Hyundai Sonata: Engine Control System / 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 |
| TPS 2 fault | ECM looks at TPS1 | |
| TPS 1,2 fault | Throttle valve stuck at 7° | |
| APS | APS 1 fault | ECM looks at APS 2 |
| APS 2 fault | ECM looks at APS 1 | |
| APS 1,2 fault | Engine idle state | |
When throttle value is stuck at 7°, engine speed is limited
at below 1,500rpm and vehicle speed at maximum 40 ~ 50 km/h (25 ~ 31
mph) |
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 cab ...
ETC (Electronic Throttle Control) System Specifications
Specification
[Throttle Position Sensor (TPS)]
Throttle angle(°)Output Voltage (V)TPS1TPS200.504.50100.964.05201.413.59301.873.14402.322.68502.782.23603.231.77703.691.32804.140.86904.600.41984.65 ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Fuel Pressure Sensor (FPS) Description and Operation
Description
The fuel pressure sensor (FPS) is installed on the top of the
low pressure fuel pump and measures the pressure in the low pressure
fuel line.
Based on the fuel pressure measured by the FPS and the amount
of fuel consumed, the fuel pump control module (FPCM) determines
whether ...
Hyundai Sonata LF 2014-2019 Service Manual: Camshaft Position Sensor (CMPS) Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification: Refer to “Wave Form”
Removal
•
DON’T remove the camshaft position sensor while the engine
is running or right after engine is turned off. The part and engine ...
