2. Check Vehicle Speed Input

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 "VHCL SPEED SE" in "DATA MONITOR" mode while driving.

NOTE:

This test may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
Always drive vehicle in safe speed and manner according to traffic conditions and obey all traffic laws.
Is actual vehicle speed indicated?

Without CONSULT-II

Apply wheel chocks and jack up drive wheels.
Disconnect ASCD control unit connector.
Turn ignition switch ON.
Check voltage between ASCD control unit harness connector M35 terminal 22 (PU/W) and ground with turning drive wheels slowly by hand.
Dose voltage pointer deflect?

Fig 1: Checking Vehicle Speed Input Circuit

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

Refer to wiring diagram in SYSTEM WIRING DIAGRAMS .

Yes or No

Yes: Vehicle speed sensor is OK.
No: Check harness for open or short between ASCD control unit and combination meter.