Test 2

Tests 2 and 3 check the ambient air temperature sensor and speed input circuits. Switch the ENGLISH/METRIC switch to ENGLISH. The trip computer will display the condition of the temperature indicator lights. If a failure of the ambient air temperature sensor input is detected, the letters "CO" will display for an open circuit. The letters "CS" will display for a short circuit. If there is no failure, the instantaneous temperature will be displayed.