DTC P0520-24: Engine Oil Pressure Sensor/Switch "A" Signal Stuck High; DTC P0520-2A: Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range [12/2021 - ]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   P0520-24 or P0520-2A and other DTCs are output	A
   P0520-24 or P0520-2A is output	B

   HINT: 

   If any DTCs other than P0520-24 or P0520-2A are output, troubleshoot those DTCs first.

Result: 

A 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ] 

Result: 

B 

See step  2

1. Read the value displayed on the GTS.
   1. Start the engine.
   2. With the engine oil temperature at 75 to 85°C (167 to 185°F), read the "Engine Oil Pressure" with the engine speed at 1000 rpm, 2000 rpm and 3000 rpm.

      Powertrain > Engine > Data List 

      Tester Display
      Engine Speed
      Engine Oil Temperature Sensor
      Engine Oil Pressure

2. Read the oil pressure using an oil pressure gauge with adapter.
   1. Install the oil pressure gauge.

      Refer to PROCEDURE - Step 3

   2. Start the engine.
   3. With the engine oil temperature at 75 to 85°C (167 to 185°F), and then read the oil pressure gauge value at 1000 rpm, 2000 rpm and 3000 rpm.

      Powertrain > Engine > Data List 

      Tester Display
      Engine Speed
      Engine Oil Temperature Sensor

3. Compare the Data List value and the oil pressure gauge reading.

   OK

   Data List value and gauge reading are within +/-50 kPa (7.3 psi) of each other

   HINT: 

   Be sure to clear the DTCs after reinstalling the oil pressure sensor or reconnecting the oil pressure sensor connector, as DTCs may be stored.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPLACE OIL PRESSURE SENSOR (OIL PRESSURE SENDER GAUGE ASSEMBLY). Refer to  REMOVAL [12/2021 - ]