Hyundai Santa Cruz Owners & Service Manuals

Hyundai Santa Cruz: Engine Control System / Accelerator Position Sensor (APS)

- 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.

- Specification
ItemsSpecification
APS 1APS 2
C.T0.7 - 0.80.33 - 0.43
W.O.T3.98 - 4.221.93 - 2.17

- Circuit Diagram

Harness Connector

- Inspection

1.In the engine control system, failure can be quickly diagnosed by using the diagnosis tool.

(1)Self diagnosis : Checking failure and code number (DTC).

(2)Current data : Checking the system input/output data state.

(3)Actuation test : Checking the system operation condition.

(4)Additional function : Controlling other features including system option setting and zero point adjustment.

Component Inspection

1.Connect the diagnostic tool to the Data Link Connector (DLC).

2.Turn the ignition switch ON.

3.Measure the output voltage of the APS 1 and 2 at C.T and W.O.T.

Specification : Refer to Specification.

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