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 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 92-MICROPHONE 1- PERFORMANCE OR INCORRECT OPERATION 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. Turn the ignition on.
4. With the scan tool, read the active DTCs.
  NOTE:
  B143A-13-MICROPHONE 1 - CIRCUIT OPEN should display as active as a result of this test.
  
  Does the scan tool display: B143A 92-MICROPHONE 1 - PERFORMANCE OR INCORRECT OPERATION 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 (+) AND THE (X792) MICROPHONE 1 IN (-) CIRCUITS FOR A SHORT TOGETHER

Fig 2: Checking Microphone 1 In (+) & Microphone 1 In (-) Circuits For Short Together
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Hands Free Module harness connector.
3. Measure the resistance between the (X712) Microphone 1 IN (+) circuit, and the (X792) Microphone 1 IN (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X712) Microphone 1 IN (+) and the (X792) Microphone 1 IN (-) circuits for a short together.
  - 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 .