Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Dakota. However, it is still accessible from the selected car via links, so may be relevant.

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all FCM DTCs.
3. Turn the Wipers ON then OFF.
4. With the scan tool, read the Wiper DTCs.
  Does the scan tool read: B2313-WIPER ON/OFF CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 2.
  No
  - The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
WIPER ON/OFF RELAY
1. Turn the ignition off.
2. Install a substitute relay in place of the Wiper On/Off Relay.
3. Turn the ignition on.
4. With the scan tool, read the DTCs.
  Does the scan tool read: B2313-WIPER ON/OFF CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 3.
  No
  - Replace the Wiper On/Off Relay in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
FRONT CONTROL MODULE

Fig 1: Measuring The Resistance Between Ground & The Wiper On/Off Relay Control Circuit In The IPM
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Remove the Wiper On/Off Relay.
3. Disconnect the FCM IPM harness connector.
4. Measure the resistance between ground and the (W5) Wiper On/Off Relay Control circuit in the IPM.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the IPM in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Front Control Module in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .