P0803
1-4 Upshift Skip Shift Solenoid Control Circuit Malfunction
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0803 means
- “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
Free on OBD DashX
P0803 on OBD DashX
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