- #ECU DIAGNOSTIC TROUBLE.CODES DRIVER#
- #ECU DIAGNOSTIC TROUBLE.CODES SOFTWARE#
- #ECU DIAGNOSTIC TROUBLE.CODES CODE#
- #ECU DIAGNOSTIC TROUBLE.CODES FREE#
Freeze frame/environmental data, DTC status mask (pendingDTC/confirmedDTC/.), counter (aging/debouncing), time of first occurence, etc. Along with the DTC additional information will be stored, i.e. The DTCs are stored as their respective byte representation in Non-volatile memory (NvM) of the ECU, so that it can be retrieved even if the ECU has been power cycled.
P0A01 (Range/Performance) would be represented as bytes: 0x0A 0x01Ĭ0001 (TCS Control Channel A Valve 1) would be represented as bytes: 0x40 0x01
P0001 (Fuel Volume Regulator Control Circuit/Open) would be represented as bytes: 0x00 0x01 The first letter being either: P for Powertrain ( 00b, highest bits on highest byte), C for Chassis ( 01b), B for Body ( 10b) or U for Network related DTCs ( 11b). P0001) with the optional low-byte appended as hexadecimal value (ie.
#ECU DIAGNOSTIC TROUBLE.CODES CODE#
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.DTC codes are usually defined as 2-byte or 3-byte values.Ī common representation following ISO 15031-6/ SAE J2012 is as five-character alphanumeric code (ie. 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)
#ECU DIAGNOSTIC TROUBLE.CODES DRIVER#
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)įuel injector failure, Powertrain Control Module (PCM) failure, Wiring issue
#ECU DIAGNOSTIC TROUBLE.CODES SOFTWARE#
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 Injectorsĭefective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and/or connections, Plugged Fuel Injector, Dirt in the Fuel Injector 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 Sensorĭefective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow Sensor, Faulty or corroded Intake Air Temperature Sensor wiring or connectionsĭefective 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)ĭefective 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 PCMĬontrol 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
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 Clearing Trouble Codes After service, the diagnostic trouble code or DTC’s retained in the ECU memory must be cleared by remove the EFI fuse for approximately 10 seconds or more, depending on ambient temperature (the lower the temperature, the longer the fuse must be left out) with the ignition switch off.
Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issueĬamshaft 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
#ECU DIAGNOSTIC TROUBLE.CODES FREE#
If you have access to an OBD-II scanner, feel free to search our database so you can get a better idea what might be wrong with your vehicle. Is your Land Rover check engine light on? When your Land Rover has a problem, its On-Board Diagnostic (OBD) system will trigger a code so a technician can better identify the issue.