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TEST TYPE SELECTION GMC Forward Control P3500

Diagnosis - A/t: Diagnosis ~156 words

TEST TYPE SELECTION

  1. After the diagnostic system has been selected, 6 test types are now made available for selection. The menu choices are: CLEAR CODES?, DATA?, INPUTS?, OUTPUTS?, OVERRIDE? and SNAPSHOT?. The Season Odometer/DIC display may be showing any one of these 6 test type choices. The Trip Odometer or DIC will display selected value as seen by computer. see scheme 6- see scheme 13.
  2. To advance the display, depress FAN DOWN button on the ECCP. When the desired test type is displayed, depress the FAN UP button on the ECCP.

Note. To cancel a system selection and repeat the system selection process, depress the OFF button on the ECCP for non-CRT equipped vehicles or touch LEVL key on CRT monitor panel for CRT equipped vehicles. To exit diagnostics without clearing codes, depress the BI-LEV button on ECCP or touch RTN key on CRT monitor panel.

The 6 test types are as follows