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.
2007 Infiniti M45FACTORY OEM SERVICE PROCEDURE
Body, Lock & Security Control System DTCS
BODY, LOCK & SECURITY SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B2013 | STRG COMM 1 |
| DTC B2551 | STEERING LOCK UNIT |
| DTC B2552 | INTELLIGENT KEY |
| DTC B2553 | IGN POWER CIRCUIT |
| DTC B2554 | ACC POWER CIRCUIT |
| DTC B2555 | STOP LAMP CIRCUIT |
| DTC B2556 | ENG START SW |
| DTC B2557 | VEHICLE SPEED |
| DTC B2558 | SHIFT POSITION |
| DTC B2559 | PDU |
| DTC B2560 | START POW SUP CIRC |
| DTC B2562 | LOW VOLTAGE |
| DTC B2563 | HI VOLTAGE |
| DTC P1612 CHAIN of ECM | IMMU |
| DTC P1611 ID DISCORD, IMM | ECM |
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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