OBD Guide
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P279E

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

P279E is an OBD-II diagnostic trouble code meaning: Four Wheel Drive (4WD) Range Signal Circuit Range/Performance. Common causes: faulty transfer case range position sensor, open or short circuit in range signal circuit. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Flashing 4WD light on dashboard
  • Inability to switch between drive modes (2WD, 4H, 4L)
  • System gets stuck in one drive mode
  • Reduced dynamics or strange behavior of the car when driving
  • Other related trouble codes may appear

Causes

  • Faulty transfer case range position sensor
  • Open or short circuit in range signal circuit
  • Problems with the solenoid valve or mode switching motor
  • Mechanical faults in the linkage of the transfer case
  • Four-wheel drive control module or TCM malfunction

How to Fix

  1. Read fault codes and freeze frame data using a scanner
  2. Visually inspect the wiring harness and sensor/module connectors for damage.
  3. Check the resistance and reference voltage of the range position sensor
  4. Check operation of solenoid valves or shift actuators
  5. If necessary, replace the position sensor or control module

Related codes

P279FP2800P2801

Error P279E by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P279E code mean?

P279E is an OBD-II diagnostic trouble code that indicates: Four Wheel Drive (4WD) Range Signal Circuit Range/Performance

What causes a P279E error code?

The most common causes of P279E include: Faulty transfer case range position sensor; Open or short circuit in range signal circuit; Problems with the solenoid valve or mode switching motor; Mechanical faults in the linkage of the transfer case.

How do I fix a P279E diagnostic trouble code?

To fix P279E: Read fault codes and freeze frame data using a scanner. Visually inspect the wiring harness and sensor/module connectors for damage.. Check the resistance and reference voltage of the range position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P279E?

Limited driving only, diagnose soon

How much does it cost to fix P279E?

The estimated repair cost for P279E is $28–167. Actual cost depends on your vehicle, location, and labor rates.

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