Find a good schematic for your car's windshield wiper circuit. It's a simple circuit to follow, but you will probably have to replace a circuit board.
Hope this helps.
The windshield wiper motor is a smart wiper motor with an integrated electronics module. The internal components of the motor are the high/low relay, washer pump relay, and the run/park relay and associated electronics.
The windshield wiper motor receives its inputs from the windshield wiper/washer switch. These signals are ground reference signals. When the switch is placed in different positions, various input signals are selected and sent through circuits to the motor. The windshield wiper motor module identifies these selected input signals and activates the motor to the selected function.!
Your probably going to need a new wiper motor ! ! ! But you should always test before replacing parts !
Visual Inspection Chart
Mechanical
Electrical
PINPOINT TEST C: THE WIPERS STAY ON CONTINUOUSLY
CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
Test Step
Result / Action to Take
C1 CHECK THE WINDSHIELD WIPER/WASHER SWITCH
Yes
GO to C2 .
No
INSTALL a new windshield wiper/washer switch. REFER to Wiper/Washer Switch in this section.
C2 CHECK CIRCUITS 56 (DB/OG), 58 (WH), 61 (YE/RD), AND 63 (RD) FOR A SHORT TO GROUND
Yes
Windshield Wiper Motor C125 Pin
Circuit
C125-10
56 (DB/OG)
C125-11
58 (WH)
C125-1
63 (RD)
C125-9
61 (YE/RD)
GO to C3 .
No
REPAIR the circuit(s). TEST the system for normal operation.
C3 CHECK FOR CORRECT WINDSHIELD WIPER MOTOR OPERATION
Yes
INSTALL a new windshield wiper motor. REFER to Wiper Motor in this section. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
You
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