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B140E

B140E-REAR RIGHT AUDIO SPEAKER OUTPUT CIRCUIT HIGH


B140E-Rear Right Audio Speaker Output Circuit High:




WHEN MONITORED

SET CONDITION

POSSIBLE CAUSES
- Speaker
- (X304) speaker output circuit (+)
- (X394) speaker output circuit (-)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

DIAGNOSTIC TEST

1. INTERMITTENT CONDITION




Turn the ignition on, then off, and then on again.
With the scan tool, read Radio DTCs.

Q: Does the scan tool display active: B140E-REAR RIGHT 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 (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.

Q: Is the voltage above 10.0 volts?

YES: Repair the (X304) 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 (X394) SPEAKER (-) CIRCUIT




Measure for voltage on the (X394) Speaker (-) circuit.

Q: Is the voltage above 10.0 volts?

YES: Repair the (X394) 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