B1461-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
- With the ignition on.
- Set Condition:
- The Amplifier detects a shorted to ground condition on the speaker output circuit.
| Possible Causes |
| (X209) AMPLIFIED LEFT FRONT I/P SPEAKER (+) CIRCUIT SHORTED TO GROUND |
| (X299) AMPLIFIED LEFT FRONT
I/P SPEAKER (-) CIRCUIT SHORTED TO GROUND |
| LEFT FRONT I/P SPEAKER |
| AMPLIFIER |
Diagnostic Test
1. CHECK FOR AN INTERMITTENT CONDITIONTurn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1461-CHANNEL 1 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.
2. CHECK THE (X209) AMPLIFIED LEFT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
Disconnect the Amplifier C2 harness connector.
Measure the resistance between ground and the (X209) Amplified Left Front I/P Speaker (+) circuit.
Is the resistance below 10K ohms?
Yes
- Repair the (X209) Amplified Left Front I/P Speaker (+) circuit for a short to ground.
- Perform BODY VERIFICATION TEST VER-1.
No
- Go To 3
3. CHECK THE (X299) AMPLIFIED LEFT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (X299) Amplified Left Front I/P Speaker (-) circuit.
Is the resistance below 10K ohms?
Yes
- Repair the (X299) Amplified Left Front I/P Speaker (-) for a short to ground.
- Perform BODY VERIFICATION TEST VER-1.
No
- Go To 4
4. CHECK OPERATION OF THE AMPLIFIED LEFT FRONT I/P SPEAKER
Turn the ignition off.
Reconnect and reinstall the Left Front I/P Speaker.
Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground.
Is the resistance below 10K ohms?
Yes
- Replace the Left Front I/P Speaker in accordance with the service information.
- Perform BODY VERIFICATION TEST VER-1.
No
- Replace the Amplifier in accordance with the service information.
- Perform BODY VERIFICATION TEST VER-1.