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
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM control signal
which is calculated by the engine speed and load...
Description and operation
Description
Based on information from various sensors, the ECM can calculate the fuel amount
to be injected...
Other information:
Specifications
Fuel Delivery System
Items
Specification
Fuel Tank
Capacity
71L (18.7 U.S. gal., 75.0 U.S.qt., 61.7 lmp.qt.)
Fuel Filter
(Built into fuel pump assembly)
Type
Paper type
Fuel Pressure Regulator
(Built into fuel pump assembly)
Regulated Fuel Pressure
360 - 400 kPa (3...
The Head-Up Display is an optional
feature that allows the driver to view
information projected onto a transparent
screen while still keeping your
eyes safely on the road ahead while
driving.
Precautions while using the
head up display
It may sometimes be difficult to read
information on the head up display in
the following situations...
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