DTC P0877-00: Oil Pressure Switch No. 4 (Oil Pressure Switch B) Stuck On: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Oil pressure switch No. 4 is built into oil pressure switch B.
If there is a malfunction in oil pressure switch No. 4, replace oil pressure switch B.

DTC P0877:00	Oil pressure switch No. 4 (Oil pressure switch B) stuck on
DETECTION CONDITION	Under the following conditions, oil pressure switch No. 4 stuck-on detected by combination of gear ratio malfunction and oil pressure switch pattern malfunction: Engine is running. Battery voltage is 8 V or more . ATF temperature is 20 °C {68 °F} or more .
FAIL-SAFE FUNCTION	Limits engine torque. Inhibits learning control. Inhibits manual mode. Inhibits neutral idle control. Inhibits AAS.
POSSIBLE CAUSE	Oil pressure switch No. 4 malfunction
SYSTEM WIRING DIAGRAM	-