P1751 – Shift Solenoid Performance (Toyota)
Description
The ECM detected improper performance of a shift solenoid affecting gear shifting.
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View Recommended ScannersSymptoms
- Harsh shifting
- Delayed shifting
- Slipping
- Poor acceleration
- Check engine light
Causes
- Weak solenoid
- Dirty ATF
- Valve body restriction
- Wiring issues
- TCM driver fault
Diagnosis
- Check ATF condition
- Test solenoid resistance
- Inspect wiring
- Scan TCM data
- Inspect valve body
Repair
- Replace solenoid
- Refill ATF
- Clean valve body
- Repair wiring
