B1485-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT HIGH

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

When Monitored:
With the ignition on.
Set Condition:
The Amplifier detects a short to battery condition on the output circuit.

Possible Causes
(X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT SHORTED TO VOLTAGE
(X391) AMPLIFIED SUBWOOFER 2 (-) 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 rear and center.

6.	Using the scan tool, read the active Amplifier DTCs.

Does the scan tool display: B1485-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?

Yes

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. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

2. CHECK FOR VOLTAGE ON THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT

1.	Turn the ignition off.

2.	Disconnect the Amplifier C2 harness connector.

3.	Turn the ignition on.

4.	Measure the voltage between the (X301) Amplified Subwoofer 2 (+) circuit and ground.

Is there any voltage present?

Yes

Repair the (X301) Amplified Subwoofer 2 (+) circuit for a short to voltage.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

3. CHECK FOR VOLTAGE ON THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT

1.	Measure the voltage between the (X391) Amplified Subwoofer 2 (-) circuit and ground.

Is there any voltage present?

Yes

Repair the (X391) Amplified Subwoofer 2 (-) circuit for a short to voltage.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

Replace the Amplifier in accordance with the Service Information.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).