1997 Lincoln Town Car Logo
Posted on Feb 05, 2011
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I replaced the wiper control module and while I did that the wipers were in the up position. Now the new module is in and they are operating but come to rest in the upright position. Do I need to remove the wipers and reset them?

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Duane Wong

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  • Lincoln Master 6,826 Answers
  • Posted on Feb 05, 2011
Duane Wong
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Perhaps, you could remove the arms and reset them, but, I am curious, did you replace the 'windshield wiper motor?' I was always taught that if the wiper arms did not come to rest in the right resting place, that the wiper motor was at fault.

Good luck on this repair.

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  • Posted on Jan 29, 2013
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The arm that is attached to the motor may have been installed 180 degrees off

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david balderston

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  • Posted on Feb 05, 2011
david balderston
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Would suggest putting wipers in off position the reinstalling module

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2answers

2002 Corvette Wipers wont shut off

If the windshield wipers on your 2002 Corvette won't shut off, it could indicate a problem with the wiper control switch or a malfunction in the wiper motor circuit. Here are some troubleshooting steps you can try:
  1. Check the wiper control switch: Ensure that the wiper control switch is in the "Off" position. Sometimes, the switch can get stuck or malfunction, causing the wipers to stay on. Try moving the switch back and forth a few times to see if that resolves the issue.
  2. Inspect the wiper motor relay: The wiper motor relay controls the power supply to the wiper motor. If the relay gets stuck or fails, it can cause the wipers to stay on. Locate the wiper motor relay in the fuse box or relay panel and try replacing it with a known working relay of the same type to see if that resolves the issue.
  3. Check the wiper motor circuit: The wiper motor circuit may have a short or an electrical problem that is keeping the wipers engaged. Inspect the wiring harness connected to the wiper motor for any signs of damage or loose connections. Use a multimeter to check for continuity and proper voltage in the circuit. If you are not familiar with automotive electrical systems, it is advisable to consult a professional technician or a qualified electrician.
  4. Disconnect the battery: As a temporary solution, you can disconnect the negative terminal of the car battery to stop the wipers from running. This will disable other electrical components as well, so it's recommended as a temporary measure until the issue can be properly diagnosed and repaired.
0helpful
1answer

2005 Tahoe rear windshield wiper inoperative in dash panel position 1or2

Rear Wiper/Washer System Components
The rear wiper/washer system consists of the following components:
• Rear wiper/washer switch
• Window wiper module-rear
• Window washer pump-rear
• RR WIPER 15A fuse
• RR WPRB 25A fuse
Rear Wiper/Washer System Operation
The rear wiper module controls rear wiper motor operation. Battery voltage supplied to the module is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear window wiper and washer switch signal circuits. In wiper switch positions 1 and 2 the wiper switch signal circuit voltage level to the wiper motor module determines the wiper motor delay interval. The rear window washer pump supply voltage circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear window washer switch signal circuit is used as a wash signal to the rear wiper motor module to operate the wipers during the rear wash operation.


Did you replace the rear wiper module ?
0helpful
2answers

Hi have an 07 trailblazer. The rear wiper motor only works if you unplug it and then plug it back in.

Sounds like a wiring problem:
1. One of the wires attached to a pin in the connector attached to the wiring at the motor (not on the motor) may be corroded or have come loose, making intermittent contact, or
2. One of the wires in the harness between the motor and the switch is crimped somewhere around the tailgate and is intermittently opening, or
3. A bad motor ground wire connection at the tailgate.
1helpful
4answers

I have a faulty BCM on my '05 Trailblazer LT, (rear wipers don't function & seat adjustment memory). Can I fit a replacement BCM from a scrapped vehicle without having to 'flash'.

How do you know the BCM is at fault ? Did you hook up a factory or someother type professional scan tool an check for DTC'S - diagnostic trouble codes ? Did you view how these system work in factory sevice repair information ? Did you use a wiring diagram an DVOM - digital volt ohmmeter an test electrical circuits ?

The BCM has nothing to do with the memory seats .
Memory Seat System Components
The memory seat system consists of the following components:
• Power Seat Switch
• Seat Horizontal Motor
• Seat Front Vertical Motor
• Seat Rear Vertical Motor
• Seat Recliner Motor
• Driver Seat Module
• Memory Seat Switch
Memory Seat System Description
Battery voltage is supplied to the driver seat module through the power seat circuit breaker. The driver seat module supplies the seat adjuster switch assembly with a battery positive reference voltage. While the seat adjuster switches are in an inactive state the switch contacts are closed to the adjuster switch ground circuit. When a seat adjuster switch is pressed to an active state the switch contact is closed to the reference voltage circuit. Battery voltage on a switch signal circuit indicates to the driver seat module the switch status is active. Each seat adjuster motor is controlled by the driver seat module through 2 motor control circuits. While the seat adjuster motors are in an inactive state the motor control circuits are closed to ground circuit contacts within the driver seat module. The driver seat module operates the seat adjuster motors by switching one of a motor's control circuits to battery voltage. The seat adjuster motors are bidirectional and the direction of adjuster motor rotation is determined by which of the adjuster motor control circuits is switched to battery voltage while the other remains grounded.


Memory Set/Recall Operation
The driver seat adjuster motors are equipped with potentiometer type position sensors used by the driver seat module to determine the seat position. The position sensors are supplied with 5-volt reference and ground circuits from the driver seat module. The position sensor signal circuits are referenced from ground within the driver seat module. The signal circuit voltage levels monitored by the driver seat module range from 0.39 - 4.58 volts and are determined by the wiper locations on the resistors within the motor position sensors. The position sensor circuit voltage levels are used by the driver seat module to determine the seat position when storing or recalling memory position settings.
The memory recall switch assembly on the driver's door provides inputs to the driver door module. Battery voltage is supplied to the memory recall switch assembly from the driver door module. When a memory recall 1, 2, or EXIT switch is pressed, the switch contacts close the appropriate switch signal circuit to the battery voltage supply circuit within the memory recall switch assembly. When the driver door module receives active switch signals from the memory recall switch assembly, the appropriate commands are sent to the driver seat module using the Class 2 Serial Data circuit.
Memory seat recall operation is allowed only with the transmission selector lever in the PARK position while the ignition is on. The transmission selector lever position data is provided to the driver seat module by a message through the Class 2 Serial Data circuit.
© 2021 General Motors Corporation. All rights reserved


Rear Wiper/Washer System Components
The rear wiper/washer system consists of the following components:
• Rear window wiper motor
• Rear washer pump
• Rear wash relay
• Rear wiper/washer switch
• RR WIPER Circuit Breaker 15A / ENDGLASS REG Circuit Breaker 30A
• WASH 20A fuse
• Body control module (BCM)
• Liftgate control module (LGM) / End gate module (EGM)


Rear Wiper Operation (with LGM)
The rear window wiper/washer switch is an input to the BCM. The requested rear wiper mode is sent to the LGM by the BCM, as a message on the serial data circuit. The rear window wiper motor is controlled by the LGM. The switch power circuit to the rear wiper/washer switch is a 12-volt reference supplied by the BCM during ignition on, accessory or RAP power modes. The rear wiper/washer switch is composed from a series of resistors and the switch position is determined by the voltage of the rear wiper/washer switch signal circuit to the BCM. The rear wiper/washer switch has continuity at all times and the BCM expects a rear wiper/washer switch signal voltage in all switch positions including OFF. The rear wiper motor is supplied battery positive voltage and ground. The LGM controls rear wiper motor operation through the rear window motor speed signal circuit. The rear window motor speed signal circuit is supplied a battery positive reference voltage by the rear window wiper motor module and is pulse width modulated to ground by the LGM. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode. The liftglass and liftgate ajar switches are inputs to the LGM and must be in an inactive state in order for rear wiper washer system operation to be enabled. When an ajar switch is active the LGM suspends wiper motor operation directly and sends the ajar switch status messages over the serial data circuit enabling the BCM to suspend washer pump operation.


Rear Wiper Operation (with EGM)
The rear window wiper/washer switch is an input to the BCM. The requested rear wiper mode is sent to the EGM by the BCM, as a message on the serial data circuit. The rear window wiper motor is controlled by the EGM. The switch power circuit to the rear wiper/washer switch is a 12-volt reference supplied by the BCM. The rear wiper/washer switch is composed from a series of resistors and the switch position is determined by the voltage of the rear wiper/washer switch signal circuit to the BCM. The rear wiper/washer switch has continuity at all times and the BCM expects a rear wiper/washer switch signal voltage in all switch positions including OFF. The rear wiper motor is supplied battery positive voltage and ground. The EGM controls rear wiper motor operation through the rear window motor speed signal circuit. The rear window motor speed signal circuit is supplied a battery positive reference voltage by the rear window wiper motor module and is pulse width modulated to ground by the EGM. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode. The rear window motor park signal circuit provides position status of the rear wiper to the EGM.
The rear wiper and washer operation is allowed if the following conditions are true:
• Power mode is run or accessory.
• Lower left ajar switch is closed.
• Upper left ajar switch is closed.
• Upper right ajar switch is closed.
• Upper left dome switch is closed.
• The end gate window is fully closed.
• No end gate window express down, up, or down is requested.
• No gate swing open or drop open is requested.
If rear wiper/washer operation is attempted and the end gate window is open the driver information center (DIC) displays "Tailgate Glass Down". If the rear wiper is not in the park position and an attempt to open end gate window is done, the DIC displays "Rear Wiper Obstruction".


Your best bet , take it to a qualified repair shop because you have no idea how these systems work .
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2001 Lincoln Town car ...wipers at times are slow on high and regular speeds and even stop working altogether.Have new battery 12/17 and wiper mot3/18. Battery is 650cca and on third motor in 1.5 years....

Have a qualified repair shop check it out . Electronic module involved , WCM - wiper control module . May have code's stored . You have no clue as to how it works.

The windshield wipers are controlled by the wiper control module and the driver-operated multi-function switch on the steering column, with the ignition switch in RUN or ACC position.
There are four modes of wiper operation: OFF position, the wipers move to and stay in the park position; Interval position, the wiper control module causes the wipers to cycle, separated by pauses, pause time length being determined by switch location; LO position, the wipers will operate at low speed continuously; HI position, the wipers will operate at high speed continuously.
The windshield washers are controlled by pressing inward on the wiper switch end of the multi-function switch. The washers will operate as long as the switch is depressed. If the wipers are in the OFF or Interval operating mode, the wipers will begin in LO speed and the washer pump will pump fluid from the reservoir to the nozzles. When the switch is released, the wipers will complete three cycles and then return to their previous setting. In LO or HI mode, no change in wiper operation will occur during washer operation.
The washer fluid level sensor is in the windshield washer reservoir (17618) and is monitored by the hybrid electronic instrument cluster (HEC) and displays a WASHER message when the fluid level is low. The washer fluid level sensor and windshield washer reservoir are replaced as an assembly.

  • The Low Wiper Speed Does Not Operate Properly
  • Multi-function switch.
  • Wiper motor.
  • Circuitry.
  • Wiper control module.
  • GO to Pinpoint Test C .
  • The High Wiper Speed Does Not Operate Properly
  • Multi-function switch.
  • Wiper motor.
  • Circuitry.
  • Wiper control module.
  • GO to Pinpoint Test D .
0helpful
1answer

Where can I find the fuse for the wipers for my 2002 Lincoln town car

Highly doubtful it being a blown fuse . Fuse's don't just blow , short circuit to ground or high current draw . Faulty component , wiper motor , wiper control module more likely . Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size . Under system click on body & accessories . then under subsystem click on wiper / washer , Click the search button ,then the blue link . Looking at the diagram i see the wiper switch is a input to the wiper control module .

The windshield wipers are controlled by the wiper control module and the driver-operated multi-function switch on the steering column, with the ignition switch in RUN or ACC position.
There are four modes of wiper operation: OFF position, the wipers move to and stay in the park position; Interval position, the wiper control module causes the wipers to cycle, separated by pauses, pause time length being determined by switch location; LO position, the wipers will operate at low speed continuously; HI position, the wipers will operate at high speed continuously.
The windshield washers are controlled by pressing inward on the wiper switch end of the multi-function switch. The washers will operate as long as the switch is depressed. If the wipers are in the OFF or Interval operating mode, the wipers will begin in LO speed and the washer pump will pump fluid from the reservoir to the nozzles. When the switch is released, the wipers will complete three cycles and then return to their previous setting. In LO or HI mode, no change in wiper operation will occur during washer operation.
The washer fluid level sensor is in the windshield washer reservoir (17618) and is monitored by the hybrid electronic instrument cluster (HEC) and displays a WASHER message when the fluid level is low. The washer fluid level sensor and windshield washer reservoir are replaced as an assembly.

  • The Wipers are Inoperative
  • Fuse.
  • Wiper motor.
  • Multi-function switch.
  • Circuitry.
  • Wiper control module.
  • GO to Pinpoint Test B .

PINPOINT TEST B: THE WIPERS ARE INOPERATIVE CONDITIONS DETAILS/RESULTS/ACTIONS B1 CHECK FUSE JUNCTION PANEL FUSE 16 (30A)
Fuse 16 (30A)

  • Is the fuse OK?
Yes GO to B2 .

No REPLACE the fuse. TEST the system for normal operation. If the fuse fails again, CHECK for a short to ground. REPAIR as necessary. B2 CHECK FOR VOLTAGE TO THE WIPER CONTROL MODULE - CIRCUIT 65 (DG)
Wiper Control Module C294
Measure the voltage between wiper control module C294-2, circuit 65 (DG), and ground; and between wiper control module C294-11, circuit 65 (DG), and ground.
  • Is the voltage greater than 10 volts?
Yes GO to B3 .

No REPAIR circuit 65 (DG). TEST the system for normal operation. B3 CHECK CIRCUIT 57 (BK) FOR OPEN Measure the resistance between wiper control module C294-3, circuit 57 (BK), and ground; and between wiper control module C294-5, circuit 57 (BK), and ground.
  • Are the resistances less than 5 ohms?
Yes GO to B4 .

No REPAIR circuit 57 (BK). TEST the system for normal operation. B4 CHECK THE MULTI-FUNCTION SWITCH
Multi-Function Switch
Check the multi-function switch; refer to Section 211-05 .
  • Is the multi-function switch OK?
Yes GO to B5 .

No REPLACE the multi-function switch; REFER to Section 211-05 . TEST the system for normal operation. B5 CHECK CIRCUIT 993 (BR/W) FOR OPEN Measure the resistance between multi-function switch C269-4, circuit 993 (BR/W), and wiper control module C294-7, circuit 993 (BR/W).
  • Is the resistance less than 5 ohms?
Yes GO to B6 .

No REPAIR circuit 993 (BR/W). TEST the system for normal operation. B6 CHECK CIRCUIT 589 (O) FOR OPEN Measure the resistance between multi-function switch C269-1, circuit 589 (O), and wiper control module C294-1, circuit 589 (O).
  • Is the resistance less than 5 ohms?
Yes GO to B7 .

No REPAIR circuit 589 (O). TEST the system for normal operation. B7 CHECK THE WIPER CONTROL MODULE OUTPUT FOR VOLTAGE
Wiper Control Module C294

Wiper Motor C152
Turn the multi-function switch to the HI position. Measure the voltage between wiper motor C152-4, circuit 57 (BK), and wiper motor C152-3, circuit 56 (DB/O).
  • Is the voltage greater than 10 volts?
Yes REPLACE the wiper motor; REFER to Motor-Windshield Wiper . TEST the system for normal operation.

No GO to B8 . B8 CHECK CIRCUIT 57 (BK) FOR OPEN Measure the resistance between wiper motor C152-4, circuit 57 (BK), and ground.
  • Is the resistance less than 5 ohms?
Yes REPLACE the wiper control module; REFER to Module-Windshield Wiper . TEST the system for normal operation.

No REPAIR circuit 57 (BK). TEST the system for normal operation.
0helpful
2answers

Rear wiper blade won't. irk on 2002 hmm envoy

Did you check the fuse ? Do you hear the wiper motor running ? If the fuse is good you would need to test the electrical circuit for the wiper motor ,viewing a wiring diagram an then use a DVOM - digital volt ohmmeter to test
What body type is it ? Vin 6 or 3 could have a circuit breaker for power supply or fuse ,both are located in the rear fuse block .

Rear Wiper/Washer System Components
The rear wiper/washer system consists of the following components:
• Rear window wiper motor
• Rear window washer fluid pump
• Rear wash relay
• Rear window wiper/washer switch
• RR wiper 15A circuit breaker
• WASH 20A fuse
Rear Wiper/Washer System Controls
• Body control module (BCM)
• Liftgate control module (LGM)
• Rear wiper/washer switch

Here is how it is controlled

Rear Wiper/Washer System Operation
The rear window wiper/washer switch is an input to the BCM. The requested rear wiper mode is sent to the liftgate control module (LGM) by the BCM as a message on the serial data circuit, and the rear window wiper motor is controlled by the LGM. The switch power circuit to the rear wiper/washer switch is a 12-volt reference supplied by the BCM during ignition on, accessory or RAP power modes. The rear wiper/washer switch is a series of resistors and the switch position is determined by the voltage of the rear wiper/washer switch signal circuit to the BCM. The rear wiper/washer switch has continuity at all times and the BCM expects a rear wiper/washer switch signal voltage in all switch positions including OFF. The rear wiper motor is supplied battery positive voltage and ground. The LGM controls rear wiper motor operation through the rear wiper motor control circuit. The rear wiper motor control circuit is supplied a battery positive reference voltage by the rear wiper motor module and is pulse width modulated to ground by the LGM. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode. The liftglass and liftgate ajar switches are inputs to the LGM and must be in an inactive state in order for rear wiper washer system operation to be enabled. When an ajar switch is active the LGM suspends wiper motor operation directly and sends the ajar switch status messages over the serial data circuit enabling the BCM to suspend washer pump operation. The rear window washer pump is controlled by the BCM through the rear washer relay. Battery positive voltage is supplied to the coil and switch sides of the rear washer relay. When the rear window wash request is active the BCM energizes the relay by grounding the relay coil through the rear washer relay control circuit. When the relay is energized battery positive voltage to the relay switch is supplied to the washer pump control circuit.

Your best bet mite be to have a qualified repair shop check for codes in the BCM or LGM
--------------------------------------------------------------------------------
DTC B1017 or B3970

The rear wiper motor is supplied battery positive voltage and ground. The liftgate control module controls rear wiper motor operation through the rear wiper motor control circuit. The rear wiper motor control circuit is supplied a battery positive reference voltage by the rear wiper motor module and is pulse width modulated to ground by the liftgate control module. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode.
0helpful
1answer

2002 trialblazer rear window wiper inop. changed switch and motor. no power to motor. cannot find relay nor fuse

There are something's involved that you are not aware of , or familiar with . Electronic control modules .
Rear Wiper/Washer System Controls
• Body control module (BCM)
• Liftgate control module (LGM)
• Rear wiper/washer switch
Do you know what a serial data network is ?
Rear Wiper/Washer System Operation
The rear window wiper/washer switch is an input to the BCM. The requested rear wiper mode is sent to the liftgate control module (LGM) by the BCM as a message on the serial data circuit, and the rear window wiper motor is controlled by the LGM. The switch power circuit to the rear wiper/washer switch is a 12-volt reference supplied by the BCM during ignition on, accessory or RAP power modes. The rear wiper/washer switch is a series of resistors and the switch position is determined by the voltage of the rear wiper/washer switch signal circuit to the BCM. The rear wiper/washer switch has continuity at all times and the BCM expects a rear wiper/washer switch signal voltage in all switch positions including OFF. The rear wiper motor is supplied battery positive voltage and ground. The LGM controls rear wiper motor operation through the rear wiper motor control circuit. The rear wiper motor control circuit is supplied a battery positive reference voltage by the rear wiper motor module and is pulse width modulated to ground by the LGM. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode. The liftglass and liftgate ajar switches are inputs to the LGM and must be in an inactive state in order for rear wiper washer system operation to be enabled. When an ajar switch is active the LGM suspends wiper motor operation directly and sends the ajar switch status messages over the serial data circuit enabling the BCM to suspend washer pump operation. The rear window washer pump is controlled by the BCM through the rear washer relay. Battery positive voltage is supplied to the coil and switch sides of the rear washer relay. When the rear window wash request is active the BCM energizes the relay by grounding the relay coil through the rear washer relay control circuit. When the relay is energized battery positive voltage to the relay switch is supplied to the washer pump control circuit.

Your best bet , take it to a qualified repair shop and have it checked for DTC'S - diagnostic trouble codes .
DTC B1017 or B3970
The rear wiper motor is supplied battery positive voltage and ground. The liftgate control module controls rear wiper motor operation through the rear wiper motor control circuit. The rear wiper motor control circuit is supplied a battery positive reference voltage by the rear wiper motor module and is pulse width modulated to ground by the liftgate control module. The duty cycle of the pulse width modulation determines the rear wiper motor operating mode.
DTC B3799

2
Turn the ignition ON.
Operate the rear wiper switch through all the switch positions.
Does the rear window wiper operate normally?
--
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Install a scan tool.
Display the liftgate control module data list.
Observe the following parameters while operating the respective switches. Refer to Scan Tool Data List for typical values.
• Liftgate Ajar Switch
• Liftglass Ajar Switch
Did the scan tool indicate the correct switch positions?
--
Go to Step 4
Go to Courtesy Lamps Inoperative in Lighting Systems
4
Observe the requested rear wiper parameter in LGM data list.
Operate the rear wiper switch through all the switch positions.
Does the scan tool indicate the correct requested rear wiper parameter in relation to the switch position?
--
Go to Step 5
Go to Step 6
0helpful
1answer

Winsheild wiper will not work

The wiper control module is probably at fault ,without test that is just a guess . The wiper/washer switch is a input to the wiper control module. Do you know anything about automotive electronics an electrical systems ?
  • The Wipers are Inoperative
  • Fuse.
  • Wiper motor.
  • Multi-function switch.
  • Circuitry.
  • Wiper control module.
  • GO to Pinpoint Test B .

Voltage drop testing the power an ground circuits for the wiper control module would be a good place to start . Do you know how to test electrical circuits with a volt meter ?
PINPOINT TEST B: THE WIPERS ARE INOPERATIVE CONDITIONS DETAILS/RESULTS/ACTIONS B1 CHECK FUSE JUNCTION PANEL FUSE 16 (30A)
Fuse 16 (30A)

  • Is the fuse OK?
Yes GO to B2 .

No REPLACE the fuse. TEST the system for normal operation. If the fuse fails again, CHECK for a short to ground. REPAIR as necessary. B2 CHECK FOR VOLTAGE TO THE WIPER CONTROL MODULE - CIRCUIT 65 (DG)
Wiper Control Module C294
Measure the voltage between wiper control module C294-2, circuit 65 (DG), and ground; and between wiper control module C294-11, circuit 65 (DG), and ground.
  • Is the voltage greater than 10 volts?
Yes GO to B3 .

No REPAIR circuit 65 (DG). TEST the system for normal operation. B3 CHECK CIRCUIT 57 (BK) FOR OPEN Measure the resistance between wiper control module C294-3, circuit 57 (BK), and ground; and between wiper control module C294-5, circuit 57 (BK), and ground.
  • Are the resistances less than 5 ohms?
Yes GO to B4 .

No REPAIR circuit 57 (BK). TEST the system for normal operation. B4 CHECK THE MULTI-FUNCTION SWITCH
Multi-Function Switch
Check the multi-function switch; refer to Section 211-05 .
  • Is the multi-function switch OK?
Yes GO to B5 .

No REPLACE the multi-function switch; REFER to Section 211-05 . TEST the system for normal operation. B5 CHECK CIRCUIT 993 (BR/W) FOR OPEN Measure the resistance between multi-function switch C269-4, circuit 993 (BR/W), and wiper control module C294-7, circuit 993 (BR/W).
  • Is the resistance less than 5 ohms?
Yes GO to B6 .

No REPAIR circuit 993 (BR/W). TEST the system for normal operation. B6 CHECK CIRCUIT 589 (O) FOR OPEN Measure the resistance between multi-function switch C269-1, circuit 589 (O), and wiper control module C294-1, circuit 589 (O).
  • Is the resistance less than 5 ohms?
Yes GO to B7 .

No REPAIR circuit 589 (O). TEST the system for normal operation. B7 CHECK THE WIPER CONTROL MODULE OUTPUT FOR VOLTAGE
Wiper Control Module C294

Wiper Motor C152
Turn the multi-function switch to the HI position. Measure the voltage between wiper motor C152-4, circuit 57 (BK), and wiper motor C152-3, circuit 56 (DB/O).
  • Is the voltage greater than 10 volts?
Yes REPLACE the wiper motor; REFER to Motor-Windshield Wiper . TEST the system for normal operation.

No GO to B8 . B8 CHECK CIRCUIT 57 (BK) FOR OPEN Measure the resistance between wiper motor C152-4, circuit 57 (BK), and ground.
  • Is the resistance less than 5 ohms?
Yes REPLACE the wiper control module; REFER to Module-Windshield Wiper . TEST the system for normal operation.

No REPAIR circuit 57 (BK). TEST the system for normal operation.
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