Dodge Ram 2004, Service Manual

Page: 236 / 642

Symptom:
POWER AMP SHUTDOWN - BASE AUDIO SYSTEM
When Monitored and Set Condition:
POWER AMP SHUTDOWN - BASE AUDIO SYSTEM
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.
POSSIBLE CAUSES
DETERMINE FAULT
FRONT SHORTED SPEAKER
REAR SHORTED SPEAKER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
SPEAKER (+) & (-) CIRCUITS SHORTED TOGETHER
SPEAKER SECTION OF RADIO
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Turn the Radio on.
With the DRBIII
t
, erase the audio DTC’s.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t
, read the audio DTC’s.
Does the DRBIII
t
display POWER AMP SHUTDOWN?
All
Yes
→
Go To 2
No
→
Refer to the wiring diagrams located in the service information to
help isolate a possible intermittent short.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
NOTE: Perform this procedure after disconnecting each front speaker
connector.
Disconnect each front speaker harness connector one at a time.
Turn the ignition on.
Turn the radio on.
With the DRBIII
t
, erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII
t
, read DTC’s.
Does the DRBIII
t
display POWER AMP SHUTDOWN with all the speakers
disconnected?
All
Yes
→
Go To 3
No
→
Replace the Speaker that when disconnected the DTC did not
reset.
Perform BODY VERIFICATION TEST - VER 1.
222
AUDIO