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.
Diagnostic Procedure
- CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
DIAGNOSTIC PROCEDUREMONITOR ITEM CONDITION SPECIFICATION CRUISE LAMP - Ignition switch: ON
MAIN switch: Pressed at the 1st time --> at the 2nd time ON --> OFF SET LAMP - MAIN switch: ON
- When vehicle speed is between 40 km/h (25 MPH) and 144 km/h (89 MPH)
ASCD: Operating ON ASCD: Not operating OFF OK or NG
OK : INSPECTION END
NG : GO TO 2.
- CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
OK or NG
OK : GO TO 3.
NG : Perform trouble diagnoses for DTC U1000, U1001. Refer to , "DTC U1000, U1001 CAN COMMUNICATION LINE ".
- CHECK COMBINATION METER FUNCTION
Does combination meter operate normally?
Yes or No
Yes : GO TO 4.
No : Go to , "COMBINATION METER ".
- CHECK INTERMITTENT INCIDENT
Refer to , "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
: INSPECTION END
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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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