Symptom Chart: Notes

WARNING: This page is about a different car, the 2020 Land Rover Range Rover Velar. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM	POSSIBLE CAUSES	ACTION
The engine does not crank	Battery/charging system fault Engine system fault Transmission fault Transmission control switch not set to Park or Neutral Telematic Control Unit Module (TCU) fault (where fitted)/Controller Area Network (CAN) fault Smart key not present/recognized Starter relay fault Starter motor ground circuit open circuit, high resistance Starter motor solenoid circuit short circuit to ground, open circuit, high resistance Starter motor circuit short circuit to ground, open circuit, high resistance Engine seized	Refer to the relevant service information and check the battery and charging system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index Set the transmission control switch to Park or Neutral and retest When a start request is made, the telematics control module (where fitted) must transmit a secure ID message to the powertrain control module over the CAN bus to authorize cranking. Check the telematics control module for related DTC s and refer to the relevant DTC index. Check the CAN circuit between the telematics control module and the powertrain control module and repair the wiring harness as necessary Check that the smart key is present and recognized Check the operation of the starter relay. Rectify as necessary Refer to the electrical circuit diagrams and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary Refer to the electrical circuit diagrams and check the starter motor solenoid power circuit for short circuit to ground, open circuit, high resistance. Repair the wiring harness or install a new starter motor solenoid as necessary Refer to the electrical circuit diagrams and check the starter motor power circuit for short circuit to ground, open circuit, high resistance. Repair the wiring harness or install a new starter motor as necessary Check that the engine turns freely
Engine cranks but does not start	Positive crankcase ventilation system blocked/leaking Ignition system fault Fuel system fault Engine system fault	Check the integrity of the positive crankcase ventilation system. Rectify as necessary Refer to the relevant service information and check the ignition system. Rectify as necessary Refer to the relevant service information and check the fuel system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine cranks and fires, but will not start	Evaporative emissions system fault Ignition system fault Fuel system fault Engine system fault	Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary Refer to the relevant service information and check the ignition system. Rectify as necessary Refer to the relevant service information and check the fuel system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine difficult to start (cold engine)	Battery/charging system fault Engine system fault Fuel system fault Evaporative emissions system fault	Refer to the relevant service information and check the battery and charging system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the fuel system. Rectify as necessary Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
Engine difficult to start (warm/hot engine)	Injector(s) leaking Engine system fault Evaporative emissions system fault Fuel system fault Ignition system fault	Check the injectors for leaks. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary Refer to the relevant service information and check the fuel system. Rectify as necessary Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)	Injector(s) leaking Engine system fault Evaporative emissions system fault Fuel system fault Ignition system fault	Check the injectors for leaks. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary Refer to the relevant service information and check the fuel system. Rectify as necessary Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine cranks too slowly	Battery/charging system fault Starter motor ground circuit open circuit, high resistance Starter motor power circuit open circuit, high resistance Starter motor internal failure Engine oil grade incorrect	Refer to the relevant service information and check the battery and charging system. Rectify as necessary Refer to the electrical circuit diagrams and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary Refer to the electrical circuit diagrams and check the starter motor power circuit for open circuit, high resistance. Repair the wiring harness as necessary Check the operation of the starter motor. Rectify as necessary Check the engine oil grade. Rectify as necessary
Engine cranks too fast	Timing chain failure Low engine compression	Check the integrity of the timing chain. Rectify as necessary Refer to the relevant service information and test the engine cylinder compressions. Rectify as necessary
Engine stalls soon after start	Positive crankcase ventilation system blocked/leaking Engine system fault Ignition system fault Intake pipe restricted/blocked Air filter element restricted/blocked Intake pipe disconnected/damaged after the air cleaner Fuel system fault	Check the integrity of the positive crankcase ventilation system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the ignition system. Rectify as necessary Check the intake pipe for restrictions and blockages. Rectify as necessary Install a new air filter element as necessary Check the intake system for correct installation and damage. Rectify as necessary Refer to the relevant service information and check the fuel system. Rectify as necessary
Engine stalls on overrun	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine stalls at steady speed	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine stalls with speed control enabled	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine stalls when maneuvering	Engine system fault Excessive additional engine loads (power steering, air conditioning, etc) Transmission fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Check for excessive loads being placed on the engine by the power steering, air conditioning, etc Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index
Engine hesitates/poor acceleration	Fuel system fault Injector(s) leaking Intake pipe disconnected/damaged after the air cleaner Engine system fault Accelerator pedal movement restricted (carpet, mats, etc) Ignition system fault Transmission fault	Refer to the relevant service information and check the fuel system. Rectify as necessary Check the injectors for leaks. Rectify as necessary Check the intake system for correct installation and damage. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Check that the accelerator pedal is free from restriction. Rectify as necessary Refer to the relevant service information and check the ignition system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index
Engine backfires	Fuel system fault Intake pipe disconnected/damaged after the air cleaner Engine system fault Ignition system fault Variable camshaft timing system stuck active	Refer to the relevant service information and check the fuel system. Rectify as necessary Check the intake system for correct installation and damage. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the ignition system. Rectify as necessary Check the operation of the variable camshaft timing system. Rectify as necessary
Engine surges	Fuel system fault Engine system fault Ignition system fault	Refer to the relevant service information and check the fuel system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine detonates/knocks	Engine system fault Fuel system fault Intake pipe disconnected/damaged after the air cleaner Variable camshaft timing system stuck active	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the fuel system. Rectify as necessary Check the intake system for correct installation and damage. Rectify as necessary Check the operation of the variable camshaft timing system. Rectify as necessary
No throttle response	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Speed control inhibited/disabled	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Throttle response poor	Engine system fault Positive crankcase ventilation system blocked/leaking Transmission fault Dynamic stability control event Intake pipe disconnected/damaged after the air cleaner	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Check the integrity of the positive crankcase ventilation system. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index No fault - Accelerator pedal response may be temporarily reduced or inhibited when the dynamic stability control is active Check the intake system for correct installation and damage. Rectify as necessary
Malfunction indicator lamp illuminated or engine warning message displayed	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine misfires	Ignition system fault Fuel system fault Engine sensor faults Air intake system, blockages, deterioration and damage Catalyst/exhaust system blockage Variable camshaft timing system stuck active Low cylinder compressions	NOTE: The misfire detection monitor runs continuously and is designed to detect levels of misfire that can cause thermal damage to the catalyst or result in excessive tailpipe emissions. A full description of misfire monitoring can be found in the service information. Using the Jaguar Land Rover approved diagnostic equipment check the powertrain control module for the following DTC s and complete the corrective actions: P0300 - Random Misfire Detected P0301 - Cylinder 1 Misfire Detected P0302 - Cylinder 2 Misfire Detected P0303 - Cylinder 3 Misfire Detected P0304 - Cylinder 4 Misfire Detected P0305 - Cylinder 5 Misfire Detected P0306 - Cylinder 6 Misfire Detected P0307 - Cylinder 7 Misfire Detected P0308 - Cylinder 8 Misfire Detected P1315 - - Misfire with the potential for Catalyst Damage Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for ignition system related DTC s and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for fuel system related DTC s and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for sensor related DTC s and refer to the relevant DTC index Inspect the air intake system for blockages, deterioration or damage. Rectify as necessary Inspect the Catalyst/exhaust system for blockages, deterioration or damage. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for variable camshaft actuator related DTC s and refer to the relevant DTC index GO to PINPOINT TEST A .