Dodge Ram Truck 1500-2500-3500. Manual — part 257
RIGHT FRONT I/P AND RIGHT REAR CHANNELS SHORT ACROSS (CONTINUED)
2.
RIGHT FRONT I/P AND RIGHT REAR SPEAKER CIRCUITS SHORTED
Turn the ignition off.
Access and disconnect the Right Front I/P Speaker harness connector.
Access and disconnect the Right Rear Speaker harness connector.
Access and disconnect the Amplifier C2 harness connector.
Measure the resistance of the Right Front I/P Speaker (+) and (-) cir-
cuits.
Measure the resistance of the Right Rear Speaker (+) and (-) circuits.
Is the resistance below 5.0 ohms on each measurement?
Yes
>> Repair both Speaker (+) and (-) circuits for a short
together.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Amplifier in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
8A - 30
AUDIO - ELECTRICAL DIAGNOSTICS
DR/DH
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORT ACROSS
For the Audio system circuit diagram (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
When the DRBIII
T
performs the Speaker Output test.
•
Set Condition:
When the Right I/P Speaker and both Rear Speaker circuits are simultaneously shorted.
Possible Causes
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORTED ACROSS
RIGHT I/P SPEAKER AND BOTH REAR SPEAKER CIRCUITS SHORTED
AMPLIFIER
1.
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORTED ACROSS
NOTE: NOTE: The fault condition must be present to continue
diagnosis. Use the DRBIII
T
to perform the Amplifier pretest to ver-
ify the fault condition is present before continuing diagnosis.
NOTE: NOTE: Amplifier speaker circuits are all shorted simulta-
neously.
Turn the ignition off.
Access and disconnect the Right I/P Speaker and both Rear Speaker
harness connectors.
Turn the ignition on.
With the DRBIII
T
, perform the Amplifier pretest.
Is the fault condition still present?
Yes
>> Go To 2
No
>> Replace the Right I/P Speaker and both Rear Speakers in
accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
DR/DH
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 31
RIGHT I/P SPEAKER AND BOTH REAR CHANNELS SHORT ACROSS (CONTINUED)
2.
RIGHT I/P SPEAKER AND BOTH REAR SPEAKER CIRCUITS SHORTED
Turn the ignition off.
Access and disconnect the Right I/P Speaker harness connector.
Access and disconnect both Rear Speaker harness connectors.
Access and disconnect the Amplifier C2 harness connector.
Measure the resistance of the Right I/P Speaker (+) and (-) circuits.
Measure the resistance of both Rear Speaker (+) and (-) circuits.
Is the resistance below 5.0 ohms on each measurement?
Yes
>> Repair all Speaker (+) and (-) circuits for a short together.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Amplifier in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
8A - 32
AUDIO - ELECTRICAL DIAGNOSTICS
DR/DH
RIGHT FRONT DOOR AND LEFT REAR CHANNELS SHORT ACROSS
For the Audio system circuit diagram (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
When the DRBIII
T
performs the Speaker Output test.
•
Set Condition:
When the Right Front Door Speaker and Left Rear Speaker circuits are simultaneously shorted.
Possible Causes
RIGHT FRONT DOOR AND LEFT REAR CHANNELS SHORTED ACROSS
RIGHT FRONT DOOR AND LEFT REAR SPEAKER CIRCUITS SHORTED
RIGHT FRONT DOOR SPEAKER AND LEFT REAR SPEAKER
AMPLIFIER
1.
RIGHT FRONT DOOR AND LEFT REAR CHANNELS SHORTED ACROSS
NOTE: NOTE: The fault condition must be present to continue
diagnosis. Use the DRBIII
T
to perform the Amplifier pretest to ver-
ify the fault condition is present before continuing diagnosis.
NOTE: NOTE: Amplifier speaker circuits are both shorted simul-
taneously.
Turn the ignition off.
Access and disconnect the Right Front Door and Left Rear Speaker
harness connectors.
Turn the ignition on.
With the DRBIII
T
, perform the Amplifier pretest.
Is the fault condition still present?
Yes
>> Go To 2
No
>> Replace the Right Front Door and Left Rear Speakers in
accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
DR/DH
AUDIO - ELECTRICAL DIAGNOSTICS
8A - 33
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