B1462

B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH





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

Theory of Operation

The (X209) Left Front Door Tweeter (+) circuit and the (X299) Left Front Door Tweeter (-) circuit are outputs of the Amplifier. The Amplifier controls and monitors these circuits for a concern.

For a detailed description of the Audio System. Audio And Video - Description.

For additional information regarding the operation of the Audio System. Audio And Video - Operation.

- When Monitored:
With the ignition on.

- Set Condition:
The Amplifier detects a short to battery condition on the output circuit.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on and open one of the front doors.

NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs.

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 20.
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: B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK FOR VOLTAGE ON THE (X209) LEFT FRONT DOOR TWEETER (+) CIRCUIT




1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Disconnect the Amplified Left Front Door Tweeter harness connector.
4. Turn the ignition on.
5. Measure the voltage between the (X209) Left Front Door Tweeter (+) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X209) Left Front Door Tweeter (+) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK FOR VOLTAGE ON THE (X299) LEFT FRONT DOOR TWEETER (-) CIRCUIT




1. Measure the voltage between the (X299) Left Front Door Tweeter (-) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X299) Left Front Door Tweeter (-) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Amplifier. Amplifier - Removal
- Perform the BODY VERIFICATION TEST. Body Verification Test.