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Home >> Mazda >> 2022 >> CX-5 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (On-Board Diagnostics - A/T (GW6AX-El)) >> DTC P0842-00: Oil Pressure Switch No. 1 (Oil Pressure Switch B) Stuck On >> Notes

DTC P0842-00: Oil Pressure Switch No. 1 (Oil Pressure Switch B) Stuck On: Notes

WARNING: This page is about a different variant/trim than selected.
DTC P0842-00: (TCM - GW6AX-EL) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0842:00 Oil pressure switch No. 1 (Oil pressure switch B) stuck on
DETECTION CONDITION
  • Under the following conditions, oil pressure switch No. 1 stuck-on 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
  • Limits engine torque.
  • Inhibits learning control.
  • Inhibits manual mode.
  • Inhibits neutral idle control.
  • Inhibits AAS.
POSSIBLE CAUSE
  • Oil pressure switch No. 1 malfunction
  • TCM malfunction
SYSTEM WIRING DIAGRAM Not applicable