Diagnostic Test

1) INTERMITTENT CONDITION
Turn the ignition on, then off, and then on again.

With the scan tool, read Radio DTCs.

Does the scan tool display active: B140E-REAR RIGHT AUDIO SPEAKER OUTPUT CIRCUIT HIGH?

Yes
- Go to Step 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 the BODY VERIFICATION TEST - VER 1 .
2) CHECK FOR VOLTAGE ON THE (X304) SPEAKER (+) CIRCUIT
Turn the ignition off.

Disconnect the Radio C1 harness connector.

Disconnect the Right Rear Speaker harness connector.

Measure for voltage on the (X304) Speaker (+) circuit.

Is the voltage above 10.0 volts?

Yes
- Repair the (X304) Speaker (+) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST - VER 1 .
No
- Go to Step 3.
3) CHECK FOR VOLTAGE ON THE (X394) SPEAKER (-) CIRCUIT
Measure for voltage on the (X394) Speaker (-) circuit.

Is the voltage above 10.0 volts?

Yes
- Repair the (X394) Speaker (-) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST - VER 1 .
No
- Replace the radio in accordance with the service information.
- Perform the BODY VERIFICATION TEST - VER 1 .