Jeep Grand Cherokee WK. Manual — part 233
B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH
8A - 68
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH (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 short to battery condition on the output circuit.
Possible Causes
(X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT SHORT TO VOLTAGE
(X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT SHORT TO VOLTAGE
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: B1462-CHANNEL 1 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.
2.
CHECK FOR VOLTAGE ON THE (X209) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT
Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Amplified Left I/P Speaker harness connector.
Turn the ignition on.
Measure for voltage on the (X209) Amplified Left I/P Speaker (+) cir-
cuit.
Is the voltage above 10.0 volts?
Yes
>> Repair the (X209) Amplified Left I/P Speaker (+) circuit for
a short to voltage.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 69
B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH (CONTINUED)
3.
CHECK FOR VOLTAGE ON THE (X299) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT
Measure for voltage on the (X299) Amplified Left I/P Speaker (-) cir-
cuit.
Is the voltage above 10.0 volts?
Yes
>> Repair the (X299) Amplified Left I/P Speaker (-) circuit for
a short to voltage.
Perform BODY VERIFICATION TEST VER-1.
No
>> Replace the Amplifier in accordance with the service infor-
mation.
Perform BODY VERIFICATION TEST VER-1.
8A - 70
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK
B1463-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT OPEN
WK
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
8A - 71
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