Gauge Reads Low

1. Remove lead at sensor, measure resistance using a suitable ohmmeter.
2. At 40°C (104 °F) resistance should be approximately 1200-1350 ohms, and at 125°C (257 °F) resistance should be approximately 53-55 ohms.
3. If not within specifications, replace sensor.
4. Disconnect lead at sensor and gauge, check for a high resistance using a suitable ohmmeter. Repair wiring if necessary.