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 CCN DTCs.
3. Turn the Wipers ON then OFF.
4. With the scan tool, read the Wiper DTCs.
  Does the scan tool read: B2302-WIPER MODE SWITCH INPUT CIRCUIT HIGH?
  
  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 .
MULTIFUNCTION SWITCH
1. Turn the ignition off.
2. Disconnect the Multifunction Switch harness connector.
3. Make sure the switch is in the OFF position.
4. Measure the internal resistance of the Multifunction Switch between the G902 and W52 circuits.
  Does the Switch measure more than 5.0 Ohms?
  
  Yes
  - Replace the Multifunction Switch in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
INSTRUMENT CLUSTER

Fig 1: Measuring Resistance Of MUX Circuit To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Multifunction Switch connector.
3. Disconnect the Instrument Cluster C1 harness connector.
4. Measure the resistance of the (W52) MUX circuit.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (W52) MUX circuit for an open condition.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Instrument Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .