B1484
B1484-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT LOW
For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.
- When Monitored:
With the ignition on.
- Set Condition:
The Amplifier detects a shorted to ground condition on the speaker output circuit.
1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on, then off, and then on again.
2. With the scan tool, read Amplifier DTCs.
Does the scan tool display active: B1484-CHANNEL 8 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 the BODY VERIFICATION TEST. Body Verification Test.
2. CHECK THE (X200) CENTER INSTRUMENT PANEL SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the Amplifier C1 harness connector.
2. Disconnect the Center Instrument Panel Speaker harness connector.
3. Measure the resistance between ground and the (X200) Center Instrument Panel Speaker (+) circuit.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (X200) Center Instrument Panel Speaker (+) circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 3
3. CHECK THE (X290) CENTER INSTRUMENT PANEL SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between ground and the (X290) Center Instrument Panel Speaker (-) circuit.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (X290) Center Instrument Panel Speaker (-) for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 4
4. CHECK OPERATION OF THE CENTER INSTRUMENT PANEL SPEAKER
1. Turn the ignition off.
2. Reconnect and reinstall the Center Instrument Panel Speaker.
3. Measure the resistance of the speaker circuit between the Amplifier C2 harness connector and ground.
Is the resistance below 10K Ohms?
Yes
- Replace the Center Instrument Panel Speaker.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace the Amplifier.
- Perform the BODY VERIFICATION TEST. Body Verification Test.