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.
Work Procedure
- PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
- Battery temperature: More than 5 deg.C (41 deg.F)
- Engine coolant temperature: More than 70 deg.C (158 deg.F)
- Shift lever: P or N
- Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
- Vehicle speed: Stopped
- Transmission: Warmed-up
- Drive vehicle for 10 minutes.
Do you have CONSULT?
YES
GO TO 2.
- AIR FUEL RATIO INITIAL LEARNING
With CONSULT
- Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING". Refer to Description .
- Perform "THROTTLE VALVE CLOSED POSITION LEARNING". Refer to Description .
- Start engine and warm it up to normal operating temperature.
- Select "A/F INITIAL LEARNING" in "WORK SUPPORT" mode of "ENGINE" using CONSULT.
- Touch "START" and wait 20 seconds.
"CMPLT" displayed on CONSULT screen?
YES
INSPECTION END
NO
GO TO 3.
- DETECT MALFUNCTIONING PART
Engine component parts and their installation condition are questionable. Check and eliminate the cause of the incident.
It is useful to perform "TROUBLE DIAGNOSIS - SPECIFICATION VALUE". Refer to Description .
If any of the following conditions occur after the engine has started, eliminate the cause of the incident and perform "AIR FUEL RATIO INITIAL LEARNING" all over again:
- Engine stalls
- Erroneous idle
INSPECTION END
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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