Test Point 3

TEST POINT 3
Inside Sensor On Left Does Not Function

Fault Code 3
This fault is stored in the following cases:
1. Open circuit in the supply lead to the inside sensor on left.
2. Short to B+ in the supply lead to the inside sensor on left.
3. Short to ground in the supply lead to the inside sensor on left.

Elimination:

- Delete fault memory, disengage reverse gear and switch off ignition. Then switch on ignition, engage reverse gear again and read out fault memory.

- If the fault reappears, check plug on sensor for open circuit.

- If there is no open circuit, check for continuity with an ohmmeter from sensor connector pin 1 to pin 4 and pin 1 to pin 2. Continuity should not be measured.

- If no short circuit can be detected, replace sensor.