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SRM / B1345 04

Read the instructions below then start the fault diagnostic procedure.

Symptom: Sunroof cannot be operated.

  B1345 04


Power Ground Missing

Fault symptom

Sunroof cannot be operated.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

When differential voltage between control module ground and logic ground is more than 2V (+/- 1V).

System reaction to a fault:

Sunroof out of order.

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:

Fault on ground lead between control module and REC.

Functions in the diagnostic tool related to the fault:

Test value:
Battery Voltage