Chrysler Pacifica. Manual — part 80
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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.
POSSIBLE CAUSES
DETERMINE FAULT
SPEAKER SECTION OF AMPLIFIER
(+) CIRCUIT SHORTED TO GROUND
(-) CIRCUIT SHORTED TO GROUND
RADIO (+) & (-) 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 short.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
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?
All
Yes
→ Go To 3
No
→ Replace the Amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
317
AUDIO
![](/vehicles/ged/ing/kee/twst.png)
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio (C1 on premium) harness connector.
Measure the resistance between ground and each radio right and left (+) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the radio right or left (+) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio (C1 on premium) harness connector.
Measure the resistance between ground and each radio right and left (-) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the radio right or left (-) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio (C1 on premium) harness connector.
Measure the resistance between each radio (+) circuit and each radio (-) circuit.
Is the resistance below 1000.0 (1K) ohms for any of the measurements?
All
Yes
→ Repair the radio circuits shorted together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 6
6
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
318
AUDIO
POWER AMP SHUTDOWN —
Continued
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Symptom:
RADIO MESSAGES NOT RECEIVED - AMPLIFIER
When Monitored and Set Condition:
RADIO MESSAGES NOT RECEIVED - AMPLIFIER
When Monitored:
With the ignition on.
Set Condition:
The module does not receive any messages from the radio.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE RADIO
AMPLIFIER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
Turn the Radio on.
With the DRB, attempt to communicate with the Radio.
Was the DRB able to I/D or communicate with the Radio?
All
Yes
→ Go To 2
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the Amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
319
AUDIO
![](/vehicles/ged/ing/kee/gllon.png)
Symptom:
REMOTE RADIO SWITCH OPEN
When Monitored and Set Condition:
REMOTE RADIO SWITCH OPEN
When Monitored:
With the ignition on.
Set Condition:
The radio control MUX voltage at the BCM is greater than 4.8 volts for at
least 10 seconds.
POSSIBLE CAUSES
OPEN RADIO CONTROL MUX CIRCUIT AT THE SWITCH
OPEN RADIO CONTROL MUX RETURN CIRCUIT AT THE SWITCH
REMOTE RADIO SWITCH
BODY CONTROL MODULE - INTERNAL SHORT
OPEN CLOCKSPRING
OPEN RADIO CONTROL MUX CIRCUIT
OPEN RADIO CONTROL MUX RETURN CIRCUIT
BODY CONTROL MODULE - OPEN INTERNAL
TEST
ACTION
APPLICABILITY
1
Turn the ignition and radio on.
Operate both remote radio switches.
Are both remote radio control switches inoperative?
All
Yes
→ Go To 2
No
→ Go To 7
2
Turn the ignition off.
Disconnect the Clockspring C2 harness connector.
Turn the ignition on.
With the DRB, enter Body Computer then Sensors and monitor the Radio Control SW
voltage.
Is the voltage approximately 5.0 volts?
All
Yes
→ Go To 3
No
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
320
AUDIO
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