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DTC codes / P27xx · Transmission / P279E

P279EFour Wheel Drive (4WD) Range Signal Circuit Range/Performance

P279E indicates that the four-wheel drive (4WD) control module has detected an out-of-range or performance fault in the electrical circuit that reports the selected 4WD range, such as 2WD, 4WD High, or 4WD Low. The computer compares the range signal voltage or state against expected values and sets this code when the signal does not match the commanded or actual range within a calibrated time.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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