3. Disconnect plug connection X 12 (passenger's side).
4. Switch on the ignition.
5. Voltmeter at plug II, pin 9 and ground.
Display: 0 Volts
6. Voltmeter at plug II, pin 3 and ground.
Display: 0 Volts
7. Switch off the ignition.
8. Ohmmeter at plug connection X 11, pin 19 and pin 20 (sleeve side).
Display: 5 - 7 ohms @ 20 锟斤拷C
9. Ohmmeter at plug connection X 12, pin 19 and pin 20 (sleeve side).
Display: 5 - 7 ohms @ 20 锟斤拷C
Test Point 1
TEST POINT 1
Outside Sensor On Right Does Not Function
Fault Code 1
This fault is stored in the following cases:
1. Open circuit in the supply lead to the outside sensor on right.
2. Short to B+ in the supply lead to the outside sensor on right.
3. Short to ground in the supply lead to the outside sensor on right.
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.
Test Point 2
TEST POINT 2
Inside Sensor On Right Does Not Function
Fault Code 2
This fault is stored in the following cases:
1. Open circuit in the supply lead to the inside sensor on right.
2. Short to B+ in the supply lead to the inside sensor on right.
3. Short to ground in the supply lead to the inside sensor on right.
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.