Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
NOTE:
Verify the connection of the inside rearview mirror harness connector.
1. Ignition on, engine not running.
2. With the scan tool, read the DTCs.
  Does the scan tool display: B155F-11-MICROPHONE 2 CIRCUIT (-) - CIRCUIT SHORT TO GROUND as active?
  
  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 STANDARD PROCEDURE .
CHECK THE INSIDE REARVIEW MIRROR

Fig 1: Rearview Mirror Connector End View
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Inside Rearview Mirror harness connector.
3. Ignition on, engine not running.
4. Wait 20 seconds.
5. With the scan tool, read the active DTCs.
  Does the scan tool display: B155F-11-MICROPHONE 2 CIRCUIT (-) - CIRCUIT SHORT TO GROUND as active?
  
  Yes
  - Go To 3
  No
  - Replace the Inside Rearview Mirror in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (X723) MICROPHONE 2 IN (-) CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking Microphone 2 In (-) Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Hands Free Module harness connector.
3. Measure the resistance between ground and the (X723) Microphone 2 IN (-) circuit.
  Is the resistance below 5 Ohms?
  
  Yes
  - Repair the short to ground in the (X723) Microphone 2 IN (-) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Hands Free Module in accordance with the Service Information. Refer to MODULE, HANDS FREE, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .