Metering Oil Pump Stepper Motor Test

Remove sensor connector. Note terminal identification. See Fig 1 . Using ohmmeter, check resistance at specified terminals. Resistance must be within specification. See METERING OIL PUMP POSITION STEPPER MOTOR RESISTANCE table.

Fig 1: Identifying Metering Oil Pump Stepper Motor Terminals

Courtesy of MAZDA MOTORS CORP.

METERING OIL PUMP POSITION ST MOTOR RESISTANCE

Terminal	Ohms
+B1-SM1	16-31
+B1-SM3	16-31
+B2-SM2	16-31
+B2-SM4	16-31