P0788
Shift/Timing Solenoid High
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0788 means
- The fault code P0788 indicates that there is an issue with the high output voltage level in the shift/timing solenoid circuit. This may cause the transmission to shift poorly or not shift at all.
Possible symptoms
- Poor or delayed shifting
- Transmission slipping or not shifting at all
- Illuminated check engine light
- Reduced engine power or acceleration
Possible causes
- Failed shift/timing 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 shift/timing 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
P0788 on OBD DashX
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