LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 1990 >> Reatta 2D Convertible, 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - BCM >> Manual Operation Of Service Mode >> Explanation Of Specific Test Selection

Explanation Of Specific Test Selection

  1. Following test type selection, the first of many specific tests will be made available for selection. The 4 characters of this display represent a test code. The first 2 characters of the test code are alphabetic letters which identify both the system and test type already selected. Study the following examples:
    • If the BCM system and DATA test type were selected, BD will be the first 2 characters of the display. BD stands for BCM DATA. The last 2 characters numerically identify the specific test selection. For example: BD51 designates BCM DATA, test 51.
    • If the ECM system and Data test type were selected, ED will be the first 2 characters of the display. ED stands for ECM DATA. The numerals following these 2 characters will represent the particular specific test selection.
    • When BI appears as the first 2 characters of the test code, this signifies the BCM system and INPUT test type were selected. The last 2 characters numerically identify the specific test selection. For example: BI51 designates BCM INPUT, test 51.
scientia non olet · About LEMON Manuals