Jeep Grand Cherokee WK. Manual - part 238
B1469-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER (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. Radio volume at 25 or higher.
•
Set Condition:
The amplifier detects that the output circuits are shorted together.
Possible Causes
(X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT SHORTED TO THE (X298) AMPLIFIED RIGHT I/P
SPEAKER (-) CIRCUIT
AMPLIFIED RIGHT 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, erase Amplifier DTCs.
Turn the radio on.
Turn the volume level to 25.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1469-CHANNEL 2 AUDIO
SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?
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 OPERATION OF THE AMPLIFIED RIGHT I/P SPEAKER
Disconnect the Amplified Right I/P Speaker.
Measure the resistance of the speaker between the two terminals.
Is the resistance of the speaker less than 1 ohm?
Yes
>> Replace the Amplified Right I/P Speaker in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.
No
>> Go To 3
8A - 88
AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSIS
WK