Millenia L V6-2.5L DOHC (1997)
Tachometer: Testing and Inspection
Inspection
1. Connect the Special Service Tool (SST) New Generation Star (NGS) tester to the data link connector-2 and battery.
2. Referring to the NGS operational manual, select the "PID DATA MONITOR" function.
3. Using the "PID DATA MONITOR" function, measure the engine speed.
4. Compare the values of the vehicle tachometer and the SST (NGS).
5. If not as specified, inspect the wiring harness (ECM/PCM) - instrument cluster).
6. If the wiring harness is normal, replace the tachometer.