Hyundai Palisade (LX2): Automatic Transaxle Control System / Speed Sensor

Hyundai Palisade (LX2) 2020-2026 Service Manual / Automatic Transaxle System (A8LF1) / Automatic Transaxle Control System / Speed Sensor

Specifications

Specification
â–·Type : Hall effect sensor
Item
Specification
Operating condition (°C)°F
 (-40 to 150) -40 to 302
Output voltage (V)
 High
 1.18 - 1.68
Low
 0.59 - 0.84

Components and components location

Component Location

Hyundai Palisade. Components and components location

1. Input speed sensor
2. Output speed sensor

 3. Middle speed sensor

Schematic diagrams

Circuit Diagram

Hyundai Palisade. Schematic diagrams

Repair procedures

Inspection
Hyundai Palisade. Repair procedures   
•
Refer to the DTC manual for the check procedure.
Removal
Hyundai Palisade. Repair procedures   
•
When the solenoid valve Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
•
Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
•
Maintain clean condition so that foreign substance does not get into the automatic transaxle.
•
Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.
•
Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
3.
Remove the air duct and air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
5.
Drain the coolant.(If equipped ATF warmer)
(Refer to Engine Mechanical System - "Coolant")
6.
Loosen the drain plug (A) and reinstall the drain plug after draining ATF totally.
Tightening torque :
33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures   
•
Replace the gasket before reinstalling the drain plug.
7.
Loosen the fixing bolt (A) and then removing the bracket.
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures
8.
Loosen the fixing bolts (A) and then removing the bracket.
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures
9.
Separate the ATF cooler hose (A).

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures   
•
Carefully install the clamp not to damage the hose.
•
Install the clamp in a correct direction not to be interfered with other parts.
•
After the installation, start the engine and then check if there are any leakages from the hose.
10.
Loosen the upper bolts (A) of the valve body cover.
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

Hyundai Palisade. Repair procedures
11.
Remove the valve body cover (A) after removing the bolts.
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)
Hyundai Palisade. Repair procedures   
•
Be careful when removing the valve body cover because the remaining ATF remains in the valve body cover.

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures   
•
Replace the gasket (A) before reinstalling the valve body cover.
•
After the installation, start the engine and then check if there are any leakages from the valve body cover.

Hyundai Palisade. Repair procedures
12.
Loosen the bolts and then Separate the main harness (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures
13.
Remove the valve body assembly (A).
Tightening torque :
(A) 9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures   
•
Attach the manual pin (B) to the detent lever (A) and assemble the valve body.

Hyundai Palisade. Repair procedures
14.
Disconnect the speed sensor connector (A).

Hyundai Palisade. Repair procedures
15.
Loosen the bolts and then removing the speed sensor (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

Hyundai Palisade. Repair procedures

Hyundai Palisade. Repair procedures
Installation
1.
To install, reverse the removal procedure.
2.
Inject the automatic transaxle oil and inspect the oil level.
(Refer to Automatic Transaxle System - "Automatic Transaxle Fluid")
Hyundai Palisade. Repair procedures   
•
After ATF level check or exchange, be sure to remove residual ATF on transaxle case.
(Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)

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