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Home >> Land Rover >> 2014 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Electronic Engine Controls - TDV6 3.0L Diesel -- Range Rover/L405) >> Electronic Engine Controls - TDV6 3.0L Diesel >> Electronic Engine Controls (Diagnosis And Testing) >> Diagnosis And Testing >> Symptom Chart

Symptom Chart

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SYMPTOM POSSIBLE CAUSES ACTION
Engine does not crank
  • Starting procedure incorrect
  • Transmission control switch not set to Park or Neutral
  • Security system/immobilizer armed
  • Battery/charging system fault
  • Engine system fault
  • Starting system fault
  • Power distribution fault
  • Transmission control switch system fault
  • Engine seized/hydraulically locked
  • Refer to the owner's handbook and check that the correct starting procedure is being adhered to
  • Set the transmission control switch to Park or Neutral and retest
  • Check that the security system/immobilizer is disarmed
  • Refer to the relevant section of the 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 DTCs and refer to the relevant DTC index
  • Refer to the relevant section of the service information and check the starting system. Rectify as necessary
  • Check the integrity of the battery terminal clamps. Check the fusible links and fuses. Check the wiring harnesses and ground fixings. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control switch for related DTCs and refer to the relevant DTC index
  • Check the engine is not seized or hydraulically locked. Rectify as necessary
Engine cranks but does not start
  • Engine system fault
  • Camshaft position sensor/crankshaft position sensor power circuit short circuit to ground, short circuit to power, open circuit, high resistance
  • Battery/charging system fault
  • Starting system fault
  • Fuel level low
  • Fuel contaminated
  • Air ingress to fuel
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • High pressure fuel pump internal failure
  • Glow plugs system fault
  • Fuel injection pump belt failure
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the appropriate system wiring diagram and check the camshaft position sensor/crankshaft position sensor power circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the relevant section of the service information and check the battery and charging system. Rectify as necessary
  • Refer to the relevant section of the service information and check the starting system. Rectify as necessary
  • Check the fuel level. Rectify as necessary
  • Check the fuel for contamination. Rectify as necessary
  • Check the low pressure fuel system for air ingress (air bubbles may be visible passing through the transparent fuel pipes). Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Check the high pressure fuel pump. Rectify as necessary
  • Refer to the relevant section of the service information and check the glow plugs. Rectify as necessary
  • Check the integrity of the fuel injection pump belt. Rectify as necessary
Engine stops, will crank, but will not start. No DTCs logged in the powertrain control module
  • Camshaft position sensor/crankshaft position sensor power circuit short circuit to ground, short circuit to power, open circuit, high resistance
  • Refer to the appropriate system wiring diagram and check the camshaft position sensor/crankshaft position sensor power circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
Difficult to start
  • Glow plugs system fault
  • Fuel level low
  • Fuel contaminated
  • Intake system leaking or restricted
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • Exhaust gas recirculation system fault
  • Refer to the relevant section of the service information and check the glow plugs. Rectify as necessary
  • Check the fuel level. Rectify as necessary
  • Check the fuel for contamination. Rectify as necessary
  • Check the intake system for leaks and restrictions. Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Refer to the relevant section of the service information and check the exhaust gas recirculation system. Rectify as necessary
Rough idle
  • Intake system leaking or restricted
  • Glow plugs system fault
  • Fuel level low
  • Fuel contaminated
  • Air ingress to fuel
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • Exhaust gas recirculation system fault
  • Check the intake system for leaks and restrictions. Rectify as necessary
  • Refer to the relevant section of the service information and check the glow plugs. Rectify as necessary
  • Check the fuel level. Rectify as necessary
  • Check the fuel for contamination. Rectify as necessary
  • Check the low pressure fuel system for air ingress (air bubbles may be visible passing through the transparent fuel pipes). Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Refer to the relevant section of the service information and check the exhaust gas recirculation system. Rectify as necessary
Lack of power when accelerating
  • Fuel level low
  • Fuel level sensor fault
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • Intake system leaking or restricted
  • Exhaust system restricted
  • Exhaust gas recirculation system fault
  • Turbocharger system fault
  • Check the fuel level. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel level sensors. Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Check the intake system for leaks and restrictions. Rectify as necessary
  • Check the exhaust system for restrictions. Rectify as necessary
  • Refer to the relevant section of the service information and check the exhaust gas recirculation system. Rectify as necessary
  • Refer to the relevant section of the service information and check the turbocharger system. Rectify as necessary
Engine stops/stalls
  • Fuel level low
  • Fuel level sensor fault
  • Fuel contaminated
  • Air ingress to fuel
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • High pressure fuel system leaking
  • Exhaust gas recirculation system fault
  • Check the fuel level. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel level sensors. Rectify as necessary
  • Check the fuel for contamination. Rectify as necessary
  • Check the low pressure fuel system for air ingress (air bubbles may be visible passing through the transparent fuel pipes). Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Check the high pressure fuel system for leaks. Rectify as necessary
  • Refer to the relevant section of the service information and check the exhaust gas recirculation system. Rectify as necessary
Engine judders (shudders)
  • Fuel level low
  • Fuel level sensor fault
  • Fuel contaminated
  • Air ingress to fuel
  • Low pressure fuel system restricted/leaking/damaged
  • Fuel filter restricted/leaking/damaged
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • High pressure fuel system leaking
  • High pressure fuel pump failure
  • Fuel injector failure
  • Check the fuel level. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel level sensors. Rectify as necessary
  • Check the fuel for contamination. Rectify as necessary
  • Check the low pressure fuel system for air ingress (air bubbles may be visible passing through the transparent fuel pipes). Rectify as necessary
  • Check the low pressure fuel system for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel filter for restrictions, leaks and damage. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Check the high pressure fuel system for leaks. Rectify as necessary
  • Check the high pressure fuel pump. Rectify as necessary
  • Check the fuel injectors. Rectify as necessary
Excessive fuel consumption
  • Tire pressures are incorrect
  • Brakes binding
  • Low pressure fuel system leaking
  • High pressure fuel system leaking
  • Fuel volume control valve blocked/contaminated
  • Fuel pressure control valve blocked/contaminated
  • Fuel injector failure
  • Exhaust gas recirculation system fault
  • Intake system leaking or restricted
  • Exhaust system restricted
  • Turbocharger system fault
  • Check the tire pressures. Rectify as necessary
  • Check the brakes for binding. Rectify as necessary
  • Check the low pressure fuel system for leaks. Rectify as necessary
  • Check the high pressure fuel system for leaks. Rectify as necessary
  • Check the fuel volume control valve for blockages and contamination. Rectify as necessary
  • Check the fuel pressure control valve for blockages and contamination. Rectify as necessary
  • Check the fuel injectors. Rectify as necessary
  • Refer to the relevant section of the service information and check the exhaust gas recirculation system. Rectify as necessary
  • Check the intake system for leaks and restrictions. Rectify as necessary
  • Check the exhaust system for restrictions. Rectify as necessary
  • Refer to the relevant section of the service information and check the turbocharger system. Rectify as necessary
OBD II monitor readiness status incomplete
  • The vehicle has not been driven enough for the monitors to complete their cycles
  • Refer to section 'Diesel OBD II Monitors and Readiness Status'