Engine-CodesLincoln – P1807 Lincoln

P1807 Lincoln Code - Transmission 4-Wheel Drive High Indicator Short Circuit To Ground

Quick Answer

The P1807 diagnostic trouble code for Lincoln vehicles indicates a transmission 4-wheel drive high indicator short circuit to ground. Common causes include Faulty 4-wheel drive high indicator switch, Damaged wiring or connectors in the transmission system, Malfunctioning control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1807 Lincoln indicates Transmission 4-Wheel Drive High Indicator Short Circuit To Ground.
Common causes
Common causes include Faulty 4-wheel drive high indicator switch, Damaged wiring or connectors in the transmission system, Malfunctioning control module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P1807 Lincoln Description

The P1807 diagnostic trouble code for Lincoln vehicles indicates a transmission 4-wheel drive high indicator short circuit to ground. This means that there is an electrical issue in the system that controls the 4-wheel drive high indicator, causing it to short circuit to ground. The 4-wheel drive high indicator is responsible for informing the driver when the vehicle is in 4-wheel drive high mode.

OBDII Code P1807 Lincoln - Transmission 4-Wheel Drive High Indicator Short Circuit To Ground
P1807 Lincoln Code - Transmission 4-Wheel Drive High Indicator Short Circuit To Ground

Common Causes of P1807 Lincoln

  1. Faulty 4-wheel drive high indicator switch.
  2. Damaged wiring or connectors in the transmission system.
  3. Malfunctioning control module.
  4. Water or moisture damage to the transmission system.
  5. Electrical short circuits in the system.

Symptoms of P1807 Lincoln

  1. 4-wheel drive high indicator not working or displaying incorrect information.
  2. Dashboard warning lights related to the transmission system.
  3. Transmission shifting issues.
  4. Vehicle getting stuck in 4-wheel drive high mode.
  5. Strange noises coming from the transmission system.

How to Fix P1807 Lincoln

  1. Begin by conducting a thorough inspection of the 4-wheel drive high indicator switch, wiring, connectors, and control module to identify the source of the short circuit.
  2. Test the components using a multimeter to check for continuity and proper electrical signals.
  3. Replace any faulty components such as the indicator switch, damaged wiring, or control module.
  4. Clear the diagnostic trouble code from the vehicle's system using an OBD-II scanner.
  5. Test drive the vehicle to ensure that the 4-wheel drive high indicator is functioning correctly and that the issue has been resolved.

Cost to Fix P1807 Lincoln

The typical repair costs for addressing a transmission 4-wheel drive high indicator short circuit to ground can vary depending on the specific cause of the issue and the extent of the damage. On average, the repair costs for this type of problem can range from $200 to $500, including parts and labor. It's important to note that the actual cost may be higher or lower based on the location, vehicle make and model, and the rates of the auto repair shop. It's recommended to consult with a professional mechanic to get an accurate estimate for the repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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