BOOST_A

Mass air flow LR4_MAF

Mass air flow A LR4_MAF_A

Mass air flow B LR4_MAF_B

O2 lambda B1S1 LR4_O2_LAMBDA

O2 lambda B2S1 LR4_O2_LAMBDA_B2

O2 pump current B1S1 LR4_O2_CURRENT

O2 pump current B2S1 LR4_O2_CURRENT_B2

O2 voltage B1S2 LR4_O2_S2_VOLTAGE

Oil level LR4_MEASURED_OIL_LEVEL

Oil temp LR4_ENGINE_OIL_TEMP

Oil volume LR4_ENGINE_OIL_VOLUME_GAL

Relative throttle position LR4_THROTTLE_REL

Run time since engine start LR4_RUN_TIME

Throttle position LR4_THROTTLE_POS

Timing advance LR4_SPARK_ADV

Fuel

Commanded evap purge LR4_EVAP_PURGE

Fuel level LR4_FUEL_LEVEL

Fuel rail gauge pressure LR4_FUEL_RAIL_GAUGE_P

Fuel rail pressure LR4_FUEL_RAIL_PConfirmed

Fuel system status B1 LR4_FUEL_SYS_B1

Fuel system status B2 LR4_FUEL_SYS_B2

Fuel type raw LR4_FUEL_TYPE

Long term fuel trim B1 LR4_LONGFT1

Long term fuel trim B2 LR4_LONGFT2

Long term secondary O2 trim B1 LR4_SEC_O2_TRIM_B1

Long term secondary O2 trim B2 LR4_SEC_O2_TRIM_B2

Short term fuel trim B1 LR4_SHRTFT1

Battery voltage `LR4_BAT_V`Confirmed

Ambient air temp `LR4_AMBIENT_TEMP`

Brake `LR4_BRAKE`

1E6A raw `LR4_1E6A_RAW`

1E88 raw `LR4_1E88_RAW`

1E89 raw `LR4_1E89_RAW`

DD01 raw `LR4_DD01_RAW`

Gearbox temp `LR4_GEARBOX_OIL_TEMP`

Locking diff oil temp `LR4_REAR_DIFF_TEMP`

2A3A raw `LR4_2A3A_RAW`

2A3B raw `LR4_2A3B_RAW`

2A3C raw `LR4_2A3C_RAW`

2A32 raw `LR4_2A32_RAW`

2A33 raw `LR4_2A33_RAW`

2A34 raw `LR4_2A34_RAW`

2A35 raw `LR4_2A35_RAW`

2A37 raw `LR4_2A37_RAW`

2A38 raw `LR4_2A38_RAW`

2A39 raw `LR4_2A39_RAW`

197C raw `LR4_197C_RAW`

726 0202 raw `LR4_726_0202_RAW`

D11C raw `LR4_D11C_RAW`

Emissions standard raw `LR4_OBD_STANDARD`

Monitor status raw `LR4_MONITOR_STATUS`

Monitor status this cycle raw `LR4_MONITOR_THIS_CYCLE`

O2 sensors present raw `LR4_O2_SENSORS_PRESENT`

Absolute load `LR4_LOAD_ABS`

Absolute throttle position B `LR4_THROTTLE_B`

Accelerator pedal D `LR4_PEDAL_D`

Accelerator pedal E `LR4_PEDAL_E`

Barometric pressure `LR4_BARO`

Calculated load `LR4_LOAD_CALC`

Catalyst temp B1S1 `LR4_CAT_TEMP_B1`

Catalyst temp B2S1 `LR4_CAT_TEMP_B2`

Charge air temp `LR4_CHARGE_AIR_TEMP`Confirmed

Charge cooler coolant temp `LR4_CAC_COOLANT_TEMP`

Commanded throttle `LR4_THROTTLE_CMD`

Coolant temp `LR4_COOLANT_TEMP`

Engine speed `LR4_RPM`Confirmed

Equivalence ratio `LR4_EQ_RATIO`

Intake air temp `LR4_IAT`

Intake air temp sensor 1 `LR4_IAT_1`

Intake air temp sensor 2 `LR4_IAT_2`

Manifold pressure `LR4_MAP`

Manifold pressure, fine `LR4_BOOST_A`

Mass air flow `LR4_MAF`

Mass air flow A `LR4_MAF_A`

Mass air flow B `LR4_MAF_B`

O2 lambda B1S1 `LR4_O2_LAMBDA`

O2 lambda B2S1 `LR4_O2_LAMBDA_B2`

O2 pump current B1S1 `LR4_O2_CURRENT`

O2 pump current B2S1 `LR4_O2_CURRENT_B2`

O2 voltage B1S2 `LR4_O2_S2_VOLTAGE`

Oil level `LR4_MEASURED_OIL_LEVEL`

Oil temp `LR4_ENGINE_OIL_TEMP`

Oil volume `LR4_ENGINE_OIL_VOLUME_GAL`

Relative throttle position `LR4_THROTTLE_REL`

Run time since engine start `LR4_RUN_TIME`

Throttle position `LR4_THROTTLE_POS`

Timing advance `LR4_SPARK_ADV`

Commanded evap purge `LR4_EVAP_PURGE`

Fuel level `LR4_FUEL_LEVEL`

Fuel rail gauge pressure `LR4_FUEL_RAIL_GAUGE_P`

Fuel rail pressure `LR4_FUEL_RAIL_P`Confirmed

Fuel system status B1 `LR4_FUEL_SYS_B1`

Fuel system status B2 `LR4_FUEL_SYS_B2`

Fuel type raw `LR4_FUEL_TYPE`

Long term fuel trim B1 `LR4_LONGFT1`

Long term fuel trim B2 `LR4_LONGFT2`

Long term secondary O2 trim B1 `LR4_SEC_O2_TRIM_B1`

Long term secondary O2 trim B2 `LR4_SEC_O2_TRIM_B2`

Short term fuel trim B1 `LR4_SHRTFT1`

Short term fuel trim B2 `LR4_SHRTFT2`

Vehicle speed `LR4_SPEED`

Vehicle speed `LR4_VSS_726`

3B00 raw `LR4_3B00_RAW`

3B0B raw `LR4_3B0B_RAW`

3B02 byte 1 `LR4_3B02_B0`

3B02 byte 2 `LR4_3B02_B1`

3B02 byte 3 `LR4_3B02_B2`