Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. Turn the Rear Windshield Washers on and off.
3. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  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 .
CHECK THE (W20) REAR WASHER PUMP MOTOR CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Washer Pump Motor harness connector.
3. Disconnect the BCM A harness connector.
4. Measure the resistance between ground and the (W20) Rear Washer Pump Motor Control circuit.
  Is the resistance above 10k Ohms?
  
  Yes
  - Go To 3
  No
  - Repair the short to ground in the (W20) Rear Washer Pump Motor Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR CORRECT WASHER PUMP MOTOR OPERATION
1. Turn the ignition off.
2. Connect the BCM A harness connector.
3. Turn the ignition on.
4. Measure the voltage between ground and the (W20) Rear Washer Pump Motor Control circuit while activating the Rear Windshield Washers.
  Does the voltage momentarily measure greater than 2.3 volts?
  
  Yes
  - Replace the Washer Pump Motor in accordance with the Service Information. Refer to PUMP, WINDSHIELD WASHER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .