Engine Oil Pressure Switch Circuit [09/2020 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Oil Pressure Switch	Engine oil pressure switch	OFF or ON	OFF: Engine started ON: Engine not started	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Oil Pressure Switch

   Result

   Result	Proceed to
   The Data List item changes correctly	A
   The Data List item do not change correctly	B

Result: 

A 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 

Result: 

B 

See step  2

1. Inspect the engine oil pressure switch assembly.

   Refer to ON-VEHICLE INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ENGINE OIL PRESSURE SWITCH ASSEMBLY. Refer to  REMOVAL [11/2017 - ] 

Result: 

OK 

See step  3

1. Disconnect the F37 engine oil pressure switch assembly connector.
2. Disconnect the O3 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F37-1 - O3-9 (S)	Always	Below 1 Ω
   F37-1 or O3-9 (S) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR