DTC P0843-00: Oil Pressure Switch No. 1: Notes

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

NOTE:

Oil pressure switch No. 1 is built into oil pressure switch B.
If there is a malfunction in oil pressure switch No. 1, replace oil pressure switch B.

DTC P0843:00	Oil pressure switch No. 1 (Oil pressure switch B) stuck off
DETECTION CONDITION	Under the following conditions, oil pressure switch No. 1 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 difference 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 FUNCTION	Inhibits malfunctioning gear. Limits engine torque. Inhibits learning control. Inhibits manual mode. Inhibits neutral idle control. Inhibits AAS.
POSSIBLE CAUSE	ATF is less than specified value Oil pressure switch No. 1 malfunction
SYSTEM WIRING DIAGRAM	Not applicable