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Home >> Chrysler >> 2004 >> 300M Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System & Washer System >> Wipers/Washers >> Diagnosis And Testing >> Diagnosis And Testing - Wiper System Conditions >> Wipers Run At High Speed With Switch In Low Speed Position. Wipers Operate In Intermittent Mode, But Each Wipe Is At High Speed.
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Wipers Run At High Speed With Switch In Low Speed Position. Wipers Operate In Intermittent Mode, But Each Wipe Is At High Speed.

  1. Disconnect motor connector.
  2. Using two jumper wires, connect one between the battery positive jump start terminal and Pin 2 on the wiper motor connector. Connect the second lead between ground and Pin 5 on the wiper motor connector. If motor runs at low speed, go to Step 3. If motor runs at high speed, replace the motor.
  3. Check for faulty HI-LO wiper relay. Check for crossed wires in harness from HI-LO relay to motor.
  4. Disconnect C3 bone 12-way connector from the BCM and remove the HI/LO wiper relay.
  5. Using an ohmmeter, check terminal 12 of the G3 bone 12-way connector for short to ground.
  6. If continuity to ground is present, repair as necessary. If no continuity to ground, replace the BCM.