Kia Forte: Manual Transaxle System / Vehicle Speed Sensor
Specifications
Item
|
Specification
|
Type
|
Hall sensor
|
Working voltage
|
6.5
-1 5V
|
Output voltage
|
VL ≤ 0.5 V
|
(When output current is 15mA flows)
|
Description and operation
Component location : Manual transaxle case
Operation principle : Vehicle Speed Sensor (VSS) is hall sensor type and senses
the rotating speed of differential gear.
Function
| • |
Comparing engine speed with vehicle speed calculated based on vehicle
speed sensor signal, ECM recognizes engaged gear.
|
| • |
Based on the information about engaged gear, ECM performs optimum fuel
injection quantity correction.
|
| • |
VSS signal is also used in speed meter of cluster, A/C control module,
BCM, etc.
|
Repair procedures
W/Harness Inspection
| 1. |
Check the vehicle speed sensor by using the KDS.
(if normal, current vehicle speed is display)
|
| 2. |
Check if current vehicle speed is same as vehicle speed displayed on
the KDS.
|
| 3. |
Check the damage to the connectors and wiring.
|
| 4. |
Check the power.
| (1) |
Turn ignition switch OFF.
|
| (2) |
Disconnect the vehicle speed sensor.
|
| (3) |
Turn ignition switch ON.
|
| (4) |
Check the voltage of the power terminal.
|
Specification : 11.5V - 13.0V
|
|
|
| 5. |
Check the signal.
| (1) |
Turn ignition switch OFF.
|
| (2) |
Disconnect the vehicle speed sensor.
|
| (3) |
Turn ignition switch ON.
|
| (4) |
Check the voltage of the signal terminal.
|
Specification : 8.0V - 11.5V
|
|
|
| 6. |
Check the ground.
| (1) |
Turn ignition switch OFF.
|
| (2) |
Disconnect the vehicle speed sensor.
|
| (3) |
Turn ignition switch ON.
|
| (4) |
Check the voltage between signal terminal and body ground.
|
| (5) |
Check the voltage between signal terminal and ground terminal.
|
Specification : (4) - (5) = Within 200mV
|
|
|
Component Inspection
| 1. |
IG KEY "OFF", ENGINE "OFF".
|
| 2. |
Disconnect the vehicle speed sensor connector.
|
| 3. |
Disconnect the vehicle speed sensor and driven gear.
|
| 4. |
Check the wear of spline (A).
|
| 5. |
Check rotating state of vehicle speed sensor driven gear.
|
| 6. |
Connect the vehicle speed sensor connector and IG KEY "ON".
|
| 7. |
Rotate the driven gear with hand.
|
Specification : Vehicle Speed Signal generates.
|
|
| 1. |
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
|
| 2. |
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
|
| 3. |
Disconnect the vehicle speed sensor connector (A).
|
| 4. |
Remove the vehicle speed sensor (A) and driven gear.
|
Tightening torque:
5.9 - 7.8 N·m (0.6 - 0.8 kgf·m, 4.3 - 5.8 lb·ft)
|
|
After removing speed sensor, be careful not to enter dust, foreign
matters, etc in speed sensor hole.
|
|
| 5. |
Separate the vehicle speed sensor (A) and driven gear (B).
|
| 1. |
Install in the reverse order of removal.
|
Do not reuse the O-ring (A).
|
|
Specifications
Specifications
Item
Specified
Type
ON / OFF
Operating condition
Neutral gear
...
Service data
Service Data
Dual clutch transmission
Transmission model
D7UF1
Engine model
Gamma 1.6 T-GDI
Clutch ...
Other information:
Components and components location
Components
1. Control shaft complete
2. Manual transaxle case
3. Clutch housing
4. Back-up lamp switch
5. Manual transaxle support bracket
6. Control cable bracket
Repair procedures
Rem ...
Components and components location
Component Location
1. Fuel filler door
Repair procedures
Replacement
Put on gloves to prevent hand injuries.
...
Neutral Switch
DCT(Dual Clutch Transmission) System