FRONT SYSTEM
System uses a permanent magnet, 2-speed, positive-park wiper motor. Motor drives a crank arm, which is attached to individual transmission links for left and right wipers. Wiper motor is sealed and not serviceable (except for circuit board and terminal assembly). Washer pump motor is mounted on fluid reservoir.
System is a pulse (delay) system. Pulse system has high and low speeds and a delay function that causes the wipers to sweep once with a delay interval between sweeps. Variable resistor in wiper switch adjusts amount of current to a delay module attached to wiper motor. Delay module controls current to wiper motor.
REAR SYSTEM
System has a one-speed, permanent magnet, depressed park motor, with a pulse (delay) feature that causes the wipers to sweep once with a delay interval between sweeps. Variable resistor in wiper switch adjusts amount of current to delay module in wiper motor. Delay module controls current to wiper motor. Wiper motor is sealed and not serviceable (except for controller replacement).
SERVICING
Repairs to wiper assembly are limited to switch, plus external parts, crank arm, spacer and plastic seal, and output shaft seal. Front wiper motor circuit board may be replaced without removing motor assembly. Rear wiper motor controller may be replaced after removing motor assembly. Wiper motors are sealed units and can only be serviced by replacement.
SYSTEM TESTS
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION Section before disconnecting battery. |
| CAUTION | If front wiper/washer system works intermittently, or is completely inoperative, refer to SPECIAL POLICY ADJUSTMENT - WINDSHIELD WIPER MOTOR FAILURES Service Campaign Bulletin 02054A dated May 9, 2003 prior to making repairs. |
Note. Ensure FRT-WPR fuse is okay before testing system. Front wiper switch connector is located near base of steering column.
Wipers Inoperative In All Modes
| CAUTION | If front wiper/washer system works intermittently, or is completely inoperative, refer to SPECIAL POLICY ADJUSTMENT - WINDSHIELD WIPER MOTOR FAILURES Service Campaign Bulletin 02054A dated May 9, 2003 prior to making repairs. |
- Disconnect wiper switch connector. Connect test light between ground and Yellow wire terminal of wiper switch connector. (Схема №1) If test light does not come on, repair open in Yellow wire between wiper switch and fuse block.
- If test light comes on, reconnect wiper switch connector. Move wiper switch to LO position. Connect test light between ground and Brown wire terminal of wiper switch connector.
- If test light does not come on, replace wiper switch. If test light comes on, check for open in Brown wire between wiper switch and wiper motor. If Brown wire circuit is okay, check for open in Black wire between wiper motor and ground.
Wipers Run At Low Speed Only
- Disconnect wiper motor connector. Turn ignition to ACC position and wiper switch to HI position. Connect test light between ground and Purple wire terminal of wiper motor connector. (Схема №1) I f test light comes on, replace wiper motor.
- If test light does not come on, connect test light between ground and Purple wire terminal of wiper switch connector. If test light does not come on, replace wiper switch. If test light comes on, repair open in Purple wire between wiper switch and wiper motor.
Wipers Run At High Speed Only
- Disconnect wiper motor connector. Turn ignition to ACC position and wiper switch to LO position. Connect test light between ground and Brown wire terminal of wiper motor connector. (Схема №1) If test light comes on, replace wiper motor.
- If test light does not come on, connect test light between ground and Brown wire terminal of wiper switch connector. If test light does not come on, replace wiper switch. If test light comes on, repair open in Brown wire between wiper switch and wiper motor.
Wiper Motor Runs Continuously
- Disconnect wiper motor connector. Turn ignition to ACC position and wiper switch to LO position. Connect test light between ground and Brown wire terminal of wiper motor connector. (Схема №1) If test light does not come on, repair open in Brown wire between wiper motor and wiper switch.
- If test light comes on, move wiper switch to HI position. Connect test light between ground and Purple wire terminal of wiper motor connector. If test light does not come on, repair open in Purple wire between wiper motor and wiper switch.
- If test light comes on, connect test light between ground and Yellow wire terminal of wiper motor connector. If test light does not come on, repair open in Yellow wire between ground and wiper motor. If test light comes on, replace wiper motor.
No Delay In Pulse (Delay) Mode
- Disconnect wiper switch connector. Place wiper switch in LO position. Connect ohmmeter between Brown and Yellow wire terminals of wiper switch connector. If ohmmeter reads decidedly less than or greater than 680 ohms, replace wiper switch.
- If ohmmeter reads about 680 ohms, move wiper switch through delay range to maximum delay position. If ohmmeter readings do not increase in steps to about 450 k/ohms, replace wiper switch. If ohmmeter readings increase in steps to about 450 k/ohms, check for open in Brown or Yellow wire between wiper switch and wiper motor. (Схема №1) If wires are okay, replace wiper switch.
Washer Inoperative
- Disconnect washer pump motor connector. Turn ignition switch to ACC position and wiper switch to WASH position. Connect test light between ground and Red wire terminal of washer pump motor connector. (Схема №1) If test light comes on, go to next step. If test light does not come on, go to step 3).
- Connect test light between Red and Black wire terminals of washer pump motor connector. If test light comes on, replace washer pump motor. If test light does not come on, repair open in Black wire between ground and washer pump motor.
- Connect test light between ground and Brown wire terminal of wiper motor connector. If test light comes on, replace wiper motor. If test light does not come on, check for open in Brown wire between wiper motor and wiper switch. If wire is okay, replace wiper switch.
Note. Ensure RR-WPR fuse is okay before testing system.
Wiper Inoperative In All Modes
- Turn ignition switch to ACC or RUN position. Connect test light between ground and White wire terminal of wiper switch connector. (Схема №2) If test light does not come on, repair open in White wire between wiper switch and fuse block.
- If test light comes on, connect test light between ground and Gray wire terminal of wiper motor connector with wiper switch in LO position, and Light Blue wire terminal with switch in HI position.
- If test light does not come on at one or both wires, repair open in Gray or Light Blue wire between wiper motor and wiper switch. If Gray and Light Blue wire circuits are okay, replace wiper switch.
- If test light comes on at both wires, connect test light from battery positive to Black wire terminal of wiper motor connector. If test light comes on, replace wiper motor. If test light does not come on, repair open in Black wire between wiper motor and ground.
Wiper Runs At Low Speed Only
- Turn ignition switch to ACC or RUN position. Turn wiper switch to HI position. Connect test light between ground and Dark Green wire terminal of wiper switch connector. (Схема №2) If test light does not come on, replace wiper switch. If test light comes on, disconnect wiper motor connector.
- Connect test light between ground and Light Blue wire terminal of wiper motor connector. Move wiper switch to HI position. If test light comes on, replace wiper motor. If test light does not come on, repair open in Light Blue wire between wiper motor and wiper switch.
Wiper Runs At High Speed Only
- Turn ignition switch to ACC or RUN position. Turn wiper switch to LO position. Connect test light between ground and Gray wire terminal of wiper switch connector. (Схема №2) If test light does not come on, replace wiper switch. If test light comes on, disconnect wiper motor connector. Turn wiper switch to LO position.
- Connect test light between ground and Gray wire terminal of wiper motor connector. If test light comes on, replace wiper motor. If test light does not come on, repair open in Gray wire between wiper motor and wiper switch.
Wiper Motor Runs Continuously Or Will Not Park
- Turn ignition switch to ACC or RUN position. Turn off wiper switch. Connect test light between ground and Gray wire terminal of wiper motor connector. (Схема №2) If test light comes on, replace wiper switch.
- If test light does not come on, connect test light between battery positive and Black wire terminal of wiper motor connector. If test light comes on, replace wiper motor. If test light does not come on, repair open in Black wire between wiper motor and ground.
- Turn ignition switch to ACC or RUN position. Turn wiper switch to WASH position. Connect test light between ground and Dark Green wire terminal of wiper switch. (Схема №2) If test light does not come on, replace wiper switch.
- If test light comes on, disconnect washer pump motor connector. Connect test light between ground and Dark Green wire terminal of washer pump motor connector. If test light does not come on, repair open in Dark Green wire between washer pump motor and wiper switch.
- If test light comes on, connect test light between Dark Green and Black wire terminals of washer pump motor connector. If test light comes on, replace washer pump motor. If test light does not come on, repair open in Black wire between washer pump motor and ground.
REMOVAL & INSTALLATION
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION Section before disconnecting battery. |
Removal & Installation (Front)
Mark park position of wiper arms with tape to aid in reinstallation. Disconnect washer hose. Lift wiper arm assembly and pull retaining latch. Remove wiper arm assembly from transmission drive shaft. To install, reverse removal procedure. Check wiper system operation.
Removal & Installation (Rear)
Disconnect washer hose. Lift wiper arm assembly and pull retaining latch. Remove wiper arm assembly from wiper motor drive shaft. Install wiper arm onto serrated wiper motor drive shaft in such a position where wiper blade will rest in a proper parked position. Lift wiper arm extension and push in retaining latch. Install washer hose. Check wiper operation.
WIPER SWITCH
| WARNING | Before any repairs are performed, disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM IN AIR BAG RESTRAINT SYSTEM article. All SIR system connectors use Connector Position Assurance (CPA) clips to ensure connector retention. Even if system is disconnected, use caution when working near steering column. |
- Turn steering wheel to straight-ahead position. Disconnect negative battery cable. Remove inflator module. Remove horn contact wire from steering column.
- Remove steering wheel hexagon locking nut. Using a puller, remove steering wheel. DO NOT install puller bolts too far as damage to coil assembly can result.
- Remove lower column cover screws. Pivot lower column cover at rear, swing down and push to release. Remove upper column cover. Remove multifunction switch assembly screws. Disconnect switch connector. Remove wiring protector covers.
- Remove switch assembly and wiring harness from column. To install, reverse removal procedure. Tighten steering wheel nut to 30 ft. lbs. (41 N.m).
Disconnect negative battery cable. Remove instrument panel bezel. Disconnect switch electrical connector. Remove switch. To install, reverse removal procedure.
WIPER MOTOR
| CAUTION | Before replacing wiper motor and/or wiper motor circuit board, refer to SPECIAL POLICY ADJUSTMENT - WINDSHIELD WIPER MOTOR FAILURES Service Campaign Bulletin 02054A dated May 9, 2003. |
Note. It is not necessary to remove wiper motor to remove circuit board and terminal assembly.
- Disconnect negative battery cable. Remove wiper arms. Remove cowl vent grille. Disconnect wiper motor electrical connector. Loosen drive link bracket nuts where motor crank arm is attached to transmission arm. DO NOT remove crank arm from motor.
- Separate transmission arm from motor crank arm. Remove wiper motor mounting screws. Remove wiper motor. To install, reverse removal procedure. Lubricate contact point of motor crank arm and transmission arm before connecting components. Tighten wiper motor mounting screws to 62 INCH lbs. (7 N.m).
Disconnect negative battery cable. Remove wiper arm. Remove motor cover. Disconnect electrical connector. Remove bolt, nut, spacer and washer from motor. Remove motor. To install, reverse removal procedure. Tighten wiper motor mounting bolt/nut to 53 INCH lbs. (6 N.m).
