P2839 OBD-II: Shift Fork "B" Position Circuit High

P2839 Severity

Moderate

Will P2839 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

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P2839 Summary Find a Repair Shop P2839 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P2839?

The Transmission is responsible for converting the power produced by the engine to movement of the vehicle. Some transmissions utilized electric motors to change gears. If the Transmission Control Module determines that the transmission is not shifting properly, code P2839 will be set.

OBD II Fault Code

OBD II P2839

OBD-II Code Transmission may not shift properly is defined as a Shift Fork "B" Position Circuit High

Transmission may not shift properly Symptoms

Increased fuel consumption
Transmission may not shift properly

Common Problems That Trigger the P2839 Code

Internal transmission failure
Transmission Control Module (TCM) failure
Transmission Control Module (TCM) needs to be calibrated
Transmission Control Module (TCM) software needs to be updated
Wiring issue

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Other OBD-II Codes

P2838: Shift Fork "B" Position Circuit Low P2837: Shift Fork "B" Position Circuit Range/Performance P2836: Shift Fork "B" Position Circuit P2835: Shift Fork "A" Position Circuit Intermittent P2834: Shift Fork "A" Position Circuit High P2833: Shift Fork "A" Position Circuit Low P2832: Shift Fork "A" Position Circuit Range/Performance P2831: Shift Fork "A" Position Circuit P2830: Pressure Control Solenoid "K" Control Circuit High P282F: Pressure Control Solenoid "K" Control Circuit Low P282E: Pressure Control Solenoid "K" Control Circuit Range/Performance P282D: Pressure Control Solenoid "K" Control Circuit/Open P283A: Shift Fork "B" Position Circuit Intermittent P283B: Shift Fork "C" Position Circuit P283C: Shift Fork "C" Position Circuit Range/Performance P283D: Shift Fork "C" Position Circuit Low P283E: Shift Fork "C" Position Circuit High P283F: Shift Fork "C" Position Circuit Intermittent P2840: Shift Fork "D" Position Circuit P2841: Shift Fork "D" Position Circuit Range/Performance P2842: Shift Fork "D" Position Circuit Low P2843: Shift Fork "D" Position Circuit High P2844: Shift Fork "D" Position Circuit Intermittent P2845: Shift Fork "A" Position Sensor Incorrect Neutral Position Indicated

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