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

1. Check ASCD Steering Switch Circuit For ASCD Control Unit

WARNING: This page is about a different car, the 2004 Infiniti M45 and 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

With CONSULT-II

See "MAIN SW", "RESUME/ACC SW", "SET SW" and "CANCEL SW" in "DATA MONITOR" mode.

MAIN SW, RESUME/ACC SW, SET SW and CANCEL SW

When switch is depressed: ON

When switch is released: OFF

Fig 1: Steering Switch Operation in Data Monitor Display

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Turn ignition switch ON.
Check voltage between ASCD control unit harness connector M35 terminal 11 (G/OR) and 24 (G).

Fig 2: ASCD Steering Switch Voltage Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

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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.