Tachometer System

WARNING: This page is about a different car, the 2005 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

VISUAL INSPECTION
Check if tachometer fluctuates when the engine starts.

Is the fluctuation acceptable?
- YES: GO TO 2.
- NO: GO TO 3.
ENGINE SPEED INSPECTION
1. Select "ENGINE" on CONSULT-II.
2. Using "ENG SPEED" on "DATA MONITOR", compare the value of "DATA MONITOR" with tachometer pointer of combination meter.
  OK or NG
  - OK: GO TO 3.
  - NG: Replace the combination meter. Refer to "COMBINATION METER ".
    
    Fig 1: Identifying Scan Tools Display (Data Monitor)
    Courtesy of NISSAN MOTOR CO., U.S.A.
3. ECM SYSTEM INSPECTION
  Perform ECM self-diagnosis.
  
  OK or NG
  - OK: Replace combination meter. Refer to "COMBINATION METER ".
  - NG: Go to ECM trouble diagnosis. Refer to TROUBLE DIAGNOSIS (QR25DE) or TROUBLE DIAGNOSIS (VQ35DE) .