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.
2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions
WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | Description |
|---|---|
| B2049 | OPEN DETECT 1: Front Wiper HI Intermittent Control 1 & 2 Cannot Be Input |
| B2050 | OPEN DETECT 2: Front Washer Intermittent Control 3 Cannot Be Input |
| B2051 | OPEN DETECT 3: Front Wiper LO, Front Wiper INT & Auto Light Cannot Be Input |
| B2052 | OPEN DETECT 4: TURN LH, PASSING, Headlight 2 & Front Fog Lamp Cannot Be Input |
| B2053 | OPEN DETECT 5: TURN RH, Headlight 1, HI BEAM & Lighting Switch 1st Position Cannot Be Input |
| B2054 | HEADLIGHT 1 SW NG: Headlight 1 Malfunction |
| B2055 | HEADLIGHT 2 SW NG: Headlight 2 Malfunction |
Factory Service Tools
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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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