Description:

This diagnostic trouble code is generated if a voltage higher than the expected value is registered at the output to the left outer worklight on the front of the roof, left turn-signal light on the front of the roof (SAE), or left extra-wide vehicle turn-signal light (SAE). This indicates that the circuit is open or shorted to 12 volts.

Reaction:

When this error is detected, the control software may experience limited or no functionality of the worklight or the turn-signal light.

Recommendations:

• Inspect Light Circuit:
  • Check the wiring and connectors associated with the left outer worklight, left turn-signal light, or left extra-wide vehicle turn-signal light for signs of open circuits or shorts to 12 volts. 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 Lights:
  • Test the left outer worklight, left turn-signal light, or left extra-wide vehicle turn-signal light to ensure they are not damaged or causing the voltage increase. Replace any faulty light components.
• Check Power Supply:
  • Ensure the power supply to the lights is stable and within the specified range. Inspect for any issues that could cause an overvoltage condition.

Note:

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