Symptom:
DOOR AND/OR REAR CHANNELS SHORT TO GROUND
When Monitored and Set Condition:
DOOR AND/OR REAR CHANNELS SHORT TO GROUND
When Monitored: When the DRBIIIt performs the Speaker Output Test.
Set Condition: Each Amplifier front door and/or rear channel is shorted together or to
ground.
POSSIBLE CAUSES
AMPLIFIER
LEFT FRONT DOOR SPEAKER
LEFT FRONT DOOR SPEAKER CIRCUITS SHORT TO GROUND
LEFT REAR SPEAKER
LEFT REAR SPEAKER CIRCUITS SHORT TO GROUND
RIGHT FRONT DOOR SPEAKER
RIGHT FRONT DOOR SPEAKER CIRCUITS SHORT TO GROUND
RIGHT REAR SPEAKER
RIGHT REAR SPEAKER CIRCUITS SHORT TO GROUND
TEST ACTION APPLICABILITY
1 NOTE: The fault condition must be present to continue diagnosis. Use the
DRB III to perform the Amplifier Pre-test to verify the fault condition is
present before continuing diagnosis.
Turn the ignition off.
Disconnect the Amplifier C2 harness connector
Measure the resistance between ground and the Right Front Door Speaker (+)
circuit.
Is the resistance above 1000 ohms?
All
Yes → Go To 2
No → Go To 8
2 Turn the ignition off.
Disconnect the Amplifier C2 harness connector
Measure the resistance between ground and the Left Front Door Speaker (+) circuit.
Is the resistance above 1000 ohms?
All
Yes → Go To 3
No → Go To 7
194
AUDIO
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