Hyundai Veloster: Manual climate control system

1. Turn the ignition switch to the ON position.
2. Select the defrost button
(
).
3. Press the air intake control
button at least 5 times within 3 seconds.
The indicator on the air intake button blinks 3 times with 0.5 seconds of interval. It indicates that the defogging logic is canceled or returned to the programmed status.
If the battery has been discharged or disconnected, it resets to the defog logic status.
Defogging logic
Automatic climate control systemServicing The Electrical System
1.
Prior to servicing the electrical system, be sure to turn off
the ignition switch and disconnect the battery ground cable.
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Knock Sensor (KS). Schematic Diagrams
Circuit Diagram
...
ETC (Electronic Throttle Control) System. Troubleshooting
Fail-Safe Mode
Item
Fail-Safe
ETC Motor
Throttle valve stuck at 7°
TPS
TPS 1 fault
ECM looks at TPS2
...