Question about 1998 Chevrolet Blazer

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1998 Chevrolet Blazer LT - Windshield Motor or Switch

My windshield wipers are completely dead. No High, Low or variable speed.

There was no warning they just stopped completely.

How can I tell if it is the switch or if it is the wiper motor?

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  • Anonymous Mar 17, 2014

    2005 General Motors Envoy windshield wiper and washer do not work on front variable speed switch also doesn't work

  • Anonymous Mar 20, 2014

    WIPERS WILL NOT WORK ON SLOW SPEED. HOW DO I REPLACE THE SWITCH?

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  • 87 Answers

If it gave no warning go with the switch its cheap and easy to replace with a couple hand tools

Posted on Jun 08, 2008

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2 Answers

My wiper motor only works on high and stops were ever the wipers are at. And the washer motor doest #39;t work


Low Speed Windshield Wipers
Low speed is activated when the multifunction switch supplies a specific ground to the speed inputs of the windshield wiper motor module. The windshield wiper motor module then supplies ground to only the windshield wiper run/park relay coil, activating it. When the windshield wiper run/park relay is activated, the deactivated high/low relay connects voltage to the windshield wiper motor low input activating the wiper motor. The windshield wiper motor module continues to operate the windshield wiper motor in the same manner as in high speed, but in low speed with the wiper motor connected to the low speed input.
Washer System
The windshield washer is activated by the internal wiper motor module when it receives a ground signal input from the multifunction switch. Dependent on the switch selection, the internal wiper motor module activates the windshield washer relay (internal) by grounding the respective relay coil. When the relay is activated, it connects voltage to the washer pump while the washer level switch provides ground to the washer pump.
Visual Inspection Chart Mechanical Electrical
  • Windshield washer hoses
  • Wiper linkage
  • Multifunction switch
  • Battery junction box (BJB) fuse 110 (30A)
  • Central junction box (CJB) fuse 13 (10A)
  • Circuitry
  • Windshield wiper motor
Symptom Chart Condition Possible Sources Action
  • The wipers are inoperative
  • Fuse(s)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test A .
  • The wipers stay on continuously
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test B .
  • The high/low wiper speeds do not operate correctly (intermittent wiper mode OK)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test C .
  • The intermittent windshield wiper speed does not operate correctly (high/low speeds OK)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test D .
  • The wipers will not park at correct position
  • Pivot arm adjustment
  • Linkage
  • Windshield wiper motor
  • REFER to Windshield Wiper Blade and Pivot Arm Adjustment in this section.
  • The washer pump is inoperative
  • Circuitry
  • Windshield washer pump
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test E .
Do you know how to do electrical testing ?
  • windshield wiper motor
  • PINPOINT TEST C: THE HIGH/LOW WIPER SPEEDS DO NOT OPERATE CORRECTLY (INTERMITTENT WIPER MODE OK) s6a~tr~en~file=ani_caut.gif~gen~ref.gif 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 MULTIFUNCTION SWITCH
    • Key in OFF position.
    • Disconnect: Multifunction Switch C202b.
    • Carry out the multifunction switch component test. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
    • Does the multifunction switch pass the component test?
    Yes
    GO to C2 .

    No
    INSTALL a new multifunction switch. REFER to Section 211-05 . C2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
    • Measure the resistance between the multifunction switch C202b-5, circuit 57 (BK), harness side and ground.
      s6a~tr~en~file=n0025872.gif~gen~ref.gif
    • Is the resistance less than 5 ohms?
    Yes
    GO to C3 .

    No
    REPAIR the circuit. TEST the system for normal operation. C3 CHECK CIRCUITS 56 (DB/OG), 61 (YE/RD), AND 63 (RD) FOR OPENS
    • Disconnect: Windshield Wiper Motor C125.
    • Using the following table, measure the resistance between the multifunction switch C202b harness side and the windshield wiper motor C125 harness side:

      Multifunction Switch C202b Windshield Wiper Motor C125 pin 6, circuit 56 (DB/OG) pin 10, circuit 56 (DB/OG) pin 1, circuit 61 (YE/RD) pin 1, circuit 61 (YE/RD) pin 4, circuit 63 (RD) pin 9, circuit 63 (RD)

      s6a~tr~en~file=n0025874.gif~gen~ref.gif
    • Are the resistances less than 5 ohms?
    Yes
    GO to C4 .

    No
    REPAIR the circuit. TEST the system for normal operation. C4 CHECK FOR CORRECT WIPER MOTOR OPERATION
    • Disconnect all wiper motor connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all wiper motor connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present?
    Yes
    GO to C5 .

    No
    The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation. C5 CHECK THE WINDSHIELD WIPER MOTOR
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Carry out the windshield wiper motor component test as outlined in this section.
    • Does the windshield wiper motor pass the component test?
    Yes
    The system is operating correctly at this time. The concern may have been caused by binding or incorrect pivot arm adjustment. REFER to Windshield Wiper Blade and Pivot Arm Adjustment in this section. TEST the system for normal operation.

    No
    INSTALL a new windshield wiper motor. REFER to Windshield Wiper Motor in this section.

    Jul 20, 2016 | 2006 Mercury Grand Marquis

    1 Answer

    I'm driving in rain, wipers working good, all of a sudden they quit! I drive for 15 min, check again, they work for a while, then quit again...what in the problem?


    If your not familiar with automotive electronics an module control of components , I suggest you take it to the dealer . They have the tools to diagnose this type problem !
    The Wiper/Washer System consists of the following components:
    ?€¢
    Windshield wiper/washer switch


    ?€¢
    Body control module (BCM)


    ?€¢
    Wiper PCB relay


    ?€¢
    Wiper high PCB relay


    ?€¢
    Windshield wiper motor


    ?€¢
    Windshield washer fluid pump


    ?€¢
    Windshield washer fluid level switch


    ?€¢
    WPR fuse 25 A


    ?€¢
    WSW fuse 10 A


    Low Speed Operation
    When the wiper switch is in the low speed position, ground is applied through the switch internal resistor and the wiper switch low signal circuit to the body control module (BCM). In response to this signal, the BCM energizes the WIPER PCB relay by applying battery voltage through the wiper relay control circuit to the coil side of the relay. This allows battery positive voltage from the WPR fuse to flow through the switch input side of the WIPER PCB relay and out to the switch input side of the WIPER HIGH PCB relay. Since the wiper high relay is de-energized and its switch contacts are normally closed to the low speed control circuit of the windshield wiper motor, the motor will operate at low speed.
    High Speed Operation When the wiper switch is in the high speed position, ground is applied through the windshield wiper switch high signal circuit to the body control module (BCM) indicating the wiper high speed request. In response to this signal, the BCM then energizes the wiper PCB relay, as stated above, and the wiper high PCB relay by applying ground through the control circuit to the coil side of the relay. With the wiper high relay energized and its switch contacts closed to the high speed control circuit of the wiper motor, the motor will operate at high speed.
    Wiper motor high speed operation and the wiper high speed PCB relay can also be commanded ON/OFF by using a scan tool. Refer to Control Module References.
    DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
    DTC B3875 00: Wiper High Speed Relay Circuit
    DTC B3922 00: Front Wiper Function Select Circuit
    You could Have a switch problem , BCM problem ,PCB relay problem , the pcb relays are non serviceable an the whole under hood fuse box would need to be replaced . Malfunctioning motor bad ground some where etc.....

    Dec 20, 2015 | 2008 Chevrolet Impala

    1 Answer

    Wipers dont work


    This is a complex wiper system . Here are all the components involved !
    The Wiper/Washer System consists of the following components:
    ?€¢
    Windshield wiper/washer switch


    ?€¢
    Body control module (BCM)


    ?€¢
    Wiper 1 relay


    ?€¢
    Wiper 2 relay


    ?€¢
    Wiper diode


    ?€¢
    Windshield wiper motor


    ?€¢
    Windshield washer pump


    ?€¢
    Windshield washer nozzles


    ?€¢
    Windshield washer solvent container


    ?€¢
    Windshield wiper arm and blade assemblies


    ?€¢
    Windshield wiper transmission


    ?€¢
    WIPER/SW 10A fuse


    ?€¢
    WIPER 25A fuse


    Circuit/System Description
    The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a resistor ladder, and windshield washer switch signal circuit is used to determine washer operation. The windshield wiper motor park operation is controlled by the BCM. The BCM recieves an input from the park switch to determine wiper blade position. When the wiper blades are at the bottom of the windshield glass in park position the wiper park switch will open and the circuit will be pulled up to B+ by the BCM. The park signal will be pulled to ground by the wiper motor park switch while the wiper blades are not in the park position.
    The BCM controls the windshield wiper motor through two output controls, controlling two relays which determine the desired wiper speed, high or low
    Diagnostic Trouble Codes (DTCs)
    The body control module (BCM) monitors the voltage on the windshield wiper switch signal 2 circuit for diagnostic purposes. If the circuit is shorted to voltage while the driver is commanded OFF, the BCM will store DTC B3715. If the circuit is shorted to ground while the driver is commanded ON, the BCM will store DTC B3715. Refer to DTC B3715.
    It would be best to have a factory scan tool to diagnose this problem . it would make it easier anyway .
    It

    Dec 05, 2015 | Cars & Trucks

    2 Answers

    What would cause the windshield wipers on my recently purchased Jeep Patriot Sport work on every speed except the high speed. High speed doesn't work at all.


    The intermittent switch has a bad contact in it for the high speed, i would say, most likely will have to replace it.

    Sep 15, 2014 | 2008 Jeep Patriot Sport

    1 Answer

    Windshield wipers quit working on 2004 Chevy Cavalier


    COMMON PROBLEM IS THE ELECTRICAL BOARD WHICH IS PART OF THE MOTOR. HOPE THIS HELPS

    Feb 22, 2013 | 2004 Chevrolet Cavalier

    1 Answer

    Need to get a programmer dont know where its at


    • Windshield Wipers Continue to Run When Turn Signal and Windshield Wiper Switch Are Turned OFF
    • Damaged turn signal and windshield wiper switch .
    • Damaged windshield wiper motor .
    • Damaged windshield wiper control module.
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    Pin Number Circuit Circuit Function 1 57 (BK) Wiper Motor Ground (Park) 2 28 (BK/PK) Wiper Module to Wiper Motor (Park Switch) 3 65 (DG) Wiper Motor Power (Park Feed) 4 61 (Y/R) Wiper Motor Common (RUN) 5 56 (DB/O) Wiper Motor LO 6 58 (W) Wiper Motor HI
    Windshield Wiper System The windshield wiper system consists of :
    • Windshield wiper motor (17508) (F-type).
    • Washer system.
    • Windshield wiper control module.
    • Turn signal and windshield wiper switch (13K359).
    The windshield wiper control module is:
    • Located at the instrument panel fuse panel.
    The windshield wiper motor is:
    • Attached to the cowl top extension (021A36) .
    • Connected to windshield wiper mounting arm and pivot shaft (17566) .
    The turn signal and windshield wiper switch features a:
    • Rotary wiper switch.
    • Push type washer actuator.
    OFF/Low/High Speed
    • Has a two-speed, permanent magnet, three brush electric windshield wiper motor .
    • The windshield wiper motor has a brush rigging that permits selection of low or high speed.
    • When the turn signal and windshield wiper switch is in the LO position, the common brush and the blue/orange wire brush are used, and the windshield wiper motor operates at low speed.
    • When the turn signal and windshield wiper switch is in the HI position, the common brush and the white wire brush are used.
    • In HI position, electric current will bypass a portion of the armature winding causing the windshield wiper motor to operate faster.
    • When the turn signal and windshield wiper switch is moved to the OFF position, the windshield wiper motor will continue at low speed until the park switch outer contacts open.
    • When the park switch contacts open, the windshield wiper motor stops in the park position.
    Interval
    When the turn signal and windshield wiper switch is in the interval position:
    • The wipers make single wipes separated by pauses.
    • The rotary switch is on the end of turn signal and windshield wiper switch .
    • The length of the pause can be set from approximately 1 to 17 seconds.
    • Length of pause decreases as the rotary switch is rotated away from off.
    • Length of pause increases as the rotary switch is rotated toward off.
    While in the interval wiper mode:
    • It is normal to hear a slight click at the beginning of each on/pause cycle. NOTE: When using interval wipers, the first wipe may not occur until after a pause of up to 17 seconds.

    May 27, 2009 | 1994 Ford Mustang

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