Kia Sedona: Engine Control Module (ECM) Repair procedures

Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Engine Control Module (ECM) Repair procedures

Removal

1.	Turn ignition switch OFF and disconnect the negative (-) battery terminal.

2.	Remove the battery. (Refer to Engine Electrical System - "Battery")

3.	Remove the air cleaner assembly and intake air hose. (Engine Mechanical System - "Air Cleaner")

4.	Disconnect the ECM connector (A)

5.	Remove the ECM bracket assembly (B) after loosening the mounting bolts and nuts.

6.	After removing the mounting nuts (A), remove the ECM from the bracket.

Installation

Install in the reverse order of removal.

ECM mounting nut:

8.8 ~ 11.8 N.m (0.9 ~ 1.2 kgf.m, 6.5 ~ 8.7 lbf.ft)

ECM bracket mounting bolt/nut:

9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lbf.ft)

ECM Problem Inspection Procedure

TEST ECM GROUND CIRCUIT: Measure resistance between ECM and chassis ground using the backside of ECM harness connector as ECM side check point. If the problem is found, repair it.

Specification: Below 1Ω

2.	TEST ECM CONNECTOR: Disconnect the ECM connector and visually check the ground terminals on ECM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it.

3.	If problem is not found in Step 1 and 2, the ECM could be faulty. If so, replace the ECM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the ECM.

RE-TEST THE ORIGINAL ECM: Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original ECM with a new one. If problem does not occur, this is intermittent problem.

(Refer to “Intermittent Problem Inspection Procedure” in Basic Inspection Procedure)

Adjustment

ECM Neutral Mode procedure

•	After replacing the ECM of the vehicle with the immobilizer, the following procedure must be performed.

[If installing a used ECM]

1)	Perform "ECM Neutral Mode" procedure using GDS. (Refer to "Body Electrical System - "Immobilizer System - Repair procedures")

2)	After finishing "ECM Neutral Mode", perform "Key Teaching" procedure using GDS. (Refer to "Body Electrical System - "Immobilizer System - Repair procedures")

[If installing a new ECM]

Perform "Key Teaching" procedure using GDS. (Refer to "Body Electrical System - "Immobilizer System - Repair procedures")

•	After replacing the ECM of the vehicle with the smart key system (button start), the following procedure must be performed.

[If installing a used ECM]

1)	Perform "ECM Neutral Mode" procedure using GDS. (Refer to "Body Electrical System - "Smart key System - Repair procedures")

2)	After finishing "ECM Neutral Mode", turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.

[If installing a new ECM]

Turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.

TCM learning procedure

•	Perform TCM learning after replacing the PCM. (Refer to Automatic Transaxle Control System - "Adjustment")

ETC module learning procedure

•	Perform ETC module learning after replacing the ETC module. (Refer to Electronic Throttle Control System - "Adjustment")

VIN programming procedure

VIN (Vehicle Identification Number) is a number that has the vehicle''s information (Maker, Vehicle Type, Vehicle Line/Series, Body Type, Engine Type, Transmission Type, Model Year, Plant Location and so forth. For more information, please refer to the group "GI" in this SERVICE MANUAL). When replacing an ECM, the VIN must be programmed in the ECM. If there is no VIN in ECM memory, the fault code (DTC P0630) is set.

The programmed VIN cannot be changed. When writing the VIN, confirm the VIN carefully.

1.	Select "VIN Writing" function in "Vehicle S/W Management".

2.	Select "Write VIN" in "ID Resister".

Enter the VIN.

Before entering the VIN, double-check the VIN as it cannot be changed once programmed.

4.	Turn the ignition switch OFF, then back ON.

Engine Control Module (ECM) Terminal Function

ECM Terminal And Input/Output signal ECM Terminal Function Connector [E100-A] Pin No.DescriptionConnected to1-　2-　3-　4Immobilizer Lamp control outputImmobilizer Lamp [Without Button E ...

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IDB terminal and In/Output IDB terminal function Connector [E09] Pin No.DescriptionConnected to1-　2-　3-　4-　5-　6-　7-　8-　9-　10-　11-　12-　13-　14-　15-　16Injector (Cyl ...

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Kia Sedona: Engine Control Module (ECM) Repair procedures

Engine Control Module (ECM) Terminal Function

Injector Drive Box (IDB) Schematic Diagrams

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