DTC P0522-00: Engine Oil Pressure Sensor Circuit Low Input: Notes

DTC P0522:00 DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0522:00	Engine oil pressure sensor circuit low input
DETECTION CONDITION	If the input voltage at the PCM terminal 1AS is less than 0.12 V for 2s, the PCM determines that the engine oil pressure sensor circuit is low. MONITORING CONDITIONS Battery voltage: 8-20 V 0.5 s have elapsed after the ignition was switched ON (engine off or on) Diagnostic support note This is a continuous monitor (CCM). The check engine light does not illuminate. FREEZE FRAME DATA is not available. Snapshot data is available. DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Limits the engine torque or the upper limit of the engine speed.
POSSIBLE CAUSE	Engine oil temperature sensor/engine oil pressure sensor connector or terminals malfunction Short to ground in wiring harness between the following terminals: Engine oil temperature sensor/engine oil pressure sensor terminal A- PCM terminal 1D Engine oil temperature sensor/engine oil pressure sensor terminal D-PCM terminal 1AS PCM connector or terminals malfunction Engine oil pressure sensor signal circuit and ground circuit are shorted to each other Open circuit in wiring harness between engine oil temperature sensor/engine oil pressure sensor terminal A and PCM terminal 1D Engine oil pressure sensor malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.