Engine Oil Pressure Sensor Failure
Indicates a failure in the engine oil pressure sensor circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The engine oil pressure sensor measures how much pressure the oil pump is supplying, but there's a problem with that sensor or its wiring, leading to inaccurate readings.
What the computer is actually seeing
The ECM expects an oil pressure signal voltage between 0.5V (0 kPa) and 4.5V (up to 500 kPa). If it detects a voltage outside this range, it triggers the fault code.
What a healthy reading looks like
Oil pressure should be between 200 kPa (29 psi) and 500 kPa (73 psi) at normal operating temp.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the engine oil level and condition, add or replace if necessary. Decision: Is the oil level correct? Yes: Go to step 2. No: Fix oil level and retest.
- 2Inspect the oil pressure sensor connector and wiring for damage or corrosion. Use a multimeter to check for continuity. Decision: Is the wiring intact? Yes: Go to step 3. No: Repair or replace wiring and retest.
- 3Using a scan tool, check the oil pressure sensor's voltage output at idle. It should be around 1.5V to 4.5V. Decision: Is the output voltage in range? Yes: Replace the oil pressure sensor. No: Verify sensor power and ground circuits, then replace sensor if needed.
Common causes
- Faulty oil pressure sensor
- Wiring issues (shorts or breaks)
- Low oil level or viscosity
- Faulty engine oil pump
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's not recommended to drive too long as low oil pressure can cause engine damage.
Will this code come back after I fix it?
If repairs are done correctly, the code should clear and not return.
Why does this code sometimes pair with other codes?
Engine oil pressure issues can affect other sensors reading pressure, leading to multiple codes.
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