B1468

B1468-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT OPEN





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

- When Monitored:
Amplifier BUS wake-up. Amplifier reset with scan tool.

- Set Condition:
The amplifier detects an open condition on the speaker output circuit.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on.
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: B1468-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT OPEN?

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. CHECK THE OPERATION OF THE RIGHT INSTRUMENT PANEL SPEAKER




1. Turn the ignition off.
2. Disconnect the Right Instrument Panel Speaker harness connector.
3. Turn the ignition on.
4. Turn the radio on with the settings as they were in Step 1.
5. With a voltmeter set to read A/C voltage, measure the voltage of the Amplified Right I/P Speaker circuits in the Right Instrument Panel Speaker harness connector.

Is the voltage present greater than 1 volt?

Yes

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

No

- Go To 3

3. CHECK THE (X208) AMPLIFIED RIGHT I/P SPEAKER (+) CIRCUIT FOR AN OPEN




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

Is the resistance below 2.0 Ohms?

Yes

- Go To 4

No

- Repair the (X208) Amplified Right I/P Speaker (+) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE (X298) AMPLIFIED RIGHT I/P SPEAKER (-) CIRCUIT FOR AN OPEN




1. Measure the resistance of the (X298) Amplified Right I/P Speaker (-) circuit between the Amplifier C1 harness connector and the Right Instrument Panel Speaker harness connector.

Is the resistance below 2.0 Ohms?

Yes

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

No

- Repair the (X298) Amplified Right I/P Speaker (-) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.