Hyundai Sonata: ETC (Electronic Throttle Control) System. Description and Operation
Description
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.
Schematic Diagram
Engine Control Module (ECM). Repair procedures
Removal
When replacing the ECM, the vehicle equipped with the immobilizer
must be performed procedure as below.
...
ETC (Electronic Throttle Control) System. Troubleshooting
Fail-Safe Mode
Item
Fail-Safe
ETC Motor
Throttle valve stuck at 5°
TPS
TPS 1 fault
ECM looks at TPS2
...
See also:
Description and Operation
Description
Mobile Telemetics System (MTS)
Hyundai motor companies are now faced with the task of shifting their
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Sunroof Motor. Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the overhead console and roof trim.
(Refer to the BD group - &quo ...
Electrical System
1.
Be sure to disconnect the battery cable from the
negative (-) terminal of the battery.
2.
Never pull on the wires when disconnecting c ...
