Experiencing a check engine light in your 2008 Land Rover LR2 can be concerning. Fortunately, modern vehicles like the LR2 are equipped with an On-Board Diagnostic (OBD) system, specifically the OBD-II protocol, designed to help identify potential issues. This system triggers trouble codes when it detects a problem, providing valuable information for diagnosis and repair. Understanding the basics of the OBD-II protocol and common trouble codes can empower you to address issues effectively and communicate with automotive professionals.
Understanding the OBD-II Protocol for Your 2008 LR2
The 2008 Land Rover LR2, like most vehicles manufactured in the 21st century, utilizes the OBD-II (On-Board Diagnostics II) protocol. This standardized system was implemented to provide vehicle owners and technicians with a consistent method for diagnosing vehicle problems related to emissions and other systems. The OBD-II system monitors various components and systems within your LR2, from the engine and transmission to emission controls and more. When a malfunction occurs that could affect emissions or vehicle performance, the system illuminates the check engine light and stores a corresponding Diagnostic Trouble Code (DTC).
These DTCs are invaluable because they pinpoint the general area of the problem. By using an OBD-II scanner, you can retrieve these codes and gain a clearer understanding of what might be triggering your check engine light. This knowledge is the first step in effective vehicle maintenance and repair.
Decoding Common OBD-II Codes for Your 2008 LR2
While a professional diagnosis is always recommended, especially for complex issues, understanding common OBD-II codes can give you a head start. Below is a table outlining a range of generic OBD-II codes that your 2008 LR2 might display, along with potential problems associated with each code. Keep in mind that this is not an exhaustive list, and Land Rover specific codes (often starting with “P1”) may require specialized diagnostic tools and expertise.
| Code | Common Problems That Trigger This Code |
|---|---|
| P0010 | Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue |
| P0011 | Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer’s requirements, Variable valve timing actuator failure, Worn timing chain |
| P0012 | Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer’s requirements, Variable valve timing actuator failure, Worn timing chain |
| P0013 | Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue |
| P0014 | Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer’s requirements, Variable valve timing actuator failure, Worn timing chain |
| P0101 | Large vacuum leaks, Split Intake Air Boot or PCV Hose, Defective intake manifold gaskets, Mass Airflow Sensor (MAF), Mass Air Flow Sensor circuit and or wiring problems, Defective Barometric Pressure Sensor, Dirty or contaminated Mass Air Flow Sensing wire or filament, PCM software needs to be updated |
| P0102 | The Mass Airflow Sensor (MAF) Sensor is unplugged or the wiring is damaged, Loose or corroded electrical terminals in the MAF Sensor circuit, Faulty MAF Sensor |
| P0113 | Defective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow Sensor, Faulty or corroded Intake Air Temperature Sensor wiring or connections |
| P0128 | Defective Engine Thermostat, Defective Engine Coolant Temperature Sensor, Defective Intake Air Temperature Sensor, Defective Cooling System, Low Engine Coolant, Dirty Engine Coolant causing incorrect Coolant Temperature Sensor readings, Defective/always running Engine Cooling fan(s) |
| P0135 | Defective Oxygen Sensor/Air Fuel Ratio Sensor, defective Oxygen Sensor/Air Fuel Ratio Sensor Heater Circuit, Exhaust System Leak, Intake Air System leak, Low Fuel Pressure, Defective Engine Coolant Temperature Sensor, Defective sensor wiring and/or circuit problem, PCM software needs to be updated, Defective PCM |
| P0171 | Control module software needs to be updated, Vacuum leaks (intake manifold gaskets, vacuum hoses, PCV hoses, etc.), Mass air flow sensor, Plugged fuel filter or weak fuel pump, Plugged or dirty fuel injectors |
| P0174 | PCM software needs to be updated, Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc.), Faulty Mass Airflow (MAF) Sensor, Plugged Fuel Filter or weak Fuel Pump, Plugged or dirty Fuel Injectors |
| P0200 | Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the Fuel Injector |
| P0201 | Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the Fuel Injector |
| P0202 | Malfunction of the Fuel Injector, Malfunction of the PCM Fuel Injector driver circuit, Defective wiring/connections in the Fuel Injector wiring harness, Defective Fuel Injector power circuit(s) |
| P0203 | Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P0205 | Fuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P0300 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) |
| P0301 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) |
| P0302 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) |
| P0303 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) |
| P0304 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and/or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) |
| P0401 | Restriction in the EGR passages, usually caused by carbon buildup, The EGR Valve is defective, Lack of proper vacuum or electrical signal to the EGR valve, Malfunctioning EGR Vacuum supply solenoid, Lack of proper EGR system feedback to the computer from the: Manifold Absolute Pressure Sensor (MAP), Differential EGR Pressure Feedback Sensor (DPFE), EGR Valve Position Sensor (EVP), EGR Temperature Sensor |
| P0420 | Inefficient Catalytic Converter(s), Defective Front or Rear Oxygen Sensor(s), Misfiring engines |
| P0430 | Defective Catalytic Converter, Internal engine damage resulting in high oil consumption and/or a leaking Head Gasket has damaged the Catalytic Converter |
| P0440 | Missing fuel cap, Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged fuel tank |
| P0441 | Missing fuel cap, Stuck open or closed purge valve, Defective or damaged fuel cap, Distorted, damaged or cracked Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve, Defective or damaged fuel tank |
| P0442 | Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Small tear or puncture in the Evaporative system hose(s) and/or Carbon Canister, Defective Fuel Tank Sending Unit gasket or seal, Small split in a seam of the Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged Fuel Tank, Defective Fuel Tank Pressure Sensor, Defective Leak Detection Pump, Slightly loose and/or worn clamps or hardened O-rings anywhere in the EVAP system |
| P0455 | Missing fuel cap, Defective or damaged fuel cap, Distorted or damaged Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve and/or Evaporative Purge Valve, Defective or damaged fuel tank, Defective Fuel Tank Pressure Sensor |
| P0500 | Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring or connector, Communication (CAN) bus problems, Defective transmission or differential Vehicle Speed Sensor drive gear |
| P0501 | Defective Vehicle Speed Sensor, Defective Speedometer, Vehicle Speed Sensor wiring or connector, Communication (CAN) bus problems, Defective transmission or differential Vehicle Speed Sensor drive gear |
| P0505 | Defective Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages |
| P0506 | Defective/sticking Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages, Defective Power Steering Pressure Switch |
| P0507 | Defective/sticking Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages, Defective Coolant Temperature Sensor, Defective Charging System/Alternator, Defective Power Steering Pressure Switch |
| P0600 | Defective PCM (Power Train Control Module), Defective PCM data bus wiring/connections, Defective PCM data bus ground circuit(s), Defective PCM or other control module controlled output devices, Defective CAN bus communication |
| P0601 | Lack of proper voltage to the PCM, Defective PCM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices |
| P0602 | Powertrain Control Module (PCM) failure, Wiring issue |
| P0603 | Lack of proper voltage to the Keep Alive Memory connection on the PCM, Defective PCM Keep Alive Memory Module (KAM), Defective PCM ground circuit(s), Defective PCM controlled output devices |
| P0605 | Lack of proper voltage and/or ground to the PCM, Defective PCM ROM memory module, Defective PCM ground circuit(s), Defective PCM controlled output devices |
| P0700 | Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages |
| P0705 | Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor (PRNDL input) wiring or connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid that restricts the hydraulic passages |
| P0706 | Defective Transmission Range Sensor (PRNDL input), Defective Transmission Range Sensor (PRNDL input) wiring or connector, Defective Valve Body, Defective manual shift valve linkage, Dirty transmission fluid that restricts the hydraulic passages |
| P0720 | Defective Output Speed Sensor, Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages, Defective Output Speed Sensor wiring or connector |
| P0730 | Defective Shift Solenoids, Defective Engine Coolant Temperature Sensor, Defective Valve Body, Dirty transmission fluid that restricts the hydraulic passages |
| P0841 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue |
| P0842 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue |
| P0845 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue |
| P0846 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission fluid pressure sensor failure, Wiring issue |
| P0847 | Transmission Control Module (TCM) failure, Transmission Control Module (TCM) failure, Transmission fluid pressure sensor failure, Wiring issue |
| P0901 | Clutch master cylinder failure, Clutch solenoid failure, Transmission Control Module (TCM) failure |
| P0935 | Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue |
| P0942 | Hydraulic power unit assembly failure, Transmission Control Module (TCM) failure, Wiring issue |
| P0944 | Clogged transmission filter, Transmission fluid level is low, Transmission oil pump failure, Wiring issue |
| P0961 | Transmission shift solenoid failure |
| P0A08 | Inverter/converter assembly failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P0A0D | High voltage safety device failure, Inverter/converter assembly failure, Power management control module failure, Service disconnect plug is not properly connected, Wiring issue |
| P0A0F | Hybrid transaxle assembly failure, Internal engine failure, Power management control module failure |
| P0A7F | Poor connections at the HV battery, A problem with the HV battery, ECU issues |
| P0A80 | High voltage battery assembly failure |
| P0B22 | Battery contactor assembly failure, Battery Energy Control Module (BECM) failure |
| P0B24 | Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue |
| P0B26 | Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue |
| P0B28 | Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue |
| P0B30 | Battery Energy Control Module (BECM) failure, High voltage battery assembly failure, Wiring issue |
| P0C00 | Drive motor generator power inverter control module failure |
| P0C09 | Drive motor generator assembly failure, Drive motor generator power inverter control module failure |
| P0C11 | Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure |
| P0C14 | Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure |
| P0C15 | Coolant system leak, Drive motor generator power inverter control module failure, Engine cooling fan failure, Water pump failure |
| P2000 | Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration |
| PP2002 | Diesel Particulate Filter (DPF) failure, Intake air leak, Mass Airflow (MAF) sensor is dirty/loss of calibration |
| P2004 | A failed IMRC actuator, A problem with the intake manifold or linkage, Wiring issues |
| P2006 | Intake manifold runner control actuator failure, Powertrain Control Module (PCM) failure, Restricted vacuum lines |
| P2101 | Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue |
| P2122 | Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle control motor failure, Wiring issue |
| P2135 | Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue |
| P2138 | Accelerator Pedal Position (APP) assembly failure, Powertrain Control Module (PCM) failure, Throttle Position Sensor (TPS) failure, Wiring issue |
| P2181 | Engine coolant heater failure, Engine coolant level is too low, Thermostat failure |
| P2210 | NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2213 | NOx sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2237 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2238 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2251 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2302 | Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2303 | Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2305 | Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2308 | Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2310 | Ignition coil failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2401 | Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2402 | Evap leak detection pump failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2422 | EVAP vent valve failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2431 | Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue |
| P2432 | Air control solenoid failure, Powertrain Control Module (PCM) failure, Secondary Air System pressure sensor failure, Wiring issue |
| P2500 | Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2501 | Alternator failure, Battery failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2503 | Alternator failure, Battery failure, Wiring issue |
| P2509 | Powertrain Control Module (PCM) failure, Powertrain Control Module (PCM) power relay failure, Wiring issue |
| P250C | Oil level sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2601 | Coolant Heat Storage (CHS) water pump failure, Coolant Heat Storage (CHS) water pump relay, Powertrain Control Module (PCM) failure, Wiring issue |
| P2607 | Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue |
| P2609 | Intake air heater, Powertrain Control Module (PCM) failure, Wiring issue |
| P2610 | An internal PCM problem, A problem with the PCM power or ground circuit |
| P2614 | Broken tone ring, Camshaft Position Sensor (CMP) failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2706 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue |
| P2711 | Internal transmission failure, Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission solenoid failure, Wiring issue |
| P2714 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue |
| P2716 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue |
| P2723 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission shift solenoid failure, Wiring issue |
| P2803 | Powertrain Control Module (PCM) failure, Transmission Control Module (TCM) failure, Transmission range sensor failure, Wiring issue |
| P2806 | Powertrain Control Module (PCM) failure, Transmission Control Module (TCM) failure, Transmission range sensor failure, Transmission range sensor is out of adjustment, Wiring issue |
| P2809 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue |
| P2810 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue |
| P2815 | Transmission Control Module (TCM) failure, Transmission fluid level is low, Transmission pressure control solenoid failure, Wiring issue |
| P2A00 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2A01 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2A03 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2A04 | Exhaust leak, Oxygen sensor failure, Powertrain Control Module (PCM) failure, Wiring issue |
| P2BA8 | Faulty NOx Sensors, NOx Sensors harness is open or shorted, NOx Sensors circuit poor electrical connection, Fualty Diesel Particulate Filter (DPF) |
| P3000 | Fuel level is too low, High voltage battery assembly failure, High voltage battery is not sufficiently charged |
| P3100 | High voltage powertrain control module failure |
| P3400 | Faulty Cylinder Deactivation System/td> |
| P3401 | Engine oil level is too low, Powertrain Control Module (PCM) failure, Variable valve timing solenoid failure, Wiring issue |
| B0081 | Wiring issues, Control module problems, A problem with the airbag |
| C0040 | A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module |
| U0001 | A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module |
| U0073 | A faulty control module, A problem with the CAN bus |
| U0100 | A faulty PCM, A problem with the control module circuit, A problem with the CAN bus |
| U0107 | A dead battery, A faulty TAC module, A problem with TAC module circuit, A problem with the CAN bus |
| U0121 | A dead battery, A faulty ABS module, A problem with ABS module circuit, A problem with the CAN bus |
Example Code Breakdown: P0171 – System Too Lean (Bank 1)
Let’s take a closer look at code P0171, a common OBD-II code that your 2008 LR2 might display. This code indicates that the engine’s air-fuel mixture is too lean on Bank 1. This means there is too much air and not enough fuel in the mixture. Potential causes for a P0171 code in your LR2 can range from minor issues to more significant problems:
- Vacuum Leaks: Leaks in intake manifold gaskets, vacuum hoses, or PCV hoses can introduce extra air into the system, leaning out the mixture.
- Mass Air Flow (MAF) Sensor Issues: A faulty or dirty MAF sensor might not accurately measure the incoming air, leading to incorrect fuel delivery.
- Fuel Delivery Problems: A plugged fuel filter, weak fuel pump, or dirty fuel injectors can restrict fuel flow, causing a lean condition.
- PCM Software Updates: In some cases, outdated PCM software can cause misinterpretations of sensor readings, leading to a false P0171 code.
While knowing the potential causes is helpful, diagnosing a P0171 (or any OBD-II code) often requires systematic troubleshooting. It’s not simply about replacing parts at random; it’s about pinpointing the root cause.
When to Seek Professional Land Rover Expertise
While OBD-II scanners and code tables provide a starting point, diagnosing and repairing modern vehicles, especially luxury SUVs like the 2008 Land Rover LR2, often necessitates professional expertise.
Codes starting with “P1” are Land Rover-specific, and these, in particular, require specialized diagnostic equipment and knowledge that certified Land Rover technicians possess. Furthermore, even seemingly generic codes can have nuances specific to the Land Rover LR2’s engine management system.
Consider seeking professional service if:
- You are uncomfortable working on your vehicle.
- The code description involves complex systems (transmission, ABS, etc.).
- You encounter “P1” or manufacturer-specific codes.
- You are unsure how to proceed with diagnosis after retrieving the code.
- The check engine light persists after you’ve attempted a repair.
Our team of certified Land Rover technicians at [Your Dealership Name/Carparteu.com] is equipped with the latest diagnostic tools and has in-depth knowledge of Land Rover vehicles, including the 2008 LR2 and its specific OBD-II protocol implementation. We can accurately diagnose the issue, recommend the correct repair, and ensure your Land Rover is running optimally.
Don’t let a check engine light concern you. Contact us today at 866-243-9914 to speak with our knowledgeable service team or schedule a service appointment online for your 2008 Land Rover LR2. We are here to help you keep your Land Rover performing at its best.
