P0770 (blink 64) on Toyota Corolla E120: SL SOLENOID VALVE MALFUNCTION
Short answer: P0770 means “SL SOLENOID VALVE MALFUNCTION”. The car’s computer has found a fault in the ECT U340E system and turns on the Malfunction indicator lamp (Check Engine). First check: workshop check order (RM821E): INSPECT LOCK UP CONTROL SOLENOID ASSY(SL) -> INSPECT TRANSMISSION VALVE BODY ASSY(See chapter 2 in the preblem -> INSPECT TORQUE CONVERTER ASSY.
- Code
- P0770 · blink 64
- System
- ECT U340E
- Dashboard light
- Malfunction indicator lamp (Check Engine)
- Applies to
- 4-speed A/T U340E. PK: ZZE122R-GEPNKP 1.8 auto from 07.2005 (EPC fig 3501/3512 note (0507- )ATM..PKN); JDM NZE121 1NZ autos
- Market note
- Hong Kong only
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- During normal driving, the gear required by the Engine ECU does not match the actual gear (2−trip detection logic)
Likely causes
- SL solenoid valve; Valve body; Torque converter; Automatic transaxle (clutch, brake or gear etc.)
What to check, in order
- Workshop check order (RM821E): INSPECT LOCK UP CONTROL SOLENOID ASSY(SL) -> INSPECT TRANSMISSION VALVE BODY ASSY(See chapter 2 in the preblem -> INSPECT TORQUE CONVERTER ASSY
Related on this car
- A245E/A246E automatic (PK 1.6 = A246E): harsh/flare 2-3 shift, slips, TCC codes
- U340E delayed engagement
- All fault codes for this car
- Warning lights
- Where the parts are (parts map)
- Common problems
Same code on other cars
- P0770 · Toyota Vitz (1st gen)
- P0770 · Toyota Corolla (11th gen, E170)
- P0770 · Toyota Corolla (10th gen, E140)
- P0770 · Honda City (5th gen, GM2)
- P0770 · Honda Civic (10th gen, FC)
- P0770 · Suzuki Wagon R (Pakistan, K10B)
- P0770 on all cars compared
Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.