P0789
Shift/Timing Solenoid Intermittent
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0789 means
- The fault code P0789 indicates that there is an intermittent issue with the shift/timing solenoid circuit, which is responsible for controlling the transmission shifting. This may cause problems while shifting gears or may cause the transmission to not shift at all.
Possible symptoms
- Transmission may not shift at all
- Issues while shifting gears
- Rough shifting or delayed shifting
- Illuminated check engine light
Possible causes
- Faulty 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
P0789 on OBD DashX
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