B14E4

B14E4-CHANNEL 2 AUDIO LEFT CONTINUITY





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

Theory of Operation

When the ignition switch is in the RUN position, and the radio is in the video mode. The radio sends an audio signal to the Video Screen Module, using circuits (X545) Channel 2 Audio Left and (X546) Channel 2 Audio Return.

- When Monitored:
Ignition on, and the radio is in the video mode.

- Set Condition:
The radio detects an open condition on the Channel 2 Audio Left circuit.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on.
2. Set the radio in the video mode.
3. With the scan tool, record and erase the VES DTCs.
4. Cycle the ignition switch from on to off, wait five seconds and then back to on.
5. Turn the ignition on and set the radio in the video mode.
6. With the scan tool, read the active VES DTCs.

Does the scan tool display active: B14E4-CHANNEL 2 AUDIO LEFT CONTINUITY?

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 (X545) CHANNEL 2 AUDIO LEFT OPEN CIRCUIT FOR AN OPEN




1. Disconnect the radio C3 harness connector.
2. Disconnect the Video Screen Module C1 harness connector.
3. Measure the resistance of the (X545) Channel 2 Audio Left circuit between the radio C3 harness connector and the Video Screen Module C1 harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Go To 3

No

- Repair the (X545) Channel 2 Audio Left circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (X546) CHANNEL 2 AUDIO RETURN CIRCUIT FOR AN OPEN




1. Measure the resistance of the (X546) Channel 2 Audio Return circuit between the radio C3 harness connector and the Video Screen Module C1 harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Replace the radio. Radio - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (X546) Channel 2 Audio Return circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.