P1760 (blink 77, U340E) on Toyota Corolla E120: LINEAR SOLENOID FOR ACCUMULATOR PRESSURE CONTROL MALFUNCTION (SLT)
Short answer: P1760 means “LINEAR SOLENOID FOR ACCUMULATOR PRESSURE CONTROL MALFUNCTION (SLT)”. 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): CHECK TRANSMISSION WIRE(SLT) -> CHECK WIRE HARNESS AND CONNECTOR(SLT − ECU) -> INSPECT LINE PRESSURE CONTROL SOLENOID ASSY(SLT).
- Code
- P1760 · blink 77
- 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
- (a) or (b) condition below is detected for 1 second or more. (a) SLT− terminal: 0V (b) SLT− terminal: 12V
Likely causes
- Open or short in SLT solenoid valve circuit; SLT solenoid valve; Engine ECU
What to check, in order
- Workshop check order (RM821E): CHECK TRANSMISSION WIRE(SLT) -> CHECK WIRE HARNESS AND CONNECTOR(SLT − ECU) -> INSPECT LINE PRESSURE CONTROL SOLENOID ASSY(SLT)
Related on this car
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.

