For a complete wiring diagram Refer to Section 8W.When Monitored:With the ignition on.Set Condition:The Totally Integrated Power Module (TIPM) does not detect a change from High to Low voltage on the Rear Wiper Park Switch Sense Circuit.Possible Causes(W17) REAR WIPER PARK SWITCH SENSE CIRCUIT OPEN(W17) REAR WIPER PARK SWITCH SENSE CIRCUIT SHORTED TO VOLTAGEREAR WIPER MOTORTOTALLY INTEGRATED POWER MODULE1. INTERMITTENT CONDITIONTurn the ignition on.With the scan tool, clear all DTC's.Cycle the Wiper Switch on and off 3 times.With the scan tool, read DTC's.Does the scan tool display this DTC as active?YesGo To 2 NoThe condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.Perform the BODY VERIFICATION TEST — VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE) 2. (W17) WIPER PARK SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.Disconnect the Rear Wiper Motor harness connector.Turn the ignition on.Using a 12–volt test light connected to ground, probe the (W17) Rear Wiper Park Switch Sense circuit.Does the test light illuminate brightly?Yes Repair the (W17) Rear Wiper Park Switch Sense circuit for a short to voltage.Perform the BODY VERIFICATION TEST — VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE) No Go To 33. CHECK THE REAR WIPER MOTOR

Connect a jumper wire between the (W17) Rear Wiper Park Switch Sense circuit and ground.With the scan tool, read the Rear Wiper Park Switch Sense.Does the Rear Wiper Park Switch Sense display: True?Yes Replace the Rear Wiper Motor in accordance with the Service Information.Perform the BODY VERIFICATION TEST — VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE) No Go To 44. (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT OPENTurn the ignition off.Disconnect the TIPM C7 harness connector.Measure the resistance of the (W17) Rear Wiper Park Switch Sense circuit between the Rear Wiper Motor harness connector and the TIPM C7 harness connector.Is the resistance below 10.0 ohms?YesReplace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.Perform the BODY VERIFICATION TEST — VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE) NoRepair the (W17) Rear Wiper Park Switch Sense circuit for an open.Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)