DR-13A Calibrations Engine Coolant Temperature Sensor

1. Connect diagnostic read-out tool to engine test connector.
2. Start engine, then enter system into Engine Running Test Mode 64. Display reading must be multiplied by ten to determine actual reading.
3. If display indicates ambient temperature ±10°F, proceed to step B. DR-13B Sensor Calibrations (Throttle Position)
4. If display indicates above or below ambient temperature ±10°F, replace coolant sensor.