9-3 (9440) FaultTrace Mode

Checking the power supply

Connect test lamp 86 11 857 to relay holder pin 30 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?