Engine Lubrication System Symptom Troubleshooting - Low Oil Pressure Indicator does not come on with the vehicle in the ON mode
Low Oil Pressure Indicator does not come on with the vehicle in the ON mode
1.
Input signal test:

Input signal test
?1.
Connect the HDS to the DLC.

?2.
Press the engine start/stop button to select the ON mode.

?3.
Make sure the HDS communicates with the vehicle and the PCM. If it does not communicate, troubleshoot the DLC circuit.

?4.
Check for DTCs. If a DTC is present, diagnose, and repair the cause before continuing with this test.


?5.
Do the gauge control module self-diagnostic function.

Is the gauge control module OK?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
2.
Oil pressure sensor test 1:

Oil pressure sensor test 1
?1.
Press the engine start/stop button to select the ON mode, and check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
MAP SENSOR
Lower than 19.9
kPa
    
Lower than 0.203
kgf/cm2
Lower than 2.89
psi
BARO SENSOR
Lower than 19.9
kPa
    
Lower than 0.203
kgf/cm2
Lower than 2.89
psi

Do the current condition(s) match the threshold?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.?
3.
Oil pressure sensor test 2:

Oil pressure sensor test 2
?1.
Press the engine start/stop button to select the ON mode, and check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ROCKER ARM OIL PRESSURE SENSOR
Lower than 19.0
kPa
    
Lower than 0.194
kgf/cm2
Lower than 2.76
psi

Do the current condition(s) match the threshold?

     
YES
     
     
     
Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.?
     
NO