B1485

B1485-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT HIGH





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

- 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, engine not running.
2. With the scan tool, read the active DTCs.

Does the scan tool display: B1485-CHANNEL 8 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 (X200) AMPLIFIED CENTER (I/P) SPEAKER (+) CIRCUIT




1. Turn the ignition off.
2. Disconnect the Amplifier C1 harness connector.
3. Disconnect the Center Instrument Panel (I/P) Speaker harness connector.
4. Turn the ignition on.
5. Measure the voltage between the (X200) Amplified Center (I/P) Speaker (+) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X200) Amplified Center (I/P) Speaker (+) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK FOR VOLTAGE ON THE (X290) AMPLIFIED CENTER (I/P) SPEAKER (-) CIRCUIT




1. Measure the voltage between the (X290) Amplified Center (I/P) Speaker (-) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X290) Amplified Center (I/P) Speaker (-) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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