B3919 04

B3919 04

Tilt Motor Output Circuit, Open







Fault symptom
- Memory functions not working

On-board diagnosis

Type of diagnosis:
- Continually when the engine is run.

Enable criteria:
- When seat operation is permitted.

Fault criteria:

Motor, Tilt Rearward
- Voltage on the control module output is below 6 V.

Motor, Tilt Forward
- Voltage on the control module output is below B+ -0.7 V.

System reaction to a fault:
- No memory functions work
- 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:
- Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Activate:
- Motor, Tilt Rearward
- Motor, Tilt Forward
(See also description of readings/activations in diagnostic tool)