Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1991 Plymouth Colt Base, AutomaticFACTORY OEM SERVICE PROCEDURE
DRB-II Key Functions
- YES or Down Arrow & NO or Up Arrow Keys will move lines on screen up or down allowing user to choose an item or scroll through all selections available.
- F1 & F2 Keys Keys are used to scroll through sensor displays.
- ATM Key Key will return user to previous screen.
- ENTER Key Allows user to select a test or display. Flashing arrow must be on display user wishes to select. Pressing ENTER in sensor state will cause display to change from a 3-line display to a 1-line display.
- F3 Key Key is used to display a help screen. This key may be used at any time.
- Number Keys Keys are used for choosing a display or test by number for test or display.
- READ/HOLD Key Key is used to freeze any sensor display.
- MODE & ATM Keys Pressing MODE and ATM keys at same time will cause DRB-II to reset to copyright screen.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.