P278C OBD-II: Kick Down Switch Circuit Low

P278C Severity

Moderate

Will P278C 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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P278C Summary Find a Repair Shop P278C Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P278C?

The kick down switch tells the transmission when to downshift the transmission so the vehicle can accelerate faster. If the kickdown switch sends an implausible signal to the transmission control module (TCM), code P278C will be stored.

OBD II Fault Code

OBD II P278C

OBD-II Code Decreased engine performance is defined as a Kick Down Switch Circuit Low

Decreased engine performance Symptoms

Decreased engine performance

Common Problems That Trigger the P278C Code

Kick down switch failure
Transmission Control Module (TCM) failure
Wiring issue

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Other OBD-II Codes

P278B: Kick Down Switch Circuit Range/Performance P278A: Kick Down Switch Circuit P2789: Clutch "A" Adaptive Learning at Limit P2788: Auto Shift Manual Adaptive Learning at Limit P2787: Clutch Temperature Too High P2786: Gear Shift Actuator Temperature Too High P2785: Clutch Actuator Temperature Too High P2784: Input/Turbine Speed Sensor "A"/"B" Correlation P2783: Torque Converter Temperature Too High P2782: Downshift Switch Circuit Intermittent/Erratic P2781: Downshift Switch Circuit High P2780: Downshift Switch Circuit Low P278D: Kick Down Switch Circuit High P278E: Kick Down Switch Circuit Intermittent/Erratic P278F: Clutch "B" Adaptive Learning at Limit P2790: Gate Select Direction Circuit P2791: Gate Select Direction Circuit Low P2792: Gate Select Direction Circuit High P2793: Gear Shift Direction Circuit P2794: Gear Shift Direction Circuit Low P2795: Gear Shift Direction Circuit High P2796: AUXILIARY Transmission Fluid Pump Control Circuit/Open P2797: AUXILIARY Transmission Fluid Pump Performance P2798: AUXILIARY Transmission Fluid Pump Control Circuit Low

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