Hyundai Santa Fe: ETC (Electronic Throttle Control) System / Description and operation
The Electronic Throttle Control (ETC) System consists of a throttle body with
an integrated control motor and throttle position sensor (TPS). Instead of the
traditional throttle cable, an Accelerator Position Sensor (APS) is used to
receive driver input. The ECM uses the APS signal to calculate the target throttle
angle; the position of the throttle is then adjusted via ECM control of the
ETC motor. The TPS signal is used to provide feedback regarding throttle position
to the ECM. Using ETC, precise control over throttle position is possible; the
need for external cruise control modules/cables is eliminated.


Fail-Safe Mode
Item
Fail-Safe
ETC Motor
Throttle valve stuck at 5°
TPS
TPS 1 fault
Replace it with TPS2
TPS 2 fault
Replace it with TPS1
TPS 1, 2 fault
Throttle valve stuck at 5°
APS
TPS 1 fault
Replace it with TPS2
TPS 2 fault
Replace it with TPS1
TPS 1, 2 fault
Throttle valve stuck at 5°
•
When throttle value is stuck at 5°, engine speed is limited
at below 1,500rpm and vehicle speed at maximum 40 - 50 km/h
(25 - 31 mph)...
Other information:
If you have a flat tire, the Low Tire Pressure and Position telltales will come
on. We recommend that you have the flat tire repaired by an authorized HYUNDAI dealer
as soon as possible or replace the flat tire with the spare tire.
NOTICE
It is recommended that you do not use a puncture-repairing agent not approved
by HYUNDAI dealer or the equivalent specified for your vehicle to repair and/or
inflate a low pressure tire...
Failure Diagnosis
1.
In principle, ESP and TCS controls are prohibited in case of ABS failure.
2.
When ESP or TCS fails, only the failed system control is prohibited.
3...
Categories

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