B1466

B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW





For a complete wiring diagram, refer to the Wiring Information.

- 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 and open one of the front doors.

NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs.

2. With the scan tool, record and erase the Amplifier DTCs.
3. With the scan tool, reset the amplifier.
4. Turn the radio on and set the volume to 25.
5. Adjust the speakers to the front and center.
6. With the scan tool, read the active Amplifier DTCs.

Does the scan tool display active: B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. RIGHT INSTRUMENT PANEL (I/P) SPEAKER




1. With the scan tool, erase the Amplifier DTCs.
2. Turn the ignition off.
3. Disconnect the Right Instrument Panel Speaker harness connector.
4. Turn the ignition on.
5. With the scan tool, reset the amplifier.
6. Turn the radio on with the same settings as in Step 1.
7. With the scan tool, read the active Amplifier DTCs.

Does the scan tool display active: B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes

- Go To 3

No

- Replace the Right Instrument Panel Speaker.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Amplifier C1 harness connector.
3. Measure the resistance between ground and the (X208) Amplified Right I/P Speaker (+) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X208) Amplified Right Front I/P Speaker (+) circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. CHECK THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND




1. Measure the resistance between ground and the (X298) Amplified Right I/P Speaker (-) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X298) Amplified Right I/P Speaker (-) for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Amplifier.
- Perform the BODY VERIFICATION TEST. Body Verification Test.