9-5 (9600) FaultTrace Mode

Checking the power supply

Turn the ignition switch to the ON position.

Unplug the connector:

Solenoid valve, heat exchanger 581

Connect test lamp 86 11 857 to pin 1 of the female connector and a good grounding point.

• 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.

The test lamp should light.

Is the function correct?

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