Description:

This diagnostic trouble code is generated if a voltage higher than 16 volts is registered at the output to the heated rear window. 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 heated rear window.

Recommendations:

• Inspect Heated Rear Window Circuit:
  • Check the wiring and connectors associated with the heated rear window 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 Heated Rear Window:
  • Test the heated rear window to ensure it is not damaged or causing the voltage increase. Replace any faulty components.
• Check Power Supply:
  • Ensure the power supply to the heated rear window is stable and within the specified range. Inspect for any issues that could cause an overvoltage condition.

Note:

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