Diagnostic Test

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

CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on and open one of the Rear 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-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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE AMPLIFIER

Fig 1: Checking Amplifier
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 Amplifier 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 Amplifier in accordance with the Service Information. Refer to AMPLIFIER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (X52) RIGHT REAR AUDIO (+) CIRCUIT, AND THE (X58) RIGHT REAR AUDIO (-) CIRCUITS FOR A SHORT TOGETHER

Fig 2: Checking Right Rear Speaker (+) Circuit, And The Right Rear Speaker (-) Circuits For A Short Together
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the TGW harness connector.
2. Measure the resistance between the (X52) Right Rear Audio (+) circuit, and the (X58) Right Rear Audio (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X52) Right Rear Audio (+) circuit, and the (X58) Right Rear Audio (-) circuit for a short together.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the TGW in accordance with the Service Information. Refer to MODULE, TELEMATICS GATEWAY, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .