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.
Inspection Procedure
HINT:
When U0123/62, U0124/69 or U0126/63 is output together with C1336/39, inspect and repair trouble areas indicated by U0123/62, U0124/69 or U0126/63 first.
- CHECK SENSOR USING TEST MODE PROCEDURE
- Perform the test mode procedure (See TEST MODE PROCEDURE ).
- Check if any of the test mode DTCs are recorded.
Result
RESULT REFERENCEResult Proceed to DTC (test mode DTC) is not output A DTC (test mode DTC) is output B
B: REPAIR SENSORS INDICATED BY OUTPUT DTCS (See DIAGNOSTIC TROUBLE CODE CHART )
A: Go to Next Step
- CHECK YAW RATE SENSOR INSTALLATION
- Check that the yaw rate sensor has been installed properly (See INSTALLATION
).
OK: The sensor is tightened to the specified torque.
The sensor is not tilted.
NG: INSTALL YAW RATE SENSOR CORRECTLY
OK: Go to Next Step
- Check that the yaw rate sensor has been installed properly (See INSTALLATION
).
- PERFORM DECELERATION SENSOR ZERO POINT CALIBRATION
- Perform zero point calibration of the deceleration sensor (See CALIBRATION ).
- RECONFIRM DTC
- Clear the DTC (See DTC CHECK/CLEAR ).
- Start the engine.
- Check if the same DTC is recorded (See DTC CHECK/CLEAR
).
Result
RESULT REFERENCEResult Proceed to DTC is output A DTC is not output B HINT:
- The DTC is set if the zero point calibration has not been completed successfully.
- End the procedure when the same DTC is not set after completion of the zero point calibration.
B: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (See HOW TO PROCEED WITH TROUBLESHOOTING )
A: REPLACE VSC ACTUATOR ASSEMBLY (See REMOVAL )
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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