Inspection And Verification
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.
CAUTION:
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 checked and/or the donor vehicle
NOTE:
- Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests
- Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
- When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into account.
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
- If Diagnostic Trouble Code(s) (DTC) s are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
- 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 complete the recommendations as required.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION
MECHANICAL ELECTRICAL - Engine oil level
- Cooling system coolant level
- Fuel level
- Fuel contamination/grade/quality
- Fuel leaks
- Front end accessory drive belt
- Air filter and induction hoses
- Exhaust system
- Charge air intake system
- Supercharger
- Fuses
- Wiring harnesses and connectors
- Powertrain control module
- Transmission control module
- 5 volt sensor supply
- Crankshaft position sensor
- Accelerator pedal position sensor
- Camshaft Position Sensor (CMP) s
- Engine coolant temperature sensor
- Knock sensors
- Mass air flow and temperature sensor
- Low fuel pressure sensor
- Ambient air temperature sensor
- Radiator outlet temperature sensor
- Fuel rail pressure sensor
- Charge air pressure sensor
- Oil level and temperature sensor
- Heated oxygen sensors
- Ignition coils
- Electric throttle
- Fuel pump module
- Variable camshaft timing actuators
- Purge valve
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes and refer to the DTC Index.
- 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 complete the recommendations as required.