Error code
OBD2 P0789
OBD2P0789
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Shift/Timing Solenoid Intermittent.
Severity
moderateCan drive, but shifting issues may occur.
Summary
P0789 indicates an intermittent issue with the shift/timing solenoid, which is part of the transmission control system.
Common Causes
- Poor wiring or connection
- Faulty shift/timing solenoid
- ECM/PCM!TCM malfunction
Fixes
- Inspect and repair wiring or connections related to the shift/timing solenoid.
FAQ
What does P0789 mean?
P0789 indicates an intermittent problem with the shift/timing solenoid in your transmission.
How do I fix P0789?
Start by inspecting and repairing any faulty wiring or connections related to the shift/timing solenoid. If necessary, replace the solenoid itself.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0700Transmission Control System (MIL Request)
- P0701Transmission Control System Range/Performance
- P0702Transmission Control System Electrical
- P0703Brake Switch 'B' Circuit
- P0704Clutch Switch Input Circuit Malfunction
- P0705Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- P0706Transmission Range Sensor Circuit Range/Performance
- P0707Transmission Range Sensor Circuit Low
- P0708Transmission Range Sensor Circuit High
- P0709Transmission Range Sensor Circuit Intermittent
- P0710Transmission Fluid Temperature Sensor 'A' Circuit
- P0711Transmission Fluid Temperature Sensor 'A' Circuit Range/Performance