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Range Rover ownership guide

Range Rover Fault Codes List and Diagnostic Guide

Search commonly reported P, C and U codes, understand where B codes fit, and see what the scan result proves before anyone recommends a part.

By AftabPublished Updated 20 minute read
Technician reviewing a Range Rover fault-code scan in a Dubai workshop
4 code familiesPowertrain, body, chassis and network
Keep the suffixThe characters after the dash can change the fault type
One code is not one partThe test result must support the repair

The short answer

A Range Rover fault code is a record of what a control module detected, not a verdict on which part failed. Read the complete code, its suffix, the module that stored it, its status and the conditions recorded at the time. Then test the circuit, signal or mechanical system named by the code.

A five-character DTC such as P0299 or U0121 narrows the search. A JLR-aware scan may add a two-character suffix such as -64 or -87. That extra detail can separate a plausibility fault from low voltage, an open circuit or a missing message. Searching only the first five characters can remove the most useful part of the result.

The dashboard warning and the stored code are related, but they answer different questions. If you need to decide whether a red or amber message is safe to drive with, use the Range Rover warning lights guide. This page owns the fault-code lookup and interpretation task.

What this index covers

Every main DTC family, the code structure, scan status, module context and a broad quick-reference list of commonly searched generic and Range Rover-relevant codes. Each row also gives a sensible first testing direction.

Why no static page can list every JLR code

There are thousands of generic and manufacturer-defined codes across model years, engines, transmissions, body systems and software levels. Some descriptions change with the recording module or suffix. An honest lookup must use the exact vehicle and full scan report.

Code families

What P B C and U identify

The first letter identifies the broad diagnostic family. It does not tell you which control module recorded the fault or whether the fault is active now.

P

Powertrain

Engine, transmission, emissions and hybrid powertrain monitoring. Generic OBD readers concentrate heavily on this family.

B

Body

Restraints, access, seats, climate, lighting and other cabin or body functions. Manufacturer data and the module name matter.

C

Chassis

Brakes, stability control, steering, suspension and wheel-speed information. Keep any suffix shown by the scan tool.

U

Network

Lost communication, invalid data and control-module results. The module reporting the U code is often the receiver, not the cause.

Read the complete result

How to decode a Range Rover fault code

The SAE J2012 framework defines standard DTC formats and descriptions. Modern manufacturer diagnostics extend that framework. Ownership cannot be decoded reliably from one digit in every case because allocations have evolved, so confirm the description against the exact vehicle application.

Infographic explaining Range Rover P B C and U fault code anatomy and suffixes
The full code, module and suffix form one diagnostic record.

The first letter

Identifies the broad P, B, C or U family.

The next four characters

Identify the assigned condition. Some are standardised and others depend on the manufacturer.

The suffix

Where supplied, it refines the failure type. Keep it exactly as shown, including the dash.

The recording module

Tells you which control unit made the decision. The same code reported by another module can change the test path.

Useful powertrain code ranges

P00 to P02Fuel, air, temperature, throttle, boost and injector control
P03Misfire, crank, cam, ignition and combustion monitoring
P04Emissions, EGR, catalyst, evaporative and fan control
P05 to P06Speed, idle, voltage, module and output control
P07 to P09Transmission sensing, ratios, pressure and solenoids
P0A and beyondHybrid, electrified powertrain and extended diagnostic groups

Searchable reference

Range Rover fault code index

Search by code, system, description or testing direction. This practical index is not a substitute for the exact JLR diagnostic database for the vehicle.

CodeUsual moduleWhat it identifiesFirst testing direction
BxxxxBody, restraint, climate or access moduleA body-system condition whose wording is often manufacturer and module specificUse the complete code, suffix and module. Do not use a generic B-code list to approve airbag or restraint work.
P0001Engine controlFuel volume regulator control circuit openCheck the regulator circuit, connector, power supply and command before condemning the pump.
P0002Engine controlFuel volume regulator control range or performanceCompare commanded and actual rail pressure, then test supply, return and regulator response.
P0003Engine controlFuel volume regulator control circuit lowTest circuit voltage, resistance to ground and the regulator current draw.
P0004Engine controlFuel volume regulator control circuit highInspect for an open circuit, poor terminal contact or an incorrect high signal.
P0010Engine controlA camshaft position actuator circuit on bank 1Check oil condition, actuator supply, wiring and commanded cam timing.
P0011Engine controlA camshaft timing over-advanced or system performance on bank 1Compare desired and actual timing, then check oil pressure, VVT control and mechanical timing.
P0012Engine controlA camshaft timing over-retarded on bank 1Check oil level and quality, VVT operation, sensor data and timing alignment.
P0013Engine controlB camshaft position actuator circuit on bank 1Test the actuator circuit and verify that exhaust cam timing follows the command.
P0014Engine controlB camshaft timing over-advanced or system performance on bank 1Check oil control, VVT response and mechanical timing evidence.
P0016Engine controlCrankshaft and camshaft correlation on bank 1 sensor APreserve startup data, verify oil pressure and sensor signals, then check timing correlation.
P0017Engine controlCrankshaft and camshaft correlation on bank 1 sensor BCompare crank and exhaust cam signals before considering a sensor or timing repair.
P0018Engine controlCrankshaft and camshaft correlation on bank 2 sensor ACheck bank 2 cam response, sensor circuits, oil control and mechanical timing.
P0019Engine controlCrankshaft and camshaft correlation on bank 2 sensor BUse scope or scan correlation data to separate signal, VVT and mechanical causes.
P0087Engine controlFuel rail or system pressure too lowCompare low-side supply and rail pressure under load, then check restriction, leakage and control.
P0088Engine controlFuel rail or system pressure too highCheck the pressure sensor, regulator command, return path and actual pressure with approved equipment.
P0089Engine controlFuel pressure regulator performanceGraph requested and measured fuel pressure through the condition that sets the code.
P0100Engine controlMass or volume air flow circuitInspect the intake path and circuit, then compare airflow with engine speed and load.
P0101Engine controlMass or volume air flow range or performanceLook for intake leaks, contamination and implausible airflow rather than replacing the sensor first.
P0102Engine controlMass or volume air flow circuit lowCheck power, ground, signal voltage and connector condition.
P0103Engine controlMass or volume air flow circuit highTest for a short to voltage, open ground or an implausible sensor output.
P0111Engine controlIntake air temperature range or performanceCompare intake temperature with ambient and other temperature sensors after a cold soak.
P0112Engine controlIntake air temperature circuit lowCheck for a short to ground and inspect the shared sensor circuit where applicable.
P0113Engine controlIntake air temperature circuit highCheck for an open circuit, disconnected sensor or excessive resistance.
P0116Engine controlEngine coolant temperature range or performanceCompare cold-start temperature data and the warm-up curve with actual engine temperature.
P0117Engine controlEngine coolant temperature circuit lowTest the signal for a short to ground and inspect the connector for coolant ingress.
P0118Engine controlEngine coolant temperature circuit highCheck for an open signal or ground and compare scan data with a known temperature.
P0120Engine controlThrottle or pedal position sensor A circuitCompare both redundant tracks and inspect supply, ground and connector integrity.
P0121Engine controlThrottle or pedal position sensor A range or performanceGraph pedal and throttle tracks for agreement, dropouts and learned position.
P0122Engine controlThrottle or pedal position sensor A circuit lowTest reference voltage, ground and signal before replacing the throttle body or pedal.
P0123Engine controlThrottle or pedal position sensor A circuit highCheck for an open ground, short to voltage or damaged terminals.
P0128Engine controlCoolant temperature below thermostat regulating temperatureVerify the warm-up curve, thermostat operation, coolant level and sensor accuracy.
P0130Engine controlOxygen sensor circuit on bank 1 sensor 1Check exhaust leaks, heater operation, wiring and response before replacing the sensor.
P0133Engine controlOxygen sensor slow response on bank 1 sensor 1Review sensor switching or wideband response with fuel trims and exhaust integrity.
P0135Engine controlOxygen sensor heater circuit on bank 1 sensor 1Test heater supply, ground control and resistance with the correct specification.
P0171Engine controlSystem too lean on bank 1Use fuel trims to test intake leaks, airflow measurement, fuel delivery and exhaust leaks.
P0172Engine controlSystem too rich on bank 1Check fuel pressure, injector leakage, purge flow and biased sensor data.
P0174Engine controlSystem too lean on bank 2Compare both banks to separate a shared cause from a bank-specific leak or sensor issue.
P0175Engine controlSystem too rich on bank 2Compare trims, oxygen data, injection and air measurement on both banks.
P0191Engine controlFuel rail pressure sensor range or performanceCompare desired, sensor-reported and independently verified pressure across load changes.
P0192Engine controlFuel rail pressure sensor circuit lowCheck reference voltage, signal short to ground and terminal tension.
P0193Engine controlFuel rail pressure sensor circuit highCheck for an open ground, short to voltage or implausible pressure signal.
P0201 to P0208Engine controlInjector circuit for cylinders 1 to 8Use the final digit to identify the cylinder, then test injector command, wiring and current before replacement.
P0217Engine controlEngine over-temperature conditionStop if overheating is active, then pressure-test the cooling system and verify circulation and fan control.
P0234Engine controlTurbocharger or supercharger overboost conditionInspect boost control, actuator movement, pressure data and intake restrictions.
P0299Engine controlTurbocharger or supercharger underboost conditionSmoke-test the charge path and test actuator, vacuum or electronic control before condemning the turbo.
P0300Engine controlRandom or multiple-cylinder misfire detectedUse counters and freeze-frame data to separate ignition, fuel, air, compression and timing causes.
P0301 to P0308Engine controlMisfire detected on cylinders 1 to 8The final digit identifies the cylinder. Compare ignition, injection, air and compression evidence for that cylinder.
P0325Engine controlKnock sensor 1 circuitInspect the sensor circuit and mounting, then rule out abnormal mechanical noise.
P0335Engine controlCrankshaft position sensor A circuitCheck sensor power or resistance as applicable, wiring, air gap and signal during cranking.
P0336Engine controlCrankshaft position sensor A range or performanceCompare crank signal quality, engine speed and cam correlation during the fault.
P0340Engine controlCamshaft position sensor A circuit on bank 1Test the complete sensor circuit and compare the signal with crank position.
P0341Engine controlCamshaft position sensor A range or performance on bank 1Check timing plausibility, VVT response and sensor waveform.
P0401Engine controlExhaust gas recirculation flow insufficientCheck commanded flow, valve movement, pressure feedback and blocked passages.
P0402Engine controlExhaust gas recirculation flow excessiveCheck for a valve held open, control fault or biased feedback signal.
P0403Engine controlExhaust gas recirculation control circuitTest power, ground, control and connector condition at the EGR actuator.
P0420Engine controlCatalyst efficiency below threshold on bank 1Check misfire, fuel control, exhaust leaks and sensor response before catalyst replacement.
P0430Engine controlCatalyst efficiency below threshold on bank 2Compare both banks and rule out mixture or exhaust faults before catalyst replacement.
P0440Engine controlEvaporative emission control system faultInspect the cap or sealing point, purge and vent operation, hoses and leak-test results.
P0441Engine controlEvaporative purge flow incorrectTest purge valve sealing and command, hose routing and tank pressure response.
P0442Engine controlEvaporative system small leak detectedUse a controlled smoke or pressure test and inspect seals, hoses and valves.
P0443Engine controlEvaporative purge control valve circuitCheck electrical supply, command, resistance and terminal condition.
P0455Engine controlEvaporative system large leak detectedCheck for an open cap or line, disconnected hose and a vent valve that does not seal.
P0456Engine controlEvaporative system very small leak detectedLeak-test the system at low pressure and inspect fine cracks and sealing surfaces.
P0480Engine controlCooling fan 1 control circuitCommand the fan, test relay or module control, power, ground and motor current.
P0481Engine controlCooling fan 2 control circuitCheck fan-stage command, power distribution, control and motor operation.
P0500Engine or ABS dataVehicle speed sensor faultIdentify the recording module, then compare all wheel speeds and network speed messages.
P0506Engine controlIdle speed lower than expectedCheck throttle airflow, deposits, load calculation, intake restriction and adaptation.
P0507Engine controlIdle speed higher than expectedCheck unmetered air, throttle adaptation, purge flow and commanded idle.
P0560Power supplySystem voltage faultTest battery state, charging voltage, grounds and the voltage seen by the recording module.
P0562Power supplySystem voltage lowLoad-test the 12V battery and check charging recovery, cables and voltage drop.
P0563Power supplySystem voltage highVerify charging regulation and module supply voltage before further diagnosis.
P0600Engine controlSerial communication link faultRun a vehicle-wide scan and check network integrity, module power and grounds.
P0606Engine controlControl module processor performanceConfirm stable power and ground, software applicability and repeatability before module replacement.
P062BEngine controlInternal fuel injector control performanceCheck voltage, injector circuits and calibration evidence before treating it as an internal module fault.
P0700Transmission controlTransmission control system requested the warning lampRead the transmission module because P0700 does not identify the underlying gearbox fault.
P0705Transmission controlTransmission range sensor A circuitCompare selected gear, lever position, wiring and range-sensor adjustment.
P0715Transmission controlInput or turbine speed sensor A circuitCheck sensor signal, connector condition and speed plausibility against engine and output speed.
P0720Transmission controlOutput speed sensor circuitCompare output speed with wheel and gear data, then test the sensor circuit.
P0730Transmission controlIncorrect gear ratioReview the gear and slip data, fluid condition, pressure control and mechanical evidence.
P0731 to P0736Transmission controlIncorrect ratio for gears 1 to 5 or reverseThe final digit identifies the gear. Confirm command, input and output speed, pressure and mechanical evidence.
P0741Transmission controlTorque converter clutch performance or stuck offGraph commanded lock-up and slip, then check fluid, pressure control and converter evidence.
P0751Transmission controlShift solenoid A performance or stuck offTest solenoid command, hydraulic response, fluid condition and related circuit faults.
P0756Transmission controlShift solenoid B performance or stuck offTest solenoid command, hydraulic response, fluid condition and related circuit faults.
P0761Transmission controlShift solenoid C performance or stuck offTest solenoid command, hydraulic response, fluid condition and related circuit faults.
P0868Transmission controlTransmission fluid pressure lowVerify fluid level and condition, commanded pressure, leakage and pump or valve-body evidence.
P0882Transmission controlTransmission control module power input lowTest 12V supply under load, fuses, relays, grounds and voltage drop.
P0A0FHybrid controlEngine failed to start when requested by the hybrid systemRead engine and hybrid modules together, then check start authorization, fuel, air and crank data.
P0A80Hybrid battery controlHybrid battery pack deterioration threshold reachedUse high-voltage trained testing and verify block data, temperature and isolation information.
P0AA6Hybrid battery controlHybrid battery voltage system isolation faultDo not open high-voltage components without the correct training and isolation procedure.
P2002Diesel engine controlDiesel particulate filter efficiency below threshold on bank 1Check soot and ash estimates, pressure data, temperature sensors and upstream engine faults.
P2004Engine controlIntake manifold runner control stuck open on bank 1Command the runner, inspect linkage and actuator feedback, then check deposits or restriction.
P2006Engine controlIntake manifold runner control stuck closed on bank 1Check command, position feedback, linkage and manifold contamination.
P2031Diesel engine controlExhaust gas temperature sensor circuit on bank 1 sensor 2Compare cold values, inspect the circuit and verify temperature response during operation.
P2200Diesel engine controlNOx sensor circuit on bank 1Check power, communication, exhaust leaks and aftertreatment conditions before replacing the sensor.
P2263Engine controlTurbocharger or supercharger system performanceCompare boost request and response, then test leaks, actuator control and exhaust restriction.
P2452Diesel engine controlDiesel particulate filter pressure sensor A circuitCheck hoses, sensor supply, signal and key-on pressure plausibility.
P2453Diesel engine controlDiesel particulate filter pressure sensor A range or performanceCompare pressure with engine off and under load, then inspect hoses for blockage or damage.
P2463Diesel engine controlDiesel particulate filter soot accumulationFind why regeneration did not complete and verify pressure, temperature and engine condition.
P2563Engine controlTurbo boost control position sensor A range or performanceCompare actuator command and feedback through a sweep and inspect linkage and wiring.
C0031ABS or stability controlLeft-front wheel-speed sensor fault familyKeep the complete suffix and compare wheel-speed data, sensor circuit and encoder condition.
C0034ABS or stability controlRight-front wheel-speed sensor fault familyKeep the complete suffix and compare wheel-speed data, sensor circuit and encoder condition.
C0037ABS or stability controlLeft-rear wheel-speed sensor fault familyKeep the complete suffix and compare wheel-speed data, sensor circuit and encoder condition.
C003AABS or stability controlRight-rear wheel-speed sensor fault familyKeep the complete suffix and compare wheel-speed data, sensor circuit and encoder condition.
C0051ABS or steering controlSteering-wheel position sensor fault familyConfirm the suffix, mechanical centre, live angle data and calibration status.
C1A13Air suspension controlAir pressure does not decrease as expected while ventingCheck the suffix, exhaust valve path, dryer or silencer restriction and pressure-sensor plausibility.
C1A20Air suspension controlAir pressure rises too slowly while fillingMeasure rise time, find leaks and restrictions, and test compressor output before replacement.
U0001Vehicle networkHigh-speed CAN communication bus faultMap the affected network, check resistance and voltage, then identify modules that are offline.
U0073Vehicle networkControl-module communication bus A offPreserve the full scan, then check network power, grounds and bus integrity.
U0100Vehicle networkLost communication with the engine control moduleCheck whether the engine module is reachable and verify its power, grounds and CAN circuits.
U0101Vehicle networkLost communication with the transmission control moduleCheck TCM power and ground, network activity and whether other modules also lost it.
U0121Vehicle networkLost communication with the ABS control moduleCheck ABS module supply and ground, network wiring and the time relationship with other codes.
U0131Vehicle networkLost communication with the power-steering control moduleCheck module supply, grounds, network branch and related voltage events.
U0140Vehicle networkLost communication with the body control moduleUse the vehicle-wide scan to identify which network segment and functions are affected.
U0155Vehicle networkLost communication with the instrument clusterCheck cluster power, ground and network before considering cluster replacement.
U0164Vehicle networkLost communication with the HVAC control moduleConfirm module availability, fuses, supply and the correct network branch.
U0184Vehicle networkLost communication with the audio unitCheck whether the unit is asleep, unpowered or offline on its network.
U0401Vehicle networkInvalid data received from the engine control moduleRead both the receiving and sending modules, then verify the source data rather than the receiver first.
U0402Vehicle networkInvalid data received from the transmission control moduleCompare TCM codes and data with the modules that rejected the message.
U0415Vehicle networkInvalid data received from the ABS control moduleCheck ABS sensor inputs, voltage and its own DTCs before replacing another module.
U0422Vehicle networkInvalid data received from the body control moduleIdentify the rejected signal and test the body module inputs that create it.
U0428Vehicle networkInvalid data received from the steering-angle sensor moduleCheck steering centre, calibration, live angle data and voltage history.
U3000Control moduleControl-module fault familyThe two-digit suffix is essential. Check power, ground, internal status and software applicability.
U3003Control moduleBattery-voltage fault familyKeep the suffix and test voltage at the recording module during start, charging and sleep transitions.
Important scope note A matching row gives you a testing direction, not a repair instruction. Confirm the code definition against the VIN, model year, engine, market, recording module and software level before parts are ordered.

Do not lose the timeline

Pending current stored historic and permanent codes

Scan tools do not always use the same labels. Save the status exactly as displayed and treat it as evidence about when the monitoring logic passed or failed, not as a universal measure of severity.

Pending

A monitor has detected a possible emissions-related fault, but the criteria for a confirmed code may not yet be complete.

Current or active

The module reports that the fault condition is present now or was present during the latest test.

Stored or confirmed

The relevant setting criteria were met and the record remains in memory. It may no longer be active.

Historic or intermittent

The tool or module indicates a past event. The occurrence count and event data can still be valuable.

Permanent

Where supported, an emissions DTC retained until the OBD monitor verifies the fault is resolved. It is not manually erased.

Permanent DTC behaviour is documented by the California Bureau of Automotive Repair OBD reference. Market and vehicle support vary, so do not assume every Dubai-spec Range Rover uses the same status set.

Evidence boundaries

What a fault code confirms and what it cannot prove

What it can confirm

  • Which module recorded the result
  • Which monitored condition crossed its threshold
  • The assigned code and failure type
  • Status, occurrence and event data when available
Technician connecting a diagnostic interface to a Range Rover OBD port
A scan is the start of diagnosis. Saving the complete report protects the evidence.

What it cannot prove by itself

  • The named part has failed
  • The fault is still active
  • The code is the first cause in a multi-module stack
  • The correct repair or its cost

UAE operating context

How Dubai heat traffic and parking affect the evidence

Dubai conditions do not change the definition of a fault code. They can change when the monitored condition appears. Heat soak after parking, long idle periods with high AC load, dust exposure and a weak 12V battery can reveal marginal components or connections.

That is why the timestamp and operating snapshot matter. A code that sets only after a hot restart needs a different reproduction plan from one that appears on the first cold start. A large U-code stack after a slow crank may point first to voltage stability, while the same codes with stable voltage can justify network testing.

Heat soak

Record coolant, intake and ambient temperatures, restart delay and whether the fault clears after cooling.

Heavy AC load

Note idle quality, fan operation, charging voltage and whether the code sets only in slow traffic.

Dust exposure

Inspect filters, airflow paths, connectors and moving suspension or cooling components where the code directs.

Long parking

Measure battery state, crank voltage and sleep-current evidence before blaming multiple modules.

Diagnosis before replacement

A practical test order after the scan

Save the whole report

Keep every module, code, suffix, status, mileage, event record and warning message before clearing anything.

Confirm vehicle identity

Match the VIN, model year, engine, transmission, market and installed software to the code definition.

Prioritise the first cause

Separate source codes from the secondary messages that other modules logged in response.

Test power and communication

Check battery support, loaded voltage, grounds and network availability when several modules are involved.

Test the named condition

Use live data, pressure, smoke, waveform, circuit or mechanical checks appropriate to the code.

Verify the repair

Repeat the operating condition, confirm monitor completion where applicable and run a final vehicle-wide scan.

Technician testing Range Rover module power and ground circuits with a multimeter
Power, ground and signal checks turn a code description into repair evidence.

Need help with a scan

Send the scan report model and year

Include the full code, suffix, recording module, dashboard message and symptom. If the evidence is incomplete, book a diagnostic inspection before approving parts.

For a vehicle-wide test rather than a code lookup, see the Range Rover diagnostic inspection.

Direct answers

Range Rover fault code FAQs

Can I drive with a Range Rover fault code?

The code alone cannot answer that. Stop for a red warning, overheating, low oil pressure, brake loss, severe misfire, smoke, burning smell, steering difficulty or a major suspension drop. If the vehicle feels normal and the warning is amber, record the message and arrange diagnosis without unnecessary delay.

Does a fault code tell me which part to replace?

No. A code identifies the condition a control module detected. The cause may be the named component, but it may also be wiring, power supply, a leak, a mechanical fault, calibration, software or data from another module.

What do P, B, C and U codes mean?

P points to powertrain-related diagnostics, B to body systems, C to chassis systems and U to network or communication results. The module name and full code remain essential because modern vehicles share information across systems.

What does the suffix after a Range Rover code mean?

A suffix such as -64 or -87 can describe the failure type or subfault. It may distinguish a plausibility result from low voltage, an open circuit or a missing message. Do not remove it when searching or sending a scan report.

What is the difference between pending and stored codes?

A pending emissions code usually means a monitor detected a possible fault that has not yet met the criteria for a confirmed code. Stored or confirmed means the relevant criteria were met. Scanner wording differs, so current status and module context should be saved with the code.

Will disconnecting the battery clear fault codes?

It may clear or disturb some stored information, adaptations and evidence, but it will not repair the cause. A permanent emissions DTC, where supported, cannot be erased manually and clears only after the OBD system verifies the fault is resolved.

Why do several modules show codes at the same time?

A shared low-voltage event, missing CAN message or failed source signal can be reported by many modules. The useful task is to find the first cause and the recording timeline, not to treat every code as a separate failed component.

What should I send with a Range Rover scan report?

Send the full code including suffix, the module name, status, freeze-frame or event data, model, year, engine, mileage, dashboard message and the symptom that occurred. A clear photo of the entire scan screen is better than a cropped code number.

Technical basis and review notes
  • SAE J2012 diagnostic trouble code format and standard descriptions
  • California Bureau of Automotive Repair guidance for permanent DTC behaviour where supported
  • Vehicle-specific definitions remain dependent on the VIN, control module, suffix, market and software level
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