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.
System Selection
Following trouble code display, the first available system selection level (i.e. "ECM?") will be displayed. See Figure . While selecting a system to test, any of the following actions may be taken to control the display:
- Pressing "OFF" button on CCDIC panel will stop the system selection process and return display to beginning of trouble code sequence.
- Pressing the "LO" fan button will display the next available system selection. This allows display to be stepped through all system selections. The list of systems can be repeated following the end of system selection list.
- Pressing the "HI" fan button will select the displayed system for testing.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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