Operation CHARM: Car repair manuals for everyone.

B140A







B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH





For a complete wiring diagram Refer to Diagrams/Electrical.







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: B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH?

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 FOR VOLTAGE ON THE (X205) LEFT REAR SPEAKER (+) CIRCUIT




Turn the ignition off.
Disconnect the Radio C1 harness connector.
Disconnect the Left Rear Speaker harness connector.
Measure for voltage on the (X205) Left Rear Speaker (+) circuit.
Is the voltage above 10.0 volts?

Yes


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


No


- Go To 3
-



3. CHECK FOR VOLTAGE ON THE (X295) LEFT REAR SPEAKER (-) CIRCUIT




Turn the ignition on.
Measure for voltage on the (X295) Left Rear Speaker (-) circuit.

Is the voltage above 10.0 volts?

Yes


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


No


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