B1482

B1482-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER





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

- When Monitored:
With the ignition on. Radio volume at 25 or higher.

- Set Condition:
The Amplifier detects that the output circuits are shorted together.





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 rear and center.
6. Using the scan tool, read the active Amplifier DTCs.

Does the scan tool: B1482-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?

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 THE OPERATION OF THE AMPLIFIED SUBWOOFER SPEAKER




1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Disconnect the Amplified Subwoofer harness connector.
5. Turn the ignition on.
6. Turn the radio on and set the volume to 25.
7. Using the scan tool, read the active Amplifier DTCs.

Does the scan tool: B1482-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?

No

- Replace the Amplified Subwoofer Speaker.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

- Go To 3

3. CHECK THE (X300) AMPLIFIED SUBWOOFER SPEAKER 1 (+) CIRCUIT AND THE (X390) AMPLIFIED SUBWOOFER SPEAKER 1 (-) CIRCUITS FOR A SHORT TOGETHER




1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance between the (X300) Amplified Subwoofer 1 (+) circuit and the (X390) Amplified Subwoofer 1 (-) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X300) Amplified Subwoofer Speaker 1 (+) circuit for a short to the (X390) Amplified Subwoofer Speaker 1 (-) circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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