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AUDIO
Symptom:
POWER AMP SHUTDOWN
When Monitored and Set Condition:
POWER AMP SHUTDOWN
When Monitored: Ignition in RUN and IOD fuse installed.
Set Condition: The radio has sensed a short on the output for more than 10 seconds.
DETERMINE FAULT
SPEAKER SECTION OF AMPLIFIER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
RADIO (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST
1
Turn the ignition on.
Turn the Radio on.
With the DRBIII , erase the audio DTC's.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII , read the audio DTC's.
Does the DRBIII display POWER AMP SHUTDOWN?
Yes → Go To 2
→ Refer to the wiring diagrams located in the service information to
No
2
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Turn the ignition on.
Turn the radio on.
With the DRBIII , erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII , read DTC's.
Does the DRBIII display POWER AMP SHUTDOWN?
Yes → Go To 3
→ Replace the Amplifier in accordance with the service information.
No
POSSIBLE CAUSES
ACTION
help isolate a possible short.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
282
APPLICABILITY
All
All
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