Kia Optima: Integrated Memory Seat (IMS) / Integrated Memory Seat (IMS) Unit

Kia Optima DL3 2019-2024 Service and Repair Manual / Body Electrical System / Integrated Memory Seat (IMS) / Integrated Memory Seat (IMS) Unit

Specifications

Item	Specifications
Rated voltage	DC 12 V
Operating voltage	DC 9 - 16 V
Operating temperature range	-22 to 167°F (-30 to 75°C)
Dark current	Max. 1.2 mA

Components and components location

Component Location

1. Integrated memory seat (IMS) unit

Schematic diagrams

Connector and Terminal Function

Pin	Function
Pin	Connector A	Connector B	Connector C
1	-	Battery (+)	Slide switch signal (Forward)
2	Recline motor (Forward)	Battery (+)	Recline switch signal (Forward)
3	Rear height motor (Up)	Ground	Front tilt switch signal (Up)
4	Slide motor (Forward)	Ground	Rear height switch signal (Up)
5	-		-
6	Recline motor (Backward)		B-CAN (High)
7	Front tilt motor (Up)		B-CAN (Low)
8	Front tilt motor (Down)		-
9	Rear height motor (Down)		Driver lumbar support motor (Mid)
10	Slide motor (Backward)		Slide sensor
11			-
12			-
13			Seat position sensor power
14			IGN1
15			Slide switch signal (Backward)
16			Recline switch signal (Backward)
17			Front tilt switch signal (Down)
18			Rear height switch signal (Down)
19			-
20			Ground
21			-
22			-
23			Driver lumbar support motor (Def)
24			-
25			-
26			-
27			-
28			Battery (+)

Repair procedures

Removal

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

1.	Disconnect the negative battery terminal.

2.	Remove the front drive seat assembly. (Refer to Body - "Front Seat Assembly")

3.	Disconnect the IMS unit connectors (A).

4.	Remove the IMS unit (A) by loosening the mounting screws.

Installation

1.	Install in the reverse order of removal.

Inspection

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'.

Integrated Memory Seat (IMS)

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