Diagnostic Test

Turn the ignition on.

With the scan tool, record and erase DTCs.

Turn the ignition off, wait 30 seconds then turn the ignition on.

With the scan tool, read DTCs.

Is the DTC active? 

Yes 

1. Go To  2.

No 

1. 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.
2. Perform BODY VERIFICATION TEST .

Fig 1: Rearview Mirror Harness Connector

Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Inside Rearview Mirror C2 harness connector.

Connect a jumper wire from the (X722) Microphone 2 IN (+) circuit to ground.

Turn the ignition on.

With the scan tool, read the active DTC's.

Does the scan tool display this DTC as active? 

Yes 

1. Go To  3.

No 

1. Replace the Inside Rearview Mirror in accordance with the service information.
2. Perform BODY VERIFICATION TEST .

Fig 2: Measuring Resistance Of (X722) Microphone 2 IN (+) Circuit Between Radio C1 Connector And Inside Rearview Mirror Connector

Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Radio C1 harness connector.

Disconnect the Inside Rearview Mirror C2 harness connector.

Measure the resistance of the (X722) Microphone 2 IN (+) circuit between the Radio C1 connector and the Inside Rearview Mirror C2 connector.

Is the resistance below 5.0 ohms? 

Yes 

1. Replace the Hands Free Module in accordance with the service information.
2. Perform BODY VERIFICATION TEST .

No 

1. Repair the (X722) Microphone 2 IN (+) circuit for an open.
2. Perform BODY VERIFICATION TEST .