Display Group 01, Field 1, Engine Coolant Temperature (ECT)
If displayed value is not 85-105°C, check codes. Check for faulty ECT sensor, wiring or ECM.
NOTE:
When engine speed is increased, voltage increases to 2.500 volts, drops to zero volts, then increases. On vehicles with a new engine, mass airflow sensor output voltage of 1.690 volts is acceptable.