Chrysler Town, Dodge Caravan. Manual — part 734
Symptom:
ALL OUTPUTS SHORT
When Monitored and Set Condition:
ALL OUTPUTS SHORT
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 ALL OUTPUTS SHORT?
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.
172
AUDIO
TEST
ACTION
APPLICABILITY
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 ALL OUTPUTS SHORT with all the front speakers
disconnected?
All
Yes
→ Go To 3
No
→ Replace the Speaker that when disconnected the DTC did not
reset. Note: On the premium system, check the I/P speaker
circuits between the front door speaker and the I/P speaker for a
short to ground or shorted together condition before replacing
speaker.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
NOTE: Perform this procedure after disconnecting each rear speaker
connector.
Disconnect each rear 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 ALL OUTPUTS SHORT with all the rear speakers
disconnected?
All
Yes
→ Go To 4
No
→ Replace Speaker that when disconnected the DTC did not reset.
Note: On the premium system, check the rear speaker ckts
between the rear door speaker and the rear pillar speaker for a
short to ground or shorted together condition before replacing
speaker.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect each front and rear speaker harness connector.
Disconnect the Radio C1 harness connector.
Measure the resistance between ground and each speaker (+) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the speaker (+) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
173
AUDIO
ALL OUTPUTS SHORT —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect each front and rear speaker harness connector.
Disconnect the Radio C1 harness connector.
Measure the resistance between ground and each speaker (-) circuit.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→ Repair the speaker (-) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 6
6
Turn the ignition off.
Disconnect each front and rear speaker harness connector.
Disconnect the Radio C1 harness connector.
Measure the resistance between each speaker (+) circuit and each speaker (-) circuit.
Is the resistance below 1000.0 (1K) ohms for any of the measurements?
All
Yes
→ Repair the speaker circuits shorted together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 7
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
174
AUDIO
ALL OUTPUTS SHORT —
Continued
Symptom List:
CASSETTE PLAYER INOP
CD MECHANICAL FAILURE
REAR TRANSMITTER FAILURE
*AM/FM SWITCH INOPERATIVE
*ANY STATION PRESET SWITCH INOPERATIVE
*BALANCE INOPERATIVE
*CD EJECT SWITCH INOPERATIVE
*EQUALIZER INOPERATIVE
*FADER INOPERATIVE
*FF/RW SWITCH INOPERATIVE
*HOUR/MINUTE SWITCHES INOPERATIVE
*PAUSE/PLAY SWITCH INOPERATIVE
*PWR SWITCH INOPERATIVE
*SCAN SWITCH INOPERATIVE
*SEEK SWITCH INOPERATIVE
*SET SWITCH INOPERATIVE
*TAPE EJECT SWITCH INOPERATIVE
*TIME SWITCH INOPERATIVE
*TUNE SWITCH INOPERATIVE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be CASSETTE PLAYER INOP.
When Monitored and Set Condition:
CASSETTE PLAYER INOP
When Monitored:
Continuously with the ignition and radio turned on.
Set Condition:
The code will set if the radio detects a internal cassette failure.
CD MECHANICAL FAILURE
When Monitored:
Continuously with the ignition and CD player turned on.
Set Condition:
The code will set if the radio detects a CD mechanical failure.
REAR TRANSMITTER FAILURE
When Monitored:
Continuously with the ignition and radio turned on.
Set Condition:
The code will set if the radio detects a internal rear transmitter failure.
POSSIBLE CAUSES
INTERNAL FAILURE
175
AUDIO
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