P1806 Mercury Code - Transmission 4-Wheel Drive High Indicator Short Circuit To Battery
Quick Answer
The P1806 diagnostic trouble code for Mercury vehicles indicates a short circuit to the battery within the transmission 4-wheel drive high indicator circuit. Common causes include Damaged wiring or connectors in the 4-wheel drive high indicator circuit, Short circuit in the indicator switch or control module, Faulty 4-wheel drive high indicator bulb or LED. 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
- P1806 Mercury indicates Transmission 4-Wheel Drive High Indicator Short Circuit To Battery.
- Common causes
- Common causes include Damaged wiring or connectors in the 4-wheel drive high indicator circuit, Short circuit in the indicator switch or control module, Faulty 4-wheel drive high indicator bulb or LED.
- 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.
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Code P1806 Mercury Description
The P1806 diagnostic trouble code for Mercury vehicles indicates a short circuit to the battery within the transmission 4-wheel drive high indicator circuit. This means that there is an electrical issue in the system that controls the 4-wheel drive high indicator, which could lead to incorrect readings or a malfunctioning indicator light. The 4-wheel drive high indicator is crucial for informing the driver about the vehicle's current drive mode, and a short circuit to the battery can disrupt this functionality.
Common Causes of P1806 Mercury
- Damaged wiring or connectors in the 4-wheel drive high indicator circuit.
- Short circuit in the indicator switch or control module.
- Faulty 4-wheel drive high indicator bulb or LED.
- Corrosion in the electrical connections related to the indicator circuit.
Symptoms of P1806 Mercury
- Illumination of the 4-wheel drive high indicator light when the vehicle is not in 4-wheel drive mode.
- Inability to engage or disengage the 4-wheel drive high mode.
- Erratic behavior of the 4-wheel drive system.
- Transmission shifting issues or abnormal noises.
How to Fix P1806 Mercury
- Perform a thorough inspection of the 4-wheel drive high indicator circuit to locate the short circuit to the battery.
- Repair or replace any damaged wiring, connectors, or components in the circuit.
- Test the 4-wheel drive high indicator system to ensure proper functionality.
- Clear the diagnostic trouble code from the vehicle's computer system.
- Conduct a road test to confirm that the issue has been resolved and the indicator functions correctly.
Cost to Fix P1806 Mercury
The cost of repairing a transmission 4-wheel drive high indicator short circuit to the battery can vary depending on the extent of the damage and the specific components that need to be replaced. In general, you can expect to pay between $150 and $350 for parts and labor. However, it's important to note that labor rates at auto repair shops can vary, so it's a good idea to get quotes from multiple shops in your area. Additionally, the cost may be higher if the issue is more complex or if specialized parts are required.
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