P1807
Transmission 4-Wheel Drive High Indicator Short Circuit To Ground
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)
Symptoms
- All wheel drive indicator does not work
- False alarms of the all-wheel drive indicator
- Problems with switching drive modes
- The engine warning light is on
Causes
- Short circuit in indicator circuit
- Wiring harness damage
- Four-wheel drive switch malfunction
- Problems with the transmission control unit
- Corrosion or poor contact in connectors
How to Fix
- Check the integrity of the wires and connectors in the indicator circuit
- Check the circuit resistance to ground
- Test the functionality of the all-wheel drive switch
- Check the transmission control unit for errors
- If necessary, replace damaged circuit elements