P279D
Four Wheel Drive (4WD) Range Signal Circuit
P279D is an OBD-II diagnostic trouble code meaning: Four Wheel Drive (4WD) Range Signal Circuit. Common causes: open or short circuit in signal circuit, gear range sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine Light Is On
- Problems with switching all-wheel drive modes
- Unexpected change in all-wheel drive behavior
- Reduced traction on difficult road surfaces
Causes
- Open or short circuit in signal circuit
- Gear range sensor malfunction
- Problems with the 4WD control unit
- Corrosion of contacts or connectors
- Mechanical damage to wiring
How to Fix
- Check signal circuit integrity
- Check the operation of the gear range sensor
- Check connections and connectors for corrosion
- Diagnose the 4WD control unit
- Replace damaged components if necessary
Related codes
Error P279D by Vehicle Brand
FAQ
What does the P279D code mean?
P279D is an OBD-II diagnostic trouble code that indicates: Four Wheel Drive (4WD) Range Signal Circuit
What causes a P279D error code?
The most common causes of P279D include: Open or short circuit in signal circuit; Gear range sensor malfunction; Problems with the 4WD control unit; Corrosion of contacts or connectors.
How do I fix a P279D diagnostic trouble code?
To fix P279D: Check signal circuit integrity. Check the operation of the gear range sensor. Check connections and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P279D?
Limited driving only, diagnose soon
How much does it cost to fix P279D?
The estimated repair cost for P279D is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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