Symptom:
LEFTAND/OR RIGHT FRONT I/PAND DOOR CHANNEL SHORT TO
GROUND
When Monitored and Set Condition:
LEFT AND/OR RIGHT FRONT I/P AND DOOR CHANNEL SHORT TO GROUND
When Monitored: When the DRBIIIt performs the Speaker Output Test.
Set Condition: Each Amplifier left and/or right I/P and front door channel is shorted
together or to ground.
POSSIBLE CAUSES
AMPLIFIER
CENTER I/P SPEAKER
LEFT FRONT DOOR SPEAKER
LEFT FRONT DOOR SPEAKER CIRCUITS SHORT TO GROUND
LEFT I/P SPEAKER (+) CIRCUIT SHORT TO GROUND
LEFT I/P SPEAKER (-) CIRCUIT SHORT TO GROUND
LEFT I/P SPEAKER SHORT TO GROUND
RIGHT FRONT DOOR SPEAKER
RIGHT FRONT DOOR SPEAKER CIRCUITS SHORT TO GROUND
RIGHT I/P SPEAKER (+) CIRCUIT SHORT TO GROUND
RIGHT I/P SPEAKER (-) CIRCUIT SHORT TO GROUND
RIGHT I/P SPEAKER 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 11
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 10
203
AUDIO
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