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:
Repair procedures
Service Adjustment Procedure
Oil level Check
A check of ATF level is not normally required during
scheduled ...
Power Seat Motor. Repair procedures
Inspection
Power Seat Motor
1.
Disconnect the connectors for each motor.
A : Front height motor
B : Slide motor
C : Rear height motor
D : Re ...
Opening the fuel filler lid
The fuel filler lid must be opened from inside the vehicle by pushing the fuel
filler lid opener button.
✽ NOTICE
If the fuel filler lid will not open because ice has formed around it, ...
