Oil Pressure Sensor Inspection

1. Turn ignition switch ON.
2. Check voltage between double meter harness connector M89 terminal 4 and ground.

   Terminals			Condition	Voltage (Approx.)
   (+)		(-)
   Connector	Terminal
   M89	4	Ground	When ignition switch is in ON position. (Engine stopped.)	0.5V
   			Engine running. [When the oil pressure is 60 psi (4.22 kg/cm2 )]	2.5V

   Fig 1: Checking Oil Pressure Sensor Signal

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: Replace double meter. Refer to , "REMOVAL AND INSTALLATION ".

   NG: GO TO 2.

Check voltage between double meter harness connector M89 terminal 3 and ground.

Approx. 5.5V 

Fig 2: Checking Oil Pressure Sensor Power Supply

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG 

OK: GO TO 3.

NG: Check oil pressure sensor power supply circuit for short to ground. If OK then replace double meter. Refer to , "REMOVAL AND INSTALLATION ".

1. Turn ignition switch OFF.
2. Disconnect double meter and oil pressure sensor connectors.
3. Check continuity between double meter harness connector M89 (A) terminal 3 and oil pressure sensor harness connector F32 (B) terminal 3.

   Continuity should exist  .

   Fig 3: Checking Oil Pressure Sensor Power Supply Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO 4.

   NG: Repair harness or connector between double meter and oil pressure sensor.

1. Check continuity between double meter harness connector M89 (B) terminal 4 and oil pressure sensor harness connector F32 (A) terminal 2.

   Continuity should exist  .

2. Check continuity between double meter harness connector M89 (B) terminal 4 and ground.

   Continuity should not exist  .

   Fig 4: Checking Oil Pressure Sensor Signal Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO 5.

   NG: Repair harness or connector between double meter and oil pressure sensor.

Check continuity between double meter harness connector M89 (A) terminal 5 and oil pressure sensor harness connector F32 (B) terminal 1.

Continuity should exist  .

OK or NG 

OK: Replace double meter (oil pressure gauge does not move).

OK: Replace oil pressure sensor (oil pressure gauge moves but reads incorrectly).

NG: Repair harness or connector between double meter and oil pressure sensor.

Fig 5: Checking Oil Pressure Sensor Ground Circuit

Courtesy of NISSAN NORTH AMERICA, INC.