Jeep Grand Cherokee WK. Manual — part 235
B1464-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER (CONTINUED)
3.
CHECK THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT, AND THE (X299) AMPLIFIED LEFT I/P
SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Measure the resistance between the (X209) Amplified Left I/P Speaker
(+) circuit, and the (X299) Amplified Left I/P Speaker (-) circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X209) Amplified Left I/P Speaker (+) circuit,
and the (X299) Amplified Left I/P Speaker (-) circuit 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 - 76
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B1465-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
This DTC will set if a DC offset occurs on the output channel, the amplifier shall set a DTC after a matu-
rity rate of 5 ±1 sec.
Possible Causes
AMPLIFIER
Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1465-CHANNEL 2 AUDIO
SPEAKER OUTPUT CIRCUIT PERFORMANCE?
Yes
>> Replace the Amplifier in accordance with the service infor-
mation.
Perform BODY VERIFICATION TEST VER-1.
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.
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 77
B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW
8A - 78
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW (CONTINUED)
For the Amplifier circuit diagram (Refer to 8 - ELECTRICAL/AUDIO - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Amplifier detects a shorted to ground condition on the speaker output circuit.
Possible Causes
(X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT SHORTED TO GROUND
(X298) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT SHORTED TO GROUND
RIGHT FRONT I/P SPEAKER
AMPLIFIER
Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1466-CHANNEL 2 AUDIO
SPEAKER OUTPUT CIRCUIT LOW?
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.
2.
CHECK THE (X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
Disconnect the Amplifier C2 harness connector.
Measure the resistance between ground and the (X208) Amplified
Right Front I/P Speaker (+) circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X208) Amplified Right Front I/P Speaker (+)
circuit for a short to ground.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 79
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