FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Check the Amplifier Power Supply




Check The Amplifier Power Supply

















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







- The test lamp should light.

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - II

YES - Continue with Check The Amplifier Power Supply.

















- Connect a test lamp to pin 2 of the female connector and a good grounding point.







- The test lamp should light.

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - III

YES - Check the Amplifier Grounding