Hyundai Sonata LF: Engine Control System / ETC (Electronic Throttle Control) System Repair procedures
Throttle Position Sensor (TPS)
| 1. |
Connect the GDS on the Data Link Connector (DLC). |
| 2. |
Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T.
Specification: Refer to “Specification”
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ETC Motor
| 1. |
Turn the ignition switch OFF. |
| 2. |
Disconnect the ETC module connector. |
| 3. |
Measure resistance between the ETC module terminals 1 and 2. |
| 4. |
Check that the resistance is within the specification.
Specification: Refer to “Specification”
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| 1. |
Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. |
Remove the resonator and the air intake hose.
(Refer to Engine Mechanical System - “Air Cleaner”) |
| 3. |
Disconnect the ETC module connector (A). 
|
| 4. |
Remove the installation bolts, and then remove the ETC module (A) from the engine. 
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| • |
Install the component with the specified torques. |
| • |
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
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| 1. |
Install in the reverse order of removal.
Electronic throttle body Installation bolt:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.7 ~ 7.2 lb-ft)
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| ETC module learning procedure |
When installing new ETC module or re-installing it, ETC module learning procedure must be performed.
| 1. |
Hold the ignition key or the start button at th IG ON position during 5 seconds. |
| 2. |
Turn ignition swich OFF and then start the engine. |
|
DTC codes (P0638, P2110) might be displayed if ETC module learning procedure does not performed after replacing ETC module. |
Description
Manifold Absolute Pressure Sensor (MAPS) is a speed-density
type sensor and is installed on the surge tank. It senses absolute
pressure of the surge tank and transfers the analog signal proportional
to the pressure to the ECM...
Other information:
Description
Engine Coolant Temperature Sensor (ECTS) is located in the
engine coolant passage of the cylinder head for detecting the engine
coolant temperature. The ECTS uses a thermistor that changes resistance
with the temperature.
The electrical resistance of the ECTS decreases as the
temperature increases, and increases as the temperature decreases...
Replacement
1.
If the compressor is marginally operable, run the engine at
idle speed, and let the air conditioning work for a few minutes, then
shut the engine off.
2.
Disconnect the negative (-) battery terminal.
3.
Recover the refrigerant with a recovery/charging station...
Manifold Absolute Pressure Sensor (MAPS) Description and Operation