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.
Dual Led System (5 Modes): Notes
Self-diagnostic system can be operated in one of 5 modes. Modes are manually changed using screwdriver through access port on ECU. With screwdriver turned fully clockwise, inspection lights will begin to flash. Count the number of flashes. First flash is mode I, second flash is mode II, etc. When desired mode has been indicated, turn screwdriver fully counterclockwise. In different modes, Red and Green LED's perform different functions.
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.