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.
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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (ENGINE CONTROLS (2ZZ-GE) - DIAGNOSTICS)CIRCUIT INSPECTIONDTC P0136: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2)CONFIRMATION DRIVING PATTERN
2004 Toyota Celica GT, Standard
Confirmation Driving Pattern
2004 Toyota Celica GT, StandardSECTION Confirmation Driving Pattern
WARNING: This page is about a different variant/trim than selected.
- Connect the hand-held tester to the DLC3.
- Switch the hand-held tester from the normal mode to the check mode (See PRE-CHECK ).
- Start the engine and let it idle for 60 seconds or more.
- Drive the vehicle at 25 mph (40 km/h) or more for 40 seconds or more.
- Let the engine idle for 10 seconds or more.
- Perform steps (d) and (e) 12 times.
HINT:
If a malfunction exists, the MIL will be illuminated on the multi information display during step (f).
NOTE:
If the conditions in this test are not strictly followed, detection of a malfunction will not occur. If you do not have a hand-held tester, turn the ignition switch OFF after performing steps from (c) to (f), then perform steps from (c) to (f) again.
RENDER: 1.0x
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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.