B1466

B1466-CHANNEL 2 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: B1466-CHANNEL 2 AUDIO SPEAKER 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 (X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND





Disconnect the Amplifier C1 harness connector.

Disconnect the Right Front I/P Speaker harness connector.

Measure the resistance between ground and the (X208) Amplified Right Front I/P Speaker (+) circuit.

Is the resistance below 10K ohms?

Yes

- Repair the (X208) Amplified Right Front I/P Speaker (+) circuit for a short to ground.
- Perform BODY VERIFICATION TEST VER-1. Body Verification Test

No

- Go To 3
-

3. CHECK THE (X298) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND





Measure the resistance between ground and the (X298) Amplified Right Front I/P Speaker (-) circuit.

Is the resistance below 10K ohms?

Yes

- Repair the (X298) Amplified Right Front I/P 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 RIGHT FRONT I/P SPEAKER





Turn the ignition off.

Reconnect and reinstall the Right Front I/P Speaker.

Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground.

Is the resistance below 10K ohms?

Yes

- Replace the Right Front I/P Speaker.
- Perform BODY VERIFICATION TEST VER-1. Body Verification Test

No

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