P1808
Transmission 4-Wheel Drive Low Indicator Circuit Failure
P1808 is an OBD-II diagnostic trouble code meaning: Transmission 4-Wheel Drive Low Indicator Circuit Failure. Common causes: open or short circuit in the indicator circuit, 4wd low position sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- The 4WD Low indicator does not light up when the mode is turned on
- 4WD Low indicator is constantly on
- 4WD Low indicator flashes
- Incorrect operation of the all-wheel drive system
Causes
- Open or short circuit in the indicator circuit
- 4WD Low Position Sensor Malfunction
- Problems with the transmission control unit
- Corrosion of contacts or connectors
- Malfunction of the indicator itself
How to Fix
- Check the integrity of the indicator circuit wiring harness
- Check the operation of the 4WD Low position sensor
- Check contacts and connectors for corrosion
- Scan the transmission control unit for errors
- If necessary, replace faulty components
Related codes
Error P1808 by Vehicle Brand
FAQ
What does the P1808 code mean?
P1808 is an OBD-II diagnostic trouble code that indicates: Transmission 4-Wheel Drive Low Indicator Circuit Failure
What causes a P1808 error code?
The most common causes of P1808 include: Open or short circuit in the indicator circuit; 4WD Low Position Sensor Malfunction; Problems with the transmission control unit; Corrosion of contacts or connectors.
How do I fix a P1808 diagnostic trouble code?
To fix P1808: Check the integrity of the indicator circuit wiring harness. Check the operation of the 4WD Low position sensor. Check contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1808?
Yes, but get it checked soon
How much does it cost to fix P1808?
The estimated repair cost for P1808 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat