DR-18A Sensor Calibrations-Coolant Temperature

Complete Driveability Test 1, Step A or N before proceeding.

This test must be performed with engine warm.

1. With diagnostic read-out tool connected to engine test connector, start engine.
2. Place system in Engine Running Test Mode 64.
3. If reading shows between 180°---250°F, proceed to Test 18 step B.
4. If reading is not between 180°---250°F, replace coolant sensor.