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.
Waveform 13
- Cooling Fan
| Symbols (Terminal No.) | RFC (E6-10) - E1 (E3-7) |
| Tester Range | 1 V/DIV, 20 msec./DIV |
| Condition | Idling and A/C: ON |
HINT:
The duty ratio (labeled A and B in Fig 1) changes depending on the engine coolant temperature.
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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