Electronic Controlled Fuel System C8.3 Industrial Page 1-14 Section 1 - Operating Instructions Engine Diagnostics When a fault or maintenance lamp is lit, the engine diagnostics switch allows the operator to view the fault codes. The receptacle to the right of the switch is for the technician's computer connection, using either INSITE™ or Echek™ service tool. Active fault codes can be viewed using the stop engine warning lamp as described below. To view the fault codes: 1 The engine must be shut off ( not running). 2 The keyswitch must be in the ON position. 3 The ENG DIAG switch (1) must be in the ON position.
The CHECK ENGINE and STOP ENGINE lamps flash if there are any fault codes to display. If there are no fault codes to display, the CHECK ENGINE and STOP ENGINE lamps will remain lit. If there are fault codes to be displayed, the check engine lamp will flash momentarily. Then the stop engine lamp will flash the first, second, and third digits of the fault code. Example: Fault Code 432 4 flashes, pause 3 flashes, pause 2 flashes NOTE: The check engine lamp will flash between each fault code. The pattern repeats itself until the fault is cleared or the switch is turned off.