Repair Procedures: Inspection: Tachometer
- Connect the scan tool to the diagnostic link connector or install a tachometer.
- With the engine started, compare the readings of the tester with that of the tachometer. Replace the tachometer if the tolerance is exceeded.
CAUTION:
- Reversing the connections of the tachometer will damage the transistor and diodes inside.
- When removing or installing the tachometer, be careful not to drop it or subject it to severe shock.
TOLERANCE SPECIFICATIONS
| Revolution (rpm) |
1,000 | 2,000 | 3,000 | 4,000 | Remark |
| Tolerance (rpm) |
±120 | ±140 | ±170 | ±170 | Gasoline |
| Revolution (rpm) |
5,000 | 6,000 | 7,000 | 8,000 | Remark |
| Tolerance (rpm) |
±200 | ±240 | ±260 | ±260 | Gasoline |