DTC P0787 Shift / Timing Solenoid Low (Shift Solenoid Valve ST); DTC P0788 Shift / Timing Solenoid High (Shift Solenoid Valve ST): Description
WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
Shift solenoid valve ST is switched OFF-ON-OFF in accordance with signals from the ECM when up-shifting and down-shifting between the 3rd and the 4th gears. This reduces the shock of gear shifting between these positions.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0787 | ECM detects short in solenoid valve ST circuit 4 times when solenoid valve ST is operated. (1-trip detection logic) |
|
| P0788 | ECM detects open in solenoid valve ST circuit 4 times when solenoid valve ST is not operated. (1-trip detection logic) |
|