Diagnostic Test

CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Turn the ignition off, wait 30 seconds then turn the ignition on.
4. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded or contaminated terminals.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
INSIDE REARVIEW MIRROR

Fig 1: Checking Inside Rearview Mirror
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Rearview Mirror harness connector.
3. Connect a jumper wire from the (X722) Microphone 2 IN (+) circuit to ground.
4. Turn the ignition on.
5. With the scan tool, read the active DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3
  No
  - Replace the Rearview Mirror in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(X722) MICROPHONE 2 IN (+) CIRCUIT OPEN

Fig 2: Checking Microphone 2 IN (+) Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Radio C2 harness connector.
3. Disconnect the Inside Rearview Mirror harness connector.
4. Measure the resistance of the (X722) Microphone 2 IN (+) circuit between the Radio C2 connector and the inside rearview mirror connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Radio in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the (X722) Microphone 2 IN (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .