Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Engine Control System (MR20DE - CALIFORNIA)
ENGINE CONTROL SYSTEM (MR20DE - CALIFORNIA) DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description |
|---|---|
| U0101-U1001 | LOST COMM |
| P0011-P0075 | A/F SEN1 HTR |
| P0011-P0075 | A/F SEN1 HTR |
| P0101-P0128 | MAF SEN/CIRCUIT-B1 |
| P0130-P0198 | A/F SENSOR1 |
| P0222-P0420 | TP SEN 1/CIRC-B1 |
| P0441-P0463 | EVAP |
| P0500-P0643 | VEH SPEED SEN/CIRC |
| P0705-P0840 | T/M RANGE SENSOR A |
| P0850-P1574 | P-N POS SW/CIRCUIT |
| P1610-P1615 | ECM |
| P1715-P1805 | IN PULY SPEED |
| P2004-P2A00 | TUMBLE CONT/V |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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