Jeep Grand Cherokee WK. Manual - part 217
B1401-FRONT LEFT AUDIO SPEAKER OUTPUT CIRCUIT LOW (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:
•
With the Radio on.
•
Set Condition:
•
When the Output circuit is LOW for more than 3 seconds.
Possible Causes
SPEAKER
(X55) (X53) LEFT FRONT SPEAKER OUTPUT CIRCUIT
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all Audio DTC’s.
Turn the Radio on.
With the Scan Tool, read the DTC information.
Does the Scan Tool read: B1401-FRONT LEFT AUDIO SPEAKER
OUTPUT CIRCUIT LOW?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not
present. Inspect the related wiring for a possible intermit-
tent condition. Look for any chafed, pierced, pinched, or
partially broken wires.
Perform the BODY VERIFICATION TEST VER 1.
2.
(X53) (X55) SPEAKER OUTPUT CIRCUITS.
Turn the ignition off.
Disconnect the Radio C1 harness connector.
Disconnect the Front Left Audio Speaker connector.
Measure the resistance between ground and each speaker (X53)(+) and (X55)(-) circuit.
Is the resistance below 1000.0 ohms for each circuit?
Yes
>> Repair the applicable Speaker (+) or (-) Output circuit for a short to ground condition.
No
>> Go To 3
8A - 4
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK