B1406
B1406-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT HIGHB1406-Front Right Audio Speaker Output Circuit High:
POSSIBLE CAUSES
- Speaker
- (X54) speaker output circuit (+)
- (X56) speaker output circuit (-)
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: B1406-FRONT 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 (X54) SPEAKER (+) CIRCUIT
Turn the ignition off.
Disconnect the Radio C1 harness connector.
Disconnect the Right Rear Speaker harness connector.
Measure for voltage on the (X52) Speaker (+) circuit.
Q: Is the voltage above 10.0 volts?
YES: Repair the (X52) 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 (X56) SPEAKER (-) CIRCUIT
Measure for voltage on the (X58) Speaker (-) circuit.
Q: Is the voltage above 10.0 volts?
YES: Repair the (X58) 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