Hyundai Palisade: Engine Control System / Accelerator Position Sensor (APS)
Description and operation
Installed on the accelerator pedal module, the Accelerator Position Sensor (APS)
detects the rotation angle of the accelerator pedal. The APS is one of the most
important sensors in engine control system. Therefore, each of the two sensors
comprising the APS has individual power and ground line. The second sensor monitors
the first and its output voltage is half the first one. If the ratio of the
sensor 1 to 2 is out of the range (approximately 1/2), the diagnostic system
judges that it is abnormal.

Specifications
Accelerator
Position
|
Output Voltage (V) [Vref = 5V]
|
APS1
|
APS2
|
C.T
|
0.7 - 0.8
|
0.33 - 0.43
|
W.O.T
|
3.85 - 4.35
|
1.93 - 2.18
|

Schematic diagrams

Harness Connector

Repair procedures
1. |
Connect the diagnostic tool on the Data Link Connector (DLC).
|
2. |
Switch "ON" the ignition.
|
3. |
Measure the output voltage of the APS 1 and 2 at C.T and W.O.T.
Accelerator Position
|
Output Voltage (V) [Vref = 5V]
|
APS1
|
APS2
|
C.T
|
0.7 - 0.8
|
0.33 - 0.43
|
W.O.T
|
3.85 - 4.35
|
1.93 - 2.18
|
|
1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
2. |
Disconnect the accelerator position sensor connector (A).
|
3. |
Remove the accelerator position sensor (B) after loosening the mounting
bolts.
Accelerator pedal sensor mounting bolt :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)
|

|
1. |
Install in the reverse order of removal.
|
Description and operation
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Other information:
■ Blade type fuse
■ Cartridge type fuse
1. Turn the engine off.
2. Turn all other switches OFF.
3. Remove the fuse panel cover by
pressing the tap and pulling up.
4. Check the removed fuse; replace
it if it is blown. To remove or insert
the fuse, use the fuse puller in the
engine compartment fuse panel...
Towing
If the vehicle needs to be towed, call a professional towing service. Never
tow vehicle with just a rope or chain. It is very dangerous.
[Front]
[Rear]
Emergency Towing
There are three popular methods of towing a vehicle :
–
The operator loads the vehicle on the back of truck...
Categories

Even though your vehicle is equipped
with the OCS, never install a child
restraint in the front passenger's seat.
An inflating air bag can forcefully
strike a child or child restraint resulting
in serious or fatal injury.
read more