Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Kia Rondo L4-2.4LFACTORY OEM SERVICE PROCEDURE
Accelerator Pedal Position Sensor: Testing and Inspection
ACCELERATOR POSITION SENSOR (APS)
INSPECTION
FUNCTION AND OPERATION PRINCIPLE
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
SCHEMATIC DIAGRAM
COMPONENT INSPECTION
1. Connect a scan tool to the Diagnosis Link Connector(DLC).
2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
Specification: Refer to SPECIFICATION.
3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect APS connector and measure resistance between APS terminals 1 and 6 (APS 1).
Specification: Refer to SPECIFICATION.
5. Disconnect APS connector and measure resistance between APS terminals 4 and 5 (APS 2).
Specification: Refer to SPECIFICATION.
INSPECTION
Function And Operation Principle:
FUNCTION AND OPERATION PRINCIPLE
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:
SPECIFICATION
Schematic Diagram:
SCHEMATIC DIAGRAM
COMPONENT INSPECTION
1. Connect a scan tool to the Diagnosis Link Connector(DLC).
2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T.
Specification: Refer to SPECIFICATION.
3. Turn ignition switch OFF and disconnect the scantool from the DLC.
4. Disconnect APS connector and measure resistance between APS terminals 1 and 6 (APS 1).
Specification: Refer to SPECIFICATION.
5. Disconnect APS connector and measure resistance between APS terminals 4 and 5 (APS 2).
Specification: Refer to SPECIFICATION.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.