Description:

This diagnostic trouble code is generated if a voltage higher than 16 volts is registered at the output to the rear window wiper. This indicates that the circuit is shorted to a supply lead.

Reaction:

When this error is detected, the control software may experience limited or no functionality of the rear windshield wiper.

Recommendations:

• Inspect Rear Window Wiper Circuit:
  • Check the wiring and connectors associated with the rear window wiper for signs of shorts to a supply lead. Look for damaged insulation or exposed wires. Repair or replace any compromised wiring.
• Verify Voltage Regulation:
  • Ensure the voltage regulator is functioning correctly and maintaining proper voltage levels. Replace the regulator if it is faulty.
• Test Rear Window Wiper:
  • Test the rear window wiper to ensure it is not damaged or causing the voltage increase. Replace any faulty components.
• Check Power Supply:
  • Ensure the power supply to the rear window wiper is stable and within the specified range. Inspect for any issues that could cause an overvoltage condition.

Note:

Excessive voltage can damage the rear window wiper and associated circuitry. Regular inspection and maintenance of the electrical system are essential to prevent such issues.