DTC P1523 - Oil Pressure Above Maximum Threshold
Conditions for setting dtc P1523
| ￭ | Engine Running |
| ￭ | Oil Pressure Sensor ≥ 145.04 psi |
| ￭ | The above must be present for a period of 128 instances/cycles or greater to trigger DTC P1523 |
|
Step |
Action |
Value (s) |
YES |
NO |
|
1 |
- Use a mechanical oil pressure gauge to verify the oil pressure - Does the mechanical gauge read 145.04 psi or greater? |
≥ 145.04 psi |
Go to Step 2 |
Intermittent Issue (Refer to Intermittent Diagnostics) |
|
2 |
- Key ON - Disconnect the Oil Pressure sensor connector - With a DVOM check cavity 2 the 5 volt reference from the ECU - Do you have 4.5 volts from cavity 2? |
4.5 volts |
Go to Step 4 |
Go to Step 3 |
|
3 |
- Disconnect the ECU connector "C" - With a DVOM check the 5 volt reference connector "C" pin 18 (for Drive-By-Cable harness) & Pin 41 (for Drive-By-Wire harness) - Do you have 5 volts coming from the ECU side? |
|
Repair faulty wiring between the ECU and Oil Pressure Sensor |
Go to Step 4 |
|
4 |
- Replace the oil pressure sensor - Is the replacement complete? |
|
Go to Step 5 |
N/a |
|
5 |
- Clear any DTC from the ECU - Turn the ignition off and wait 30 seconds - Start the engine and operate the engine to full operating temperature - Observe the Check Engine Light on the Menu bar in VCM Live - After operating the engine within the test parameters, check for any store codes - Does the engine operate without any stored DTC's? |
|
System is now operational and ready to be tuned |
Contact HP Tuners Support |
Table 41. Oil Pressure Above Maximum Threshold Diagnostics Table
NOTE: Reference DTC P0523 - Oil Pressure Sensor Circuit High for sensor cavity location.
