Land Rover Discovery: Parking Aid Proximity Camera / Diagnosis and Testing

PRINCIPLES OF OPERATION

For a detailed description of the rear view camera system, refer to the relevant Description and Operation section of the workshop manual.

INSPECTION AND VERIFICATION

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 tested and/or the donor vehicle.

NOTES:

• If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual, 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 accurate to three decimal places, and with an up-todate calibration certificate. 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

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 DDW 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

SYMPTOM CHART

SYMPTOM:

Rear view camera image slow to react

POSSIBLE CAUSE:

• System operation within specification

ACTION:

NOTE:

After selecting reverse, it may take up to 20 seconds for the image to be displayed.

• No further action necessary

SYMPTOM:

Blank screen

POSSIBLE CAUSE:

• Touch screen fault (where fitted)
• Audio head unit (where fitted) fault
• Rear view camera not functioning

ACTION:

• Using the manufacturer approved diagnostic system, check the touch screen for related DTCs and refer to the relevant DTC index
• Using the manufacturer approved diagnostic system, check the audio head unit for related DTCs and refer to the relevant DTC index
• GO to Pinpoint Test A.

SYMPTOM:

Blue screen

POSSIBLE CAUSE:

• Video in signal absent

ACTION:

• GO to Pinpoint Test B.

SYMPTOM:

No tracking lines

POSSIBLE CAUSE:

• Missing/invalid reverse gear signal
• LIN fault

ACTION:

• Using the manufacturer approved diagnostic system, check the central junction box for related DTCs and refer to the relevant DTC index
• GO to Pinpoint Test C.

SYMPTOM:

Frozen tracking lines

POSSIBLE CAUSE:

• LIN data gateway fault

ACTION:

• GO to Pinpoint Test D.

PINPOINT TESTS

NOTE:

A blank screen is the default display when the rear view camera is not transmitting an image.

CAUTION:

Do not probe the coaxial cable connectors as they are prone to damage.

NOTE:

A DC resistance measurement is not a reliable test method as the system operates at low voltage and high frequency.

NOTE:

A blue screen is the default display when the video in signal is absent.

NOTE:

The vehicle may take 30 seconds (or 100m) to learn the steering centre position after starting the engine. This is normal.

DTC INDEX

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Section 100-00.

REFER to: Diagnostic Trouble Code Index - DTC: Rear View Camera (RVC) (100-00 General Information, Description and Operation) / Diagnostic Trouble Code Index - DTC: Audio Head Unit (AHU) (100-00 General Information, Description and Operation) / Diagnostic Trouble Code Index - DTC: Touch Screen (TS) (100-00 General Information, Description and Operation).

Parking aid specifications

General Specification

Parking Aid / Diagnosis and TestingWarning Devices

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