John Deere 522434.06 – CLC (Cab Load Center): Front Windscreen Wiper Slow Speed Circuit High Amp Draw

This condition occurs when the electrical current in the front wiper motor's low-speed circuit surpasses the expected limit (such as the fuse rating). This typically indicates a short circuit to ground, damaged wiring, or a mechanical overload/internal failure of the wiper motor itself.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 7630
• 7730
• 7830
• 7930
• 9230
• 9330
• 9430
• 9530
• 9630
• 444J
• 544J
• 624J
• 770G
• 770GP
• 772G
• 772GP
• XCG 330LC-8B
• 540G-III
• 548G-III

1. 1

   Restart the engine/machine to verify if the active Diagnostic Trouble Code reappears, as communication messages can trigger a false code.

2. 2

   Remove any operator-customized accessories (such as aftermarket flood lights or modified window wipers) that might be tied into the cab wiring and overloading the CLC circuit.

3. 3

   Investigate the front wiper motor and its circuitry for any potential faults, pinched wires, or damage that could cause a short to ground.

4. 4

   Check the physical wiper linkage for binding, debris, or mechanical resistance that could be forcing the motor to work harder and draw excessive amperage.

1. 1

   Isolate the Circuit

   Disconnect the front wiper motor from the wiring harness to determine if the short/high draw is in the wiring or the motor itself.

2. 2

   Repair Wiring

   If the wiring harness shows signs of chafing, melting, or a short to ground, repair or replace the affected sections of the harness.

3. 3

   Replace the Motor

   If the wiring is intact and the mechanical linkage moves freely, the high current draw is likely due to an internal short or failure within the wiper motor. Replace the front wiper motor.

4. 4

   Functionality Testing

   After replacing the faulty elements, clear the codes and test the low-speed functionality of the wiper motor to ensure it operates correctly without tripping the CLC circuit limit.