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.

Turn ignition switch to ON position.
Turn ASCD main switch to ON and check if the "set indicator" blinks.
If the indicator lamp blinks, check the following .
- ASCD steering switch. Refer to ASCD STEERING SWITCH CHECK .
Fig 1: Identifying Indicator Lamp
Courtesy of NISSAN MOTOR CO., U.S.A.
Drive the vehicle at more than 40 km/h (25 MPH) and push SET/COAST switch.
If the indicator lamp blinks, check the following .
- Vehicle speed sensor. Refer to VEHICLE SPEED SENSOR CHECK .
- ASCD pump circuit. Refer to ASCD PUMP CIRCUIT CHECK .
- If vehicle speed sensor and ASCD pump circuit are OK, replace ASCD control unit.
Fig 2: Drive Vehicle with SET/COAST switch "ON"
Courtesy of NISSAN MOTOR CO., U.S.A.
Depress brake pedal slowly (brake pedal should be depressed more than 5 seconds).
If the indicator lamp blinks, check the following .
- ASCD brake/stop lamp switch. Refer to ASCD BRAKE/STOP LAMP SWITCH CHECK .
END. (System is OK.)

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.

Safety Warning

Fail-Safe System Check

Use the Manual With the Right Hardware

When to See a Mechanic

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