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 DTC
NOTE:
Verify the connection of the Rearview Mirror harness connector.
1. Turn the ignition on.
2. With the scan tool, read the active DTCs.
  Does the scan tool display: B143A-13-MICROPHONE 1- CIRCUIT OPEN 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: Inside Rearview Mirror Harness Connector End View
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Inside Rearview Mirror harness connector.
3. Connect a jumper wire between the (X792) Microphone 1 IN (-) and the (X712) Microphone 1 IN (+) circuits.
4. Turn the ignition on.
5. With the scan tool, read the DTCs.
  NOTE:
  B143A-92-MICROPHONE 1 - PERFORMANCE OR INCORRECT OPERATION should display as active as a result of this test.
  
  Does the scan tool display: B143A-13-MICROPHONE 1 - CIRCUIT OPEN 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 (X712) MICROPHONE 1 IN (+) CIRCUIT FOR AN OPEN

Fig 2: Checking Microphone 1 In (+) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Hands Free Module harness connector.
3. Measure the resistance of the (X712) Microphone 1 IN (+) circuit between the Inside Rearview Mirror and Hands Free Module harness connectors.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (X712) Microphone 1 IN (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (X792) MICROPHONE 1 IN (-) CIRCUIT FOR AN OPEN

Fig 3: Checking Microphone 1 In (-) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (X792) Microphone 1 IN (-) circuit between the Inside Rearview Mirror and Hands Free Module harness connectors.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - 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 .
  No
  - Repair the (X792) Microphone 1 IN (-) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .