Inspection And Verification
WARNING: This page is about a different car, the 2016 Land Rover LR4, 2015 Land Rover LR4, and 2014 Land Rover LR4. 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.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
VISUAL INSPECTION
MECHANICAL ELECTRICAL - Tire size, condition and installation
- Wheel speed sensor condition and installation
- Steering Angle Sensor Module (SASM) condition and installation
- Yaw rate sensor and accelerometer condition and installation
- Hydraulic control unit (with attached anti-lock brake system control module) condition and installation
- Fuses
- Harnesses and connectors
- Warning indicator operation
- Wheel speed sensors
- Central Junction Box (CJB)
- Hill Descent Control (HDC) switch
- Dynamic Stability Control (DSC) switch
- Brake pedal switch
- Yaw rate sensor and accelerometer
- Steering Angle Sensor Module (SASM)
- Anti-lock Brake System control module (ABS)
- Controller Area Network (CAN) circuits
- 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, check for Diagnostic Trouble Codes (DTCs) and refer to the appropriate Diagnostic Trouble Code (DTC) Index information.