Tachometer

Tests 593 - 597:

Tests 598 - 601:

SYMPTOM
* TACHOMETER

POSSIBLE CAUSES
- Instrument tachometer defective
- DRB displays ram fault
- BCM TACH input/output defective
- Instrument cluster circuit board defective
- Tachometer/speedometer gauge pack
- DRB shows bus operational failure
- MIC cluster mismatch