PSM / B3920 01
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Memory functions not working
No memory functions work
Group 1 Motor Output Circuit, Short to B+
Fault symptom
Memory functions not working
No memory functions work
On-board diagnosis
Type of diagnosis:
| Continually when the engine is run. |
Enable criteria:
| When seat operation is permitted. |
Fault criteria:
| When voltage on output exceeds 12V. |
System reaction to a fault:
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.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
| To find electrical faults in the internal electronics of the seat. |
