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.
2006 Scion tC AutomaticFACTORY OEM SERVICE PROCEDURE
Typical Enabling Conditions
TYPICAL ENABLING CONDITIONS
| Accumulated time that all following conditions met | 30 seconds or more |
| Battery voltage | 11 V or more |
| Intake air temperature | -10°C (14°F) or more |
| Idle | OFF |
| Mass air flow rate | 6 to 35 g/sec |
| Engine RPM | Less than 4,500 rpm |
| Engine coolant temperature sensor | 75°C (167°F) or more |
| Fuel system status | Closed Loop |
| Rich experience | Yes |
| A/F sensor | Activated |
| HO2 sensor | Activated |
| Estimated catalyst temperature | Both of following conditions 1 and 2 met |
| 1. Up stream catalyst temperature | 550 to 900°C (1,022 to 1,652°F) |
| 1. Down stream catalyst temperature | 550 to 900°C (1,022 to 1,652°F) |
Factory Service Tools
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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.