CorollaFix

P0758 (blink 63) on Toyota Corolla E120: S2 SOLENOID VALVE ELECTRICAL MALFUNCTION

Short answer: P0758 means “S2 SOLENOID VALVE ELECTRICAL MALFUNCTION”. The car’s computer has found a fault in the ECT A245E/A246E system and turns on the Malfunction indicator lamp (Check Engine). First check: workshop check order (RM821E): CHECK TRANSMISSION WIRE(ECU − Body ground) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire − ECU) -> INSPECT TRANSMISSION 2WAY NO.1 SOLENOID ASSY(S1) -> INSPECT TRANSMISSION 2WAY NO.2 SOLENOID ASSY(S2).

Code
P0758 · blink 63
System
ECT A245E/A246E
Dashboard light
Malfunction indicator lamp (Check Engine)
Applies to
4-speed A/T A245E/A246E (RM821E ECT section covers both). PK: ZZE121R-GEPNKP 1.6 auto = A246E 30500-1A761 (PartSouq EPC fig 3501). PK 1.3 NZE120 has no auto.
Confidence
high (official Toyota RM821E)
Source
toyotamanuals.gitlab.io

Symptoms and when it is set

  1. (a) Solenoid resistance is 8 W or less (short circuit) when the solenoid is energized. (b) Solenoid resistance is 100 kW or more (open circuit) when the solenoid is not energized. (b) Fail safe function: If either of the solenoid valve circuits develops an open or short, the En noid valve ON and OFF to shift to the gear positions shown in the table ab turns the ST solenoid valve OFF at the same time. If both solenoids malfun not be performed electronically and must be done manually. Manual shifting as shown in the above table must be done (In the case of a ECU stops sending current to the short circuited solenoid).

Likely causes

  1. Transmission wire; Wire harness; S1/S2 solenoid valve; Engine ECU gine ECU turns the other sole- ove. The Engine ECU also ction, hydraulic control can- short circuit, the Engine

What to check, in order

  1. Workshop check order (RM821E): CHECK TRANSMISSION WIRE(ECU − Body ground) -> CHECK WIRE HARNESS AND CONNECTOR(Transmission wire − ECU) -> INSPECT TRANSMISSION 2WAY NO.1 SOLENOID ASSY(S1) -> INSPECT TRANSMISSION 2WAY NO.2 SOLENOID ASSY(S2)

Related on this car

Same code on other cars

← P0753/62 P0773/64 →

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.