2012 Jeep Wrangler JK Factory Service Manual 28 - DTC-Based Diagnostics

B1471-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT HIGH

B1471-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT HIGH



For a complete wiring diagram, refer to the Wiring Information.



Possible Causes

(X202) RIGHT FRONT SPEAKER (+) CIRCUIT SHORTED TO VOLTAGE
(X292) RIGHT FRONT SPEAKER (-) CIRCUIT SHORTED TO VOLTAGE
AMPLIFIER

1. CHECK FOR AN INTERMITTENT CONDITION


1. Turn the ignition on.
2. Using the scan tool, record and erase the Amplifier DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the Radio on and set the volume to 25.
5. Adjust the speakers to the front and center.
6. Using the scan tool, read the active Amplifier DTCs.


Does the scan tool display active: B1471-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?

Yes


No


2. CHECK FOR VOLTAGE ON THE (X202) RIGHT FRONT SPEAKER (+) CIRCUIT



1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Turn the ignition on.
4. Measure the voltage between the (X202) Right Front Speaker (+) circuit and ground.


Is there any voltage present?

Yes


No


3. CHECK FOR VOLTAGE ON THE (X292) RIGHT FRONT SPEAKER (-) CIRCUIT



1. Measure the voltage between the (X292) Right Front Speaker (-) circuit and ground.


Is there any voltage present?

Yes


No