P0773 (blink 64, U340E) on Toyota Corolla E120: SL SOLENOID VALVE ELECTRICAL MALFUNCTION
Short answer: P0773 means “SL SOLENOID VALVE ELECTRICAL 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 TRANSMISSION WIRE(SL) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire−ECU) -> INSPECT LOCK UP CONTROL SOLENOID ASSY(SL).
- Code
- P0773 · 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
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- Either (a) or (b) is detected for 1 time. (2−trip detection logic) (a) Solenoid resistance is 8 W or less for short circuit when solenoid is energized. (b) Solenoid resistance is 100 kW or more for open circuit when solenoid is not energized.
Likely causes
- Transmission wire; Wire harness; SL solenoid valve; Engine ECU
What to check, in order
- Workshop check order (RM821E): INSPECT TRANSMISSION WIRE(SL) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire−ECU) -> INSPECT LOCK UP CONTROL SOLENOID ASSY(SL)
Related on this car
- A245E/A246E automatic (PK 1.6 = A246E): harsh/flare 2-3 shift, slips, TCC codes
- All fault codes for this car
- Warning lights
- Where the parts are (parts map)
- Common problems
Same code on other cars
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.