Dodge Dakota (R1). Manual — part 26
TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Disconnect the Clockspring C1 harness connector.
Disconnect the CTM C1 harness connector.
Measure the resistance of the Radio Control MUX circuit between the CTM C1
connector and the Clockspring C1 connector.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the Radio Control MUX circuit for an open between the
clockspring and the CTM.
Perform BODY VERIFICATION TEST - VER 1.
8
If there are no possible causes remaining, view repair.
All
Repair
Replace the Central Timer Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
101
AUDIO
REMOTE RADIO SWITCH CIRCUIT OPEN —
Continued
Symptom:
RIGHT OUTPUT SHORT
When Monitored and Set Condition:
RIGHT OUTPUT SHORT
When Monitored:
Ignition in RUN and IOD fuse installed.
Set Condition:
The radio has sensed a short on the right output for more than 10 seconds.
POSSIBLE CAUSES
DETERMINE FAULT
SPEAKER SECTION OF AMPLIFIER
(+) 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 RIGHT OUTPUT SHORT?
All
Yes
→
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.
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 RIGHT OUTPUT SHORT?
All
Yes
→
No
→
Replace the Amplifier.
Perform BODY VERIFICATION TEST - VER 1.
102
AUDIO
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio C2 harness connector.
Measure the resistance between ground and each right speaker (+) circuit in the
Radio C2 connector.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→
Repair the right speaker (+) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
4
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio C1 and C2 harness connectors.
Measure the resistance between ground and each right speaker (-) circuit in the
Radio C1 and C2 connectors.
Is the resistance below 1000.0 (1K) ohms?
All
Yes
→
Repair the right speaker (-) circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
5
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio C1 and C2 harness connectors.
Measure the resistance between each right speaker (+) circuit and each right speaker
(-) circuit in the radio C1 and C2 connectors.
Is the resistance below 1000.0 (1K) ohms for any of the measurements?
All
Yes
→
Repair the right speaker circuits shorted together.
Perform BODY VERIFICATION TEST - VER 1.
No
→
6
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radio.
Perform BODY VERIFICATION TEST - VER 1.
103
AUDIO
RIGHT OUTPUT SHORT —
Continued
Symptom:
*REMOTE RADIO SWITCHES INOPERATIVE (IF EQUIPPED)
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE RADIO
CHECK OPERATION OF SWITCHES
LEFT REMOTE RADIO SWITCH SHORTED TO GROUND
RIGHT REMOTE RADIO SWITCH SHORTED TO GROUND
RADIO CONTROL MUX CIRCUIT SHORTED TO GROUND AT THE SWITCH
RADIO CONTROL MUX CIRCUIT SHORTED TO THE GROUND CIRCUIT AT THE SWITCH
CLOCKSPRING SHORTED TO GROUND
RADIO CONTROL MUX CIRCUIT SHORTED TO GROUND
CENTRAL TIMER MODULE - INTERNAL SHORT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
NOTE: Check the CTM for DTCs. If any DTCs are present, perform those
symptoms first before continuing.
With the DRB, attempt to communicate with the Radio.
Was the DRB able to communicate with the Radio?
All
Yes
→
No
→
Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition on.
Turn the Radio on.
Operate all the remote radio switch functions.
Is only one function or one switch not operating properly?
All
Yes
→
Repair the ground circuit or the radio control MUX circuit for an
open between the inoperative switch and the clockspring. If OK,
replace the remote radio switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→
104
AUDIO
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