Hyundai Creta: Automatic Transaxle Control System / Input Speed Sensor

Description and operation

Description
Input speed sensor uses an electric current type hall sensor in which the current is changed by the magnetic variation.
Input speed sensor (A) and output speed sensor are integrated and installed in the transaxle.

Functions
Measures the rate of rotation of the input shaft inside the transaxle and delivers the readings to the TCM.
The sensor provides critical input data that's used in feedback control, torque converter clutch control, gear setting control, line pressure control, clutch activation pressure control, and sensor fault analysis.

Specifications

Specifications
▷ Type: Hall Effect Sensor
Operation condition [°C(°F)]
(-40 ~ 150) -40 ~ 302
Output voltage (V)
High
1.18 ~ 1.68
Low
0.59 ~ 0.84

Schematic diagrams

Circuit Diagram

Repair procedures

Inspection
1.
Using the GDS, check the input / output speed sensor waveforms.
Turn the ignition key OFF
Connect the GDS to the Data Link Connector (DLC) on the lower crash pad.
Turn the ignition key ON and the engine ON.
Check the input / output speed sensor waveforms at high speed and low speed.
Fig 1) Input / Output speed sensor at low speed

Fig 2) Input / Output speed sensor at high speed

Removal
1.
Remove the valve body assembly.
(Refer to Valve body System - "Valve Body")
2.
Disconnect the input & output speed sensor connector (A) from the main wiring.
3.
Remove the input & output speed sensor (B) after removing the bolts (2ea).
Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

Installation
1.
To install, reverse the removal procedure.
2.
Check fluid level after filling the automatic transaxle with fluid.
(Refer to Hydraulic System - "Fluid")
Transaxle Oil Temperature Sensor
Description and operation Description • Transaxle oil temperature sensor monitors the automatic transaxle fluid's temperature and conveys the readings to T ...

Output Speed Sensor
Description and operation Description • Output speed sensor uses an electric current type hall sensor in which the current is changed by the magnetic variation ...

Other information:

Hyundai Creta GS 2014-2025 Owners Manual: Low tire pressure telltale
When the tire pressure monitoring system warning indicator is illuminated, one or more of your tires is significantly under-inflated. If the telltale illuminates, immediately reduce your speed, avoid hard cornering and anticipate increased stopping distances. You should stop and che ...

Hyundai Creta GS 2014-2025 Owners Manual: Warning and indicator lights
Air bag Warning Light Once you set the ignition switch or Engine Start/Stop button to the ON position. - It illuminates for approximately 6 seconds and then goes off. When there is a malfunction with the SRS. In this case, we recommend that you have the vehicle inspected ...

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