One Gauge Not Operating Properly

SYMPTOM
* ONE GAUGE NOT OPERATING PROPERLY

POSSIBLE CAUSES
- Gauge not reading 4 PSI> engine warm at idle
- Oil gauge not reading 4 PSI Or > at idle
- Oil level low
- Instrument cluster circuit board defective
- Oil pressure sensor defective
- Instrument cluster defective
- Oil pressure sense circuit open
- Oil pressure sense signal CKT short to ground
- Cooling system operation faulty
- DRB shows ECT sensor voltage too high
- DRB shows ECT sensor voltage too low
- Check for PCM DTC'S
- Defective JTEC module
- Fuel gauge inoperative
- JTEC module defective
- Oil pressure switch defective
- Pinion factor incorrect
- Powertrain control module defective
- Tachometer inoperative
- Voltage gauge inoperative