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.
Typical Enabling Conditions
Case 1: ECT is between 35 and 60°C (95 and 140°F)
| Monitor will run whenever these DTCs are not present | P0100, P0101, P0102, P0103 |
| Cumulative idle off period | 250 seconds or more |
| Frequency of the following condition (a) is met | 10 times |
| (a) Vehicle speed increase | 19 mph (30 km/h) or more |
| Engine coolant temperature | 35 to 60°C (95 to 140°F) |
| Intake air temperature | -6.7°C (20°F) or higher |
Case 2: ECT is higher than 60°C (140°F)
| Monitor will run whenever these DTCs are not present | P0100, P0101, P0102, P0103 |
| Engine coolant temperature | 60°C (140°F) or higher |
| Intake air temperature | -6.7°C (20°F) or higher |
| Frequency that vehicle is driven by the following conditions (a) to (d) is met | Once |
| (a) Engine idling period | 20 seconds or more |
| (b) Acceleration period: Duration that vehicle speed reaches to 70 km/ h (43.5 mph) | Within 40 seconds |
| (c) Intake air temperature: Duration that vehicle is driven by 65 to 70 km/h (40 to 43.5 mph) | 30 seconds or more |
| (d) Intake air temperature: Duration that vehicle speed drops to 3 km/h (2 mph) | Within 35 seconds |
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.
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