9-3 (9400) FaultTrace Mode

Check the wiring harness between the main unit and the CD changer

Measure the resistance. The reading obtained should be infinity.

9 Main unit, Audio system

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.

Is the function correct?