Jeep Grand Cherokee WK. Manual — part 222
B1409-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT LOW (CONTINUED)
3.
SPEAKER
Turn the ignition off.
Disconnect the Rear Left Audio Speaker.
Turn the ignition on.
Turn the Radio on.
With the Scan Tool, clear all Audio DTC’s.
With the Scan Tool, read the DTC information.
Does the Scan Tool read: B1409-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT LOW?
Yes
>> Replace the Speaker in accordance with the service information.
Perform the BODY VERIFICATION TEST VER 1.
No
>> Test Complete.
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AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
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B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH (CONTINUED)
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:
•
Set Condition:
Possible Causes
SPEAKER
(X51) SPEAKER OUTPUT CIRCUIT (+)
(X57) SPEAKER OUTPUT CIRCUIT (-)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, read Radio DTCs.
Does the scan tool display active: B140A-REAR LEFT AUDIO
SPEAKER OUTPUT CIRCUIT HIGH?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not
present at this time. Using the wiring diagram/schematic
as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST VER-1.
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AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH (CONTINUED)
2.
CHECK FOR VOLTAGE ON THE (X51) SPEAKER (+) CIRCUIT
Turn the ignition off.
Disconnect the Radio C1 harness connector.
Disconnect the Left Rear Speaker harness connector.
Measure for voltage on the (X51) Speaker (+) circuit.
Is the voltage above 10.0 volts?
Yes
>> Repair the (X51) Speaker (+) circuit for a short to voltage.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
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AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
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