The P012E: Turbocharger/Supercharger Inlet Pressure Sensor Circuit Intermittent indicates an intermittent issue within the circuit that monitors the pressure at the turbocharger or supercharger inlet. This problem could be due to a faulty sensor, wiring issues, or an intermittent connection.
P012E – Quick Overview
| Meaning | P012E: Turbocharger/Supercharger Inlet Pressure Sensor Circuit Intermittent |
| Is it serious? | Yes, this code can be serious as intermittent issues can cause unpredictable engine performance, potentially leading to damage if not addressed. |
| Possible causes | – Intermittent connection in the turbocharger/supercharger inlet pressure sensor circuit – Faulty turbocharger/supercharger inlet pressure sensor – Wiring or connector issues – Faulty PCM |
| How to diagnose? | – Inspect the turbocharger/supercharger inlet pressure sensor for intermittent operation. – Check wiring and connectors for loose or corroded contacts. – Perform a wiggle test to identify intermittent faults. – Replace or repair the sensor or wiring as necessary. |
P012E Meaning
The P012E: Turbocharger/Supercharger Inlet Pressure Sensor Circuit Intermittent means there’s an inconsistent signal coming from the sensor that monitors the pressure at the turbocharger or supercharger inlet. This could lead to erratic engine performance if not properly diagnosed and fixed.
Step-by-step diagnostic guide
Follow the outline procedure to diagnose this DTC by eliminating possible causes one by one.
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check if there are any other related codes present. These might give additional clues about the problem. | OBD-II Scanner |
| Inspect the Turbocharger/Supercharger Inlet Pressure Sensor | Check the sensor for intermittent operation or signs of wear. Ensure it is securely attached and connected. | Flashlight, Safety Gloves |
| Perform a Wiggle Test | Wiggle the wiring and connectors while monitoring sensor readings to detect any intermittent faults. | OBD-II Scanner, Multimeter |
| Inspect Wiring and Connectors | Carefully check the wiring and connectors for loose, corroded, or damaged contacts. | Flashlight, Multimeter |
| Repair or Replace Faulty Components | If any intermittent faults are identified, repair or replace the affected components. Ensure all connections are secure and free of corrosion. | Replacement Sensor, Wire Strippers, Electrical Tape |
| Clear the Code and Test Drive | After completing the necessary repairs, clear the P012E code using the OBD-II scanner. Take the vehicle for a test drive to ensure the issue is resolved and the code does not return. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P012E code has not reappeared. If the code returns, further diagnosis may be required. | OBD-II Scanner |
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