9-3 (9440) FaultTrace Mode

Checking the lead to the A/C compressor

Connect a jumper between relay pins 30 and 87.

Connect test lamp 86 11 857 across:

Compressor, A/C

• Pin B

• 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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