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Home >> Land Rover >> 2019 >> Range Rover Sport HST >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Electronic Engine Controls - TDV6 3.0L Diesel/TDV6 3.0L Diesel Gen 1.5/TDV6 3.0L Diesel - Gen 2 -- Range Rover Sport/L494) >> Electronic Engine Controls - TDV6 3.0L Diesel/TDV6 3.0L Diesel - Gen 1.5/TDV6 3.0L Diesel - Gen 2 (G1509550) >> Diagnosis And Testing >> Electronic Engine Controls - TDV6 3.0L Diesel/TDV6 3.0L Diesel - Gen 1.5/TDV6 3.0L Diesel - Gen 2 (G2167132) >> Inspection And Verification

Inspection And Verification

WARNING: This page is about a different variant/trim than selected.
WARNING:
  • Wait at least 30 seconds after the engine stops before commencing any repair to the high-pressure fuel injection system. Failure to follow this instruction may result in personal injury.
  • Place the vehicle in a well ventilated, quarantined, area and arrange "No Smoking/Fuel Fumes" signs about the vehicle. Failure to follow this instruction may result in personal injury.
  • Before any work is carried out on the fuel system, ground the vehicle to earth and maintain the ground connection until the work is complete. Failure to follow this instruction may result in personal injury.
  • Do not carry out any repairs to the fuel injection system with the engine running. The fuel pressure within the system can be as high as 2000 bar. Failure to follow this instruction may result in personal injury.
  • Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable vapours are always present and may ignite. Failure to follow these instructions may result in personal injury.
  • If taken internally do not induce vomiting, seek immediate medical attention. Failure to follow these instructions may result in personal injury.
  • If fuel contacts the eyes, flush the eyes with cold water or eyewash solution and seek medical attention. Failure to follow this instruction may result in personal injury.
  • Wash hands thoroughly after handling fuel, as prolonged contact may cause irritation. Should irritation develop, seek medical attention. Failure to follow this instruction may result in personal injury.
  • This procedure involves fuel handling. Be prepared for fuel spillage at all times and always observe fuel handling precautions. Failure to follow these instructions may result in personal injury.
CAUTION:
  • Diesel fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is therefore essential that absolute cleanliness is observed when working with these components. Always fit blanking plugs to any open orifices or lines.
  • Always carry out the cleaning process before carrying out any repairs to the fuel injection system components. Failure to follow these instructions may result in foreign matter ingress to the fuel injection system.
  • Do not disconnect an injector wiring connector when the engine is running. The fuel injectors are operated by piezo elements controlled by an electrical signal, they can latch open if disconnected when the engine is running. Failure to observe this caution may result in severe engine damage.
  • The low pressure fuel system bleeding procedure must be carried out before this procedure is carried out, or the engine is attempted to be started, following removal or replacement of any low pressure fuel system component. Failure to follow this instruction may result in damage to the fuel injection pump.
  • Diagnosis by substitution from a donor vehicle is NOT  acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTE:
  • If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures information, or determine if any prior approval programme is in operation, prior to the installation of a new module/component.
  • When performing voltage or resistance tests, always use a digital multimeter that has the resolution ability to view 3 decimal places. For example, on the 2 volts range can measure 1 mV or 2 kΩ range can measure 1 Ω. When testing resistance always take the resistance of the digital multimeter leads into account.
  • Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
  1. Verify the customer concern
  2. Visually inspect for obvious signs of damage and system integrity

    Visual Inspection 

    MECHANICAL ELECTRICAL
    • Engine oil level
    • Coolant level
    • Fuel level
    • Fuel contamination/grade/quality
    • Fuel leaks
    • Air ingress into fuel system
    • Fuel filter
    • Accessory drive belt
    • Air filter and induction hoses
    • Boost air circuit and intercooler
    • Exhaust system including oxidation catalyst and particulate filter
    • Primary turbocharger vane control linkage
    • Fuses
    • Wiring harnesses and connectors
    • Powertrain control module
    • Sensor(s)
    • Actuator(s)
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
  4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index
  5. Check JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint and carry out the recommendations as required.
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