DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) [12/2013 - 11/2016]: Description
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
Changing from 1st to 6th is performed by the TCM turning shift solenoid valves SL1, SL2, SL3, SL4 and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated.
Refer to FAIL-SAFE CHART [12/2013 - 11/2016]
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0778 | Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) | An open or short circuit (output signal duty is 0% or 100%) is detected by the TCM in the shift solenoid valve SL2 circuit while driving and shifting gears (SL2 output signal duty is more than 0% and less than 100% under normal conditions) (1-trip detection logic). |
|
Comes on | DTC stored |