B1475

B1475-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT LOW






For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:
- With the ignition on.
- Set Condition:
- The Amplifier detects a shorted to ground condition on the speaker output circuit.






Diagnostic Test

1. CHECK FOR AN INTERMITTENT CONDITION

Turn the ignition on, then off, and then on again.

With the scan tool, read Amplifier DTCs.

Does the scan tool display active: B1475-CHANNEL 5 OUTPUT CIRCUIT LOW?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. CHECK THE (X205) LEFT REAR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND





Disconnect the Amplifier C2 harness connector.

Disconnect the Left Rear Speaker harness connector.

Measure the resistance between ground and the (X205) Left Rear Speaker (+) circuit.

Is the resistance below 5.0 ohms?

Yes

- Repair the (X205) Left Rear Speaker (+) circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3
-

3. CHECK THE (X295) LEFT REAR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND





Measure the resistance between ground and the (X295) Left Rear Speaker (-) circuit.

Is the resistance below 5.0 ohms?

Yes

- Repair the (X295) Left Rear Speaker (-) for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 4
-

4. CHECK OPERATION OF THE AMPLIFIED LEFT REAR SPEAKER





Turn the ignition off.

Reconnect and reinstall the Left Rear Speaker.

Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground.

Is the resistance below 10K ohms?

Yes

- Replace the Left Rear Speaker.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Amplifier.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test