Tachometer Test
- Disconnect Blue/Yellow wire from ignition coil. Connect a signal generator and tachometer tester between Blue/Yellow wire and ground.
- Compare tester and tachometer indications. See TACHOMETER SPECIFICATIONS table. If indications are within specification, go to WARNING LIGHT SYSTEM CHECK. If indications are not within specification, replace tachometer.
TACHOMETER SPECIFICATIONS
| Standard Indication (RPM) | Allowable Range (RPM) |
|---|---|
| 1000 | 1000-1050 |
| 2000 | 2000-2050 |
| 3000 | 3000-3050 |
| 4000 | 4000-4050 |
| 5000 | 5000-5050 |
| 6000 | 6000-6050 |