CorollaFix

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

  1. (a) or (b) condition below is detected for 1 second or more. (a) SLT− terminal: 0V (b) SLT− terminal: 12V

Likely causes

  1. Open or short in SLT solenoid valve circuit; SLT solenoid valve; Engine ECU

What to check, in order

  1. 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

← P1725/37 P1780/97 →

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.