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B140C-13-REAR RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT OPEN - PREMIUM





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

NOTE: There are two versions of the B140C-13 DTC test. In order to select the proper test you must know if the vehicle is equipped with an Amplifier. If the vehicle is equipped with an Amplifier use the B140C-13-PREMIUM test. If the vehicle is not equipped with an Amplifier use the B140C-13-BASE test.

Theory of Operation

The (X52) Right Rear Audio (+) circuit and the (X58) Right Rear Audio (-) circuit are outputs of the Telematics Gateway (TGW). The TGW controls and monitors these circuits for a concern.

For a detailed description of the Audio System. Audio And Video - Description.

For additional information regarding the operation of the Audio System. Audio And Video - Operation.

- When Monitored:
With the ignition on.

- Set Condition:
The TGW detects an open condition on the audio 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 TGW DTCs.

2. Using the scan tool, record and erase the TGW DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the Radio on and set the volume to 25.
5. Adjust the speakers to the Rear and center.
6. Using the scan tool, read the active TGW DTCs.

Does the scan tool display active: B140C-13-REAR RIGHT 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 REAR AUDIO




1. Turn the ignition off.
2. Disconnect the Amplifier harness connector.
3. Connect a jumper wire between the (X52) Right Rear Audio (+) circuit and the (X58) Right Rear Audio (-) circuits.
4. Turn the ignition on.
5. Adjust the speakers to the rear and center.
6. Using the scan tool, read the active TGW DTCs.

Does the scan tool display active: B140C-13-REAR RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT OPEN?

Yes

- Go To 3

No

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

3. CHECK THE (X52) RIGHT REAR AUDIO (+) CIRCUIT FOR AN OPEN




1. Turn the ignition off.
2. Disconnect the TGW harness connector.
3. Measure the resistance of the (X52) Right Rear Audio (+) circuit between the TGW harness connector and the Amplifier harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Go To 4

No

- Repair the (X52) Right Rear Audio (+) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. CHECK THE (X58) RIGHT REAR AUDIO (-) CIRCUIT FOR AN OPEN




1. Measure the resistance of the (X58) Right Rear Audio (-) circuit between the TGW harness connector and the Amplifier harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Replace the TGW. Telematics Gateway Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (X58) Right Rear Audio (-) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.