P279D - OBD II Trouble Code

Our automotive experts have put together the following information about the P279D diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P279D code.

OBD II Fault Code

• OBD II P279D

OBD-II Code 4-wheel drive system is disabled is defined as a Four Wheel Drive (4WD) Range Signal Circuit

The Four Wheel Drive Switch allows the driver to shift from 2-wheel drive to 4-wheel Low or 4-wheel high, depending on driving conditions. If the 4-Wheel Drive Switch sends back in implausible signal, code P279D will be set.

4-wheel drive system is disabled Symptoms

• 4-wheel drive system is disabled

Common Problems That Trigger the P279D Code

• 4-wheel drive switch failure
• Transfer case internal failure
• Transmission Control Module (TCM) failure
• Wiring issue