Hyundai Sonata: Accelerator Position Sensor (APS). Description and Operation
Description
Accelerator Position Sensor (APS) is installed on the accelerator pedal
module and detects the rotation angle of the accelerator pedal. The APS is one
of the most important sensors in engine control system, so it consists of the
two sensors which adapt individual sensor power and ground line. The second
sensor monitors the first sensor and its output voltage is half of the first
one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2),
the diagnostic system judges that it is abnormal.
Rail Pressure Sensor (RPS). Repair procedures
Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the RPS at idle and various engine speed. ...Accelerator Position Sensor (APS). Specifications
Specification Accelerator Position Output Voltage (V) APS1 APS2 C.T 0.7 ~ 0.8 0.29 ~ 0.46 ...See also:
Knock Sensor (KS). Repair procedures
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative
(-) cable.
2.
Remove the intake manifold (Refer to “Intake ...
Identification Number Locations
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Troubleshooting
Troubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers
indicate the priority of the like cause of the problem. Check each ...