PSM / B3918 08
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Seat operation button, faulty function.
Switch Tilt Backward Circuit, Signal Invalid
Fault symptom
Seat operation button, faulty function.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| When seat operation is permitted. |
Fault criteria:
| The "Tilt rear" button is stuck (activated more than 60 s.) or the "Tilt forward" and "Tilt rear" buttons are activated simultaneously. |
System reaction to a fault:
| The button is considered inactive until it is released and activated again. |
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. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
