P0711 (blink 38) on Toyota Corolla E120: TRANSMISSION FLUID TEMPERATURE SENSOR RANGE/PERFORMANCE PROB-
Short answer: P0711 means “TRANSMISSION FLUID TEMPERATURE SENSOR RANGE/PERFORMANCE PROB-”. 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(ATF temperature sensor) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire − ECU).
- Code
- P0711 · blink 38
- 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
- Either (a) or (b) is detected for 0.5 sec. or more. (2−trip detection logic) (a) Temperature sensor resistance is less than 79 W (b) After the engine has been operating for 15 minutes or more, the resistance at the temp. sensor is more than 156 kW
Likely causes
- ATF temperature sensor; Wire harness; Engine CU
What to check, in order
- Workshop check order (RM821E): INSPECT TRANSMISSION WIRE(ATF temperature sensor) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire − ECU)
Related on this car
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.

