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 5В°
TPS
TPS 1 fault
ECM looks at TPS2
...
See also:
Crankshaft Position Sensor (CKPS). Description and Operation
Description
Crankshaft Position Sensor (CKPS) detects the crankshaft position and
is one of the most important sensors of the If there is no CKPS signal input,
the engine may stop because of ...
Delivery Pipe. Repair procedures
Removal
In case of removing the high pressure fuel pump, high pressure
fuel pipe, delivery pipe, and injector, there may be in ...
Schematic Diagrams
Circuit Diagram (1)
Circuit Diagram (2)
...
