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Home >> Oldsmobile >> 1990 >> Custom Cruiser >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Tests W/Codes - ECM) >> Manual Operation Of Service Mode >> Making Specific Test Selection

Making Specific Test Selection

WARNING: This page is about a different car, the 1990 Buick Riviera and 1990 Buick Reatta. However, it is still accessible from the selected car via links, so may be relevant.

Scrolling to a lower specific test number is done by depressing the FAN DOWN button. Scrolling to a higher specific test number is done by depressing the FAN UP button. The system will automatically display the values for whatever specific test number is displayed.

NOTE: To cancel a specific test type selection and activate a repeat of the specific test type selection process, depress the OFF button on ECCP.