P0803

2017-10-10

Description:

  • “The fault code P0803 indicates that there is an issue with the circuit that controls the 1-4 Upshift (Skip Shift) solenoid. This solenoid is responsible for the operation of the skip shift feature in manual transmission vehicles, which forces a 1-4 upshift in certain driving conditions. A malfunction in this solenoid can cause several drivability issues.”

Possible Symptoms:

  • Illuminated check engine light

  • Difficulty shifting gears

  • Harsh or delayed upshifts

  • Reduced fuel economy

Possible Causes:

  • Failed 1

  • 4 Upshift (Skip Shift) solenoid

  • Faulty wiring or connections in the circuit

  • Loose or corroded electrical connections

  • Failed transmission control module (TCM)

Related Parts:

  • Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears

Possible Solutions:

  • Replace the 1

  • 4 Upshift (Skip Shift) solenoid

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the transmission control module (TCM) if necessary

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