DTC P0872: Transmission Fluid Pressure Sensor / Switch "C" Circuit Low; DTC P0873: Transmission Fluid Pressure Sensor / Switch "C" Circuit High (TO 08/2009): Description
ATF pressure switch No. 1 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 |
|---|---|---|
| P0872 | ATF pressure switch No. 1 OFF is detected twice when any of the gears from 1st to 4th engages normally. (2-trip detection logic) |
|
| P0873 | ATF pressure switch No. 1 ON is detected twice when 5th or 6th gear engages normally. (2-trip detection logic) |