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.
DTC Confirmation Procedure
- CHECK DTC PRIORITY
If DTC P1212 is displayed with DTC UXXXX or P0607, first perform the confirmation procedure (trouble diagnosis) for DTC UXXXX or P0607.
Is DTC UXXXX or P0607 detected?
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Perform diagnosis of applicable.
- DTC UXXXX: Refer to DTC Index .
- DTC P0607: Refer to DTC Description .
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GO TO 2.
- PRECONDITIONING
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.
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GO TO 3.
- PERFORM DTC CONFIRMATION PROCEDURE
- Start engine and let it idle for at least 10 seconds.
- Check 1st trip DTC.
Is DTC P1212 detected?
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Proceed to Diagnosis Procedure .
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To check malfunction symptom before repair: Refer to Intermittent Incident .
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Confirmation after repair: INSPECTION END
NO RELATED
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.