Test Choice Selection: Notes

WARNING: This page is about a different car, the 1988 Cadillac Seville and 1988 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

Selection of "DATA?", "INPUTS?", or "OVERRIDE?" test types will result in the first available test being displayed. See Figure . If dashes ever appear, this test is not allowed with engine running.

Four characters of the display will contain a test code to identify the selection. The first 2 characters are letters which identify the system and the test type (i.e. ED for ECM data), last 2 characters numerically identify the test (i.e. ED01 for throttle position). When selecting a specific, the following actions may be taken to control the display:

Pressing "OFF" button on CCDIC will stop the test selection process and return display to the next available test type for the selected system.
Pressing the "LOW" fan button will display the next smaller test number for the selected test type. If this button is touched with the lowest test number displayed, the highest test number will then appear.
Pressing the "HI" fan button will display the next larger test number for the selected test type. If this button is touched with the highest test number displayed, the lowest test number will then appear.