DTC P0873-00: Oil Pressure Switch No. (Oil Pressure Switch A) Stuck Off: Outline

WARNING: This page is about a different variant/trim than selected.

DTC P0873:00 (TCM, ET6A-EL, ET6AX-EL, US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Oil pressure switch No. (Oil pressure switch A) stuck off
Detection condition	Under the following conditions, oil pressure switch No. stuck-off detected by combination of gear ratio malfunction and oil pressure switch pattern malfunction: Engine is running. ATF temperature is 20 °C {68 °F} or more. There is no correlation between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal. Turbine/input shaft speed sensor and output shaft speed sensor DTC is not recorded.
Fail-safe	Inhibits learning control. Inhibits manual mode. Inhibits neutral idle control. Inhibits AAS.
Possible cause	Oil pressure switch No. malfunction TCM malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable