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Home >> Toyota >> 2012 >> Corolla S, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Automatic Transmission (U341E) (Diagnostic Codes (P0705 - P2759) & Circuit Tests)) >> Automatic Transaxle System >> DTC P0787: Shift / Timing Solenoid Low (Shift Solenoid Valve ST); DTC P0788: Shift / Timing Solenoid High (Shift Solenoid Valve ST) >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2011 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.

The ECM commands gearshift by turning the shift solenoid valves "ON/OFF". When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem and the MIL comes on. Illuminating the MIL, the ECM performs the fail-safe and turns the other shift solenoid valves in good condition "ON/OFF" (In case of an open or short circuit, the ECM stops sending current to the circuit.).

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