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DSM / B3919 04

Read the instructions below then start the fault diagnostic procedure.

Symptom: Memory functions not working

  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+ -0.7V.

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)