Diagnostic Test

WARNING: This page is about a different car, the 2012 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN INTERMITTENT CONDITION
NOTE:
A front door must remain open whenever checking or erasing TGW DTCs.
1. Using the scan tool, record and erase the TGW DTCs.
2. Cycle the ignition switch from on to off, wait five seconds and then back to on.
3. Turn the radio on and set the volume to 25.
4. Adjust the speakers to the Rear and center.
5. Using the scan tool, read the active TGW DTCs.
  Does the scan tool display active: B140C-2B-REAR RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER?
  
  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.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
CHECK THE RIGHT REAR SPEAKERS

Fig 1: Right Rear Speaker Connector End View
Courtesy of CHRYSLER GROUP, LLC
1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Disconnect the Right Rear Speaker harness connector.
5. Turn the ignition on.
6. Turn the radio on and set the volume to 25.
7. Using the scan tool, read the active TGW DTCs.
  Does the scan tool display active: B140C-2B-REAR RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER?
  
  Yes
  - Go To 3.
  No
  - Replace the Right Rear Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
CHECK THE (X304) RIGHT REAR SPEAKER (+) CIRCUIT, AND THE (X394) RIGHT REAR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER

Fig 2: Measuring Resistance Between Right Rear Speaker (+) Circuit & Right Rear Speaker (-) Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the TGW harness connector.
2. Measure the resistance between the (X304) Right Rear Speaker (+) circuit, and the (X394) Right Rear Speaker (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X304) Right Rear Speaker (+) circuit, and the (X394) Right Rear Speaker (-) circuit for a short together.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Replace the TGW in accordance with the Service Information. Refer to MODULE, TELEMATICS GATEWAY, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.