Wiper Control Module: Service and Repair

1994 Chevrolet Lumina V6-204 3.4L DOHCSECTION Service and Repair

Fig. 2 Crank Arm In Inner Wipe Position:




Fig. 3 Crank Arm To Inner Wipe Position:






The windshield wiper module consists of both the wiper motor and the wiper transmission.
1. Disconnect battery ground cable.
2. Raise hood and remove washer hose, protective cap and nut from each wiper arm.
3. Lift each wiper arm and insert a suitable pin or pop rivet completely through the two holes located next to pivot of arm, then, using wiper arm removal tool No. J-8966, or equivalent, lift each arm off its transmission shaft.
4. Remove lower reveal molding attaching screws, then lower hood and remove lower reveal molding upward and rearward.
5. Raise hood, then remove air inlet panel screws, underhood lamp switch (if equipped) and air inlet panel.

NOTE: Attach holding wire or string to upper portion of switch before removing retaining nut to prevent switch from falling between panels.

6. Disconnect wiring harness connectors at motor and washer hose at firewall.
7. If motor is inoperative, motor crank arm must be rotated to inner wipe position, Fig. 2. Engage upper jaw of pliers against top edge of crank arm and lower jaw against crank arm nut, Fig. 3.
8. Remove three screws from bellcrank housing, then lower transmission.
9. Remove wiper module from vehicle.
10. Reverse procedure to install.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.