P0815
Upshift Switch Circuit
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0815 means
- The fault code P0815 indicates an issue with the circuit that controls the up and down shift switch. This may cause issues with the transmission, such as difficulty shifting or failure to shift.
Possible symptoms
- Difficulty shifting gears
- Illuminated check engine light
- Failure to shift gears
- Reduced power or acceleration
Possible causes
- Failed up and down shift switch
- Faulty wiring or connections in the circuit
- Loose or corroded electrical connections
- Failed transmission control module (TCM)
Related parts
- Transmission Upshift Sensor: Upshift sensor is responsible for monitoring the gear system when the gear is shifted from a lower to a higher gear. Problems lead to difficulty in shifting gears
Possible solutions
- Replace the up and down shift switch
- 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
P0815 on OBD DashX
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