Kia Forte: Integrated Memory Seat (IMS) System / Integrated Memory Seat (IMS) Unit

Kia Forte 2019-2021 (BD) Service Manual / Body Electrical System / Integrated Memory Seat (IMS) System / Integrated Memory Seat (IMS) Unit

Components and components location
Components Location

1. Memory power seat unit
2. Driver seat

Schematic diagrams
Connector and Terminal function

No.
Connector A
Connector B
Connector C
1
-
Battery (+)
Slide switch (Front)
2
Recline motor (Front)
Ground
Recline switch (Front)
3
Rear height motor (Up)
Battery (+)
Front tilt switch (Up)
4
Slide motor (Front)
-
Rear height switch (Up)
5
-
Ground
-
6
Recline motor (Rear)

B-CAN (High)
7
Front tilt motor (Up)
B-CAN (Low)
8
Front tilt motor (Down)
-
9
Rear height motor (Down)
-
10
Slide motor (Rear)
Slide hall sensor
11

Front tilt hall sensor
12
-
13
Seat position sensor power
14
IGN 1
15
Slide switch (Rear)
16
Recline switch (Rear)
17
Front tilt switch (Down)
18
Rear height switch (Down)
19
-
20
Ground
21
-
22
-
23
-
24
Recline hall sensor
25
Rear height hall sensor
26
-
27
-
28
Battery (+)

Circuit Diagram

Repair procedures
Removal
1.

Before removing the driver side seat assembly, pull it upward to the maximum by pushing the front seat height adjusting switch.

2.

Disconnect the negative battery terminal.

3.

Remove the front drive seat assembly.

(Refer to Body - "Front Seat Assembly")

4.

Remove the memory seat unit (B) by loosening the screws after disconnecting the connector (A).

Installation
1.

Install in the reverse order of removal.

Inspection

Diagnosis with KDS

1.

In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (KDS).

The diagnostic system (KDS) provides the following information.

(1)

Self diagnosis : Checking failure and code number (DTC).

(2)

Current data : Checking the system input/output data state.

(3)

Actuation test : Checking the system operation condition.

(4)

Additional function : Controlling other features including system option setting and zero point adjustment.

2.

Select the 'Car model' and the 'Power Seat Module (PSM)' to be checked in order to check the vehicle with the tester.

3.

Select the 'Current Data' menu to search the current state of the input/output data.

The input/output data for the sensors corresponding to the power seat module (PSM) can be checked.

4.

To forcibly actuate the input value of the module to be checked, select option 'Actuation Test'.

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