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.

2008 Kia AmantiFACTORY OEM SERVICE PROCEDURE

Input Speed Sensor: Description

INPUT SPEED SENSOR DESCRIPTION

Sensor type	Type: HALL SENSOR Operating voltage: DC 12V Current consumption: 22mA (Max)
Function	Input shaft speed sensor: Detect the input shaft rotation at the OD & REV retainer side to control oil pressure when shifting. Feedback control, clutch-clutch control, damper clutch control, shift range control, incorrect ratio control and sensor trouble detection signal.
Connector	Courtesy of KIA MOTORS AMERICA, INC.

Fig 1: Identifying Input Speed Sensor

Courtesy of KIA MOTORS AMERICA, INC.

INPUT SPEED SENSOR REFERENCE

Item	Inspection item	Standard value
Air gap	Input shaft speed sensor	0.05in (1.3mm)
Sensor resistance	Input shaft speed sensor	Over 1 MΩ
Output voltage	HIGH	Over 4.8V
Output voltage	LOW	Below 0.8V

Factory Service Tools

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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.