DTC P0877: Transmission Fluid Pressure Sensor / Switch "D" Circuit Low; DTC P0878: Transmission Fluid Pressure Sensor / Switch "D" Circuit High (TO 08/2009): Description
ATF pressure switch No. 2 is installed in the shift solenoid valve ATF output passage. This switch is used to identify the malfunctioning part when a fail-safe operation is performed. If the shift solenoid valve malfunctions when the ATF pressure switch has a malfunction, a fail-safe operation will be performed. This fail-safe operation is different from the fail-safe operation performed when the solenoid valve malfunctions and the ATF pressure switch is normal.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0877 | ATF pressure switch No. 2 OFF is detected twice when any of the gears from 4th to 6th engages normally. (2-trip detection logic) |
|
| P0878 | ATF pressure switch No. 2 ON is detected twice when any of the gears from 1st to 3rd engages normally. (2-trip detection logic) |