PSM / B1785 0B
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Memory functions not working
Output is switched off, tries however to activate the engine once each time the ignition is switched on.
Motor Seat Back Circuit, Current Too High
Fault symptom
Memory functions not working
Output is switched off, tries however to activate the engine once each time the ignition is switched on.
On-board diagnosis
Type of diagnosis:
| Continually when the engine is run. |
Enable criteria:
| When seat operation is permitted. |
Fault criteria:
| Current consumption is more than 40A +/- 6A. |
System reaction to a fault:
| Output is switched off, tries however to activate the engine once each time the ignition is switched on. |
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:
| Mechanical check of motor |
Functions in the diagnostic tool related to the fault:
| Motor, Seat Back Rearward |
| (See also description of readings/activations in diagnostic tool) |
