Engine Speed Signal Inspection

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

CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Start engine and select "METER A/C AMP" on CONSULT-II.
2. Using "TACHO METER" on the data monitor, compare the value of data monitor with tachometer pointer of combination meter.
OK or NG
1. OK: GO TO 2.
2. NG: Replace the combination meter, refer to "REMOVAL AND INSTALLATION OF COMBINATION METER ".
Fig 1: Checking Unified Meter And A/C Amp. Output Signal
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select "ENGINE" on CONSULT-II.
2. Using "ENG SPEED" on the data monitor, print out the CONSULT-II screen when the engine is idling.
3. Select "METER A/C AMP" on CONSULT-II.
4. Using 'TACHOMETER" on the data monitor, compare the value of data monitor of the idling speed with that of the "ENG SPEED".
  
  Fig 2: Checking Unified Meter And A/C Amp. Input Signal
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Perform ECM self-diagnosis. Refer to CONSULT-II FUNCTION .
2. NG: Replace the unified meter and A/C amp. Refer to REMOVAL AND INSTALLATION OF UNIFIED METER AND .