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. With 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. With the scan tool, read the active TGW DTCs.
  Does the scan tool display active: B1408-13-REAR LEFT 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.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
CHECK THE LEFT REAR SPEAKER

Fig 1: Measuring Resistance Of Speaker Between Two Terminals
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Left Rear Speaker harness connector.
3. Measure the resistance of the speaker between the two terminals.
  NOTE:
  The graphic shows the connector for reference only. Measure between the speaker terminals.
  
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Replace the Left Rear Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - Go To 3.
CHECK THE (X303) LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN

Fig 2: Checking Left Rear Speaker (+) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the TGW harness connector.
2. Measure the resistance of the (X303) Left Rear Speaker (+) circuit between the TGW harness connector and the Left Rear Speaker harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4.
  No
  - Repair the (X303) Left Rear Speaker (+) circuit for an open.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
CHECK THE (X393) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN

Fig 3: Checking Left Rear Speaker (-) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (X393) Left Rear Speaker (-) circuit between the TGW harness connector and the Left Rear Speaker harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - 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.
  No
  - Repair the (X393) Left Rear Speaker (-) circuit for an open.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.