DDM / B3934 52
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Memory functions not working
Mirror Motor Potentiometer, Motion in Reverse Order Detected
Fault symptom
Memory functions not working
On-board diagnosis
Type of diagnosis:
| Each time the door module checks if the electric mirror button is depressed or not. |
Enable criteria:
| When electric mirrors are operated. |
Fault criteria:
| When the electric mirror position potentiometer detects movement in the opposite direction in relation to the engine. |
System reaction to a fault:
| Memory functions not working |
| Manual electric mirror operation working. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
