OIL PRESSURE SENSOR SIGNAL CIRCUIT

1. Connect CONSULT‐III.
2. Select the “DATA MONITOR” for the “METER/M&A”, and then check the “OIL W/L” monitor value.

OIL W/L
Ignition switch ON	:On
Engine running	:Off

>>INSPECTION END

1. Turn the ignition switch OFF.
2. Disconnect the connectors of combination meter and oil pressure sensor.
3. Check for continuity between the combination meter harness connector and the oil pressure sensor harness connector.
   

   Combination meter		Oil pressure sensor		Continuity
   Connector	Terminal	Connector	Terminal
   M53	34	E255	1	Existed

   
   
4. Check for continuity between the combination meter harness connector and the ground.
   

   Combination meter		Ground	Continuity
   Connector	Terminal
   M53	34		Not existed

   
   
5. Check for continuity between the combination meter harness connector and the oil pressure sensor harness connector.
   

   Combination meter		Oil pressure sensor		Continuity
   Connector	Terminal	Connector	Terminal
   M53	35	E255	2	Existed

   
   
6. Check for continuity between the combination meter harness connector and the ground.
   

   Combination meter		Ground	Continuity
   Connector	Terminal
   M53	35		Not existed

   
   
7. Check for continuity between the combination meter harness connector and the oil pressure sensor harness connector.
   

   Combination meter		Oil pressure sensor		Continuity
   Connector	Terminal	Connector	Terminal
   M53	14	E255	3	Existed

   
   
8. Check for continuity between the combination meter harness connector and the ground.
   

   Combination meter		Ground	Continuity
   Connector	Terminal
   M53	14		Not existed

   
   

YES>>INSPECTION END

NO>>Repair the harnesses or connectors.

Check the voltage between the combination meter terminal 35 and the ground.

Condition	Measuring condition	Voltage (V)
Engine stop	Ignition switch ON	Approx. 1
Engine running	Oil pressure is at 500 kPa	Approx. 3

YES>>INSPECTION END

NO>>Replace the oil pressure switch.