They worked fine on the way home, then the next day they won't turn on at any speed, on intermittant or by pressing wash. The wash does squirt though. Checked the fuse, swapped relays around, and also replaced the multifunction switch. I checked voltage on the connector going to the wiper motor and all I get is 5.5 volts on one pin. I assume I should be getting 12v on that connector with the wiper switch turned on so it looks to me that the wiper motor is not getting power.


Any ideas?

 

08 - Electrical/8R - Wipers/Washers/Diagnosis and Testing

DIAGNOSIS AND TESTING - FAILED PARK SWITCH

If the wiper park switch has failed, the windshield wipers will operate as follows:

•SWITCH OFF - Wipers stop in current location regardless of the park signal.
•INTERMITTENT MODE - Wipers operate continuously or at low speed for one or more extra wipes.
•LOW SPEED - Wipers operate at low speed.
•HIGH SPEED - Wipers operate at high speed.
•WIPE AFTER WASH - Wipers operate at low speed in any mode setting. Wipers operate only while the wash button is depressed with switch in the OFF mode and wipers stop in mid-cycle when button is released.

The windshield wiper park switch and circuit is monitored by the BCM. The park switch and circuit can be tested using the WIPER SYSTEM DIAGNOSIS table.


WIPER SYSTEM DIAGNOSIS







CONDITION


POSSIBLE CAUSES


CORRECTION


WIPER BLADES DO NOT PARK PROPERLY 1. Wiper arms improperly parked. 1. Remove wiper arms and repark. Refer to wiper arm removal and installation.
2. Wiper arms are loose on pivot shaft. 2. Remove wiper arm and repark. Refer to wiper arm removal and installation.
3. Motor crank loose at output shaft. 3. Remove wiper arm, run wiper motor to park position and remove the module. Without rotating the motor output shaft, remove the crank and clean any foreign matter from the motor shaft. Install the motor crank in its original position.
4. Stripped wiper arm head. 4. Replace wiper arm.
MOTOR STOPS IN ANY POSITION WHEN THE SWITCH IS TURNED OFF 1. Open park circuit. 1. Check park switch by disconnecting the wire connector and apply battery voltage to pin 4. Place a jumper wire from pin 2 to pin 3 and then to an external ground. Replace motor if motor does not park.
MOTOR WILL NOT STOP WHEN THE SWITCH IS TURNED OFF 1. Faulty switch. 1. Check switch in low, high and intermittent position.
2. Lack of dynamic brake on wet glass. 2. Ensure park switch has clean ground.
WIPER BLADES SLAP AGAINST COWL SCREEN OR WINDOW MOLDINGS. 1. Wiper arms are parked incorrectly. 1. Park wiper arms. Refer to wiper arm adjustment.
BLADES CHATTER 1. Foreign substance such as polish on glass or blades. 1. Clean glass and blade element with non-abrasive cleaner.
2. Arms twisted, blade at wrong angle on glass. 2. Replace arm.
3. Blade structure bent. 3. Replace blade.
4. Blade element has permanent set. 4. Replace blade.
WIPER KNOCK AT REVERSAL 1. Linkage bushings worn. 1. Replace worn link. Refer to wiper linkage removal and installation.
2. Armature endplay in motor. 2. Replace wiper motor. Refer to wiper motor removal and installation.
WIPER MOTOR WILL NOT RUN 1. Blown fuse. 1. Replace fuse, and run system.
2. New fuse blows. 2. Check for short in wiring or switch.
3. New fuse blows. 3. Replace fuse, remove motor connector, turn switch on, fuse does not blow, replace motor.
4. No voltage at motor. 4. Check switch and wiring harness. Refer to wiring diagrams.
5. Poor ground. 5. Repair ground wire connection as necessary.




08 - Electrical/8R - Wipers/Washers/Diagnosis and Testing

DIAGNOSIS AND TESTING - FRONT WIPER SYSTEM

The windshield wiper system operates in several modes:

•Low and high speed normal wipe
•Speed sensitive intermittent wipe
•Wipe after wash
•Park (switch OFF)

The windshield wiper circuits are continuously monitored and controlled by the Body Control Module (BCM). If a problem occurs in the electronic components, wiring, switch (except integral motor park switch) and wiper motor a Diagnostic Trouble Code (DTC) will be stored in the BCM memory. DTC's can be retrieved using a scan tool. Refer to the appropriate body diagnostic information for DTC descriptions and retrieval information.

The windshield wiper park switch and circuit is monitored by the BCM. The park switch and circuit can be tested using the Wiper System Diagnosis table.

 

Thanks for the info. It turned out to be the ipm (fuse box). I installed one from an 05.

 

Good Job!