Hyundai Venue: Engine Control System / Engine Control Module (ECM). Repair procedures

Hyundai Venue (QX) (2020-2022) Service Manual / Engine Control / Fuel System / Engine Control System / Engine Control Module (ECM). Repair procedures

ECM Problem Inspection Procedure
1.
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.
4.
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 Procedure in Basic Inspection Procedure)
Removal
Hyundai Venue. Engine Control Module (ECM). Repair procedures   
When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below.
[In the case of installing used ECM]
1)
Perform "ECM neutralization mode" procedure with diagnostic tool.
(Refer to Body Electrical System - "Immobilizer System")
2)
Insert the key and turn it to the IGN ON and OFF position.
Then the ECM key register process is completed automatically.
[In the case of installing new ECM]
Insert the key and turn it to the IGN ON and OFF position.
Then the ECM key register process is completed automatically.
1.
Turn ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the battery.
(Refer to Engine Electrical System - "Battery")
3.
Disconnect the ECM connector (A).
4.
Remove the mounting bolts, and then remove the ECM bracket assembly (B).
ECM Bracket installation bolt :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Venue. Engine Control Module (ECM). Repair procedures

5.
Remove the ECM (B) after loosening the mounting nuts (A) from the bracket.
ECM Mounting nut :
0.9 - 0.95 N.m (0.09 - 0.097 kgf.m, 0.66 - 0.7 lb-ft)

Hyundai Venue. Engine Control Module (ECM). Repair procedures

Installation
Hyundai Venue. Engine Control Module (ECM). Repair procedures   
When replacing the ECM, the vehicle equipped withthe immobilizer must be performed procedure as below.
[In the case of installing used ECM]
1)
Perform "ECM Neutral mode" procedure with diagnostic tool.
(Refer to Body Electrical System - "Immobilizer System")
2)
After finishing "ECM Neutral mode", perform "Keyteaching" procedure with diagnostic tool.
(Refer to Body Electrical System - "Immobilizer System")
[In the case of installing new ECM]
Perform "Key teaching" procedure with diagnostic tool.
(Refer to Body Electrical System - "Immobilizer System")
Hyundai Venue. Engine Control Module (ECM). Repair procedures   
When replacing the ECM, the vehicle equipped withthe smart key system (Button start) must beperformed procedure as below.
[In the case of installing used ECM]
1)
Perform "ECM Neutral mode" procedure with diagnostic tool.
(Refer to Body Electrical System - "Immobilizer System")
2)
After finishing "ECM Neutral mode", insert the key(or press the start button) and turn it to the IGN ONand OFF position. Then the ECM learns the smartkey information automatically.
[In the case of installing new ECM]
Insert the key (or press the start button) and turn itto the IGN ON and OFF position.
Then the ECM learns the smart key information automatically.
1.
Installation is reverse of removal.
Adjustment
ETC Module Learning Procedure
Perform ETC module learning after replacing the ETC module.
(Refer to Electronic Throttle Control System - "Adjustment")
TCM Learning Procedure
Perform TCM learning after replacing the PCM.
(Refer to Automatic Transaxle 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.
Hyundai Venue. Engine Control Module (ECM). Repair procedures   
The programmed VIN cannot be changed. When writing the VIN, confirm the VIN carefully.
1.
Turn the ignition switch OFF.
2.
Connect the diagnostic tool to Data Link Connector (DLC).
3.
Turn the igntion switch ON.
4.
Select "Vehicle, Model Year, Engine, System".
5.
Select "Vehicle S/W Management".
6.
Select "Write VIN".

Hyundai Venue. Engine Control Module (ECM). Repair procedures

Hyundai Venue. Engine Control Module (ECM). Repair procedures

Hyundai Venue. Engine Control Module (ECM). Repair procedures

    Engine Control Module (ECM). Schematic diagrams

    Engine Control Module (ECM) [M/T] ECM Terminal Function [M/T] Connector [A] Pin No Description Connected to 1 Injector (Cylinder #1) control output Injector (Cylinder #1) 2 Sensor power (+5V) Throttle Position Sensor (TPS) # 1, 2 [ETC module] 3 Sensor power (+5V) Accelerator Position Sensor (APS) 1 4 Main Relay control output Main Relay 5 - - 6 Alternator signal input [FR] Alternator 7 Engine coolant temperature sensor (ECTS) signal input Engine coolant temperature sensor (ECTS) 8 Sensor ground Manifold absolute pressure sensor (MAPS) 9 - 10 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 11 - 12 - 13 CVVT Oil Control (OCV) Valve [Bank 1/Intake] control output CVVT Oil Control Valve (OCV) [Bank 1 / Intake] 14 Sensor power (+5V) Manifold absolute pressure sensor (MAPS) 15 Sensor power (+5V) Accelerator Position Sensor (APS) #2 A/C Pressure Transducer (APT) 16 Sensor power (+5V) CMPS [Bank 1 / Intake] CMPS [Bank 1 / Exhaust] 17 Vehicle speed signal input ABS/ESP Control Module [With ABS / ESP] 18 Battery voltage supply after ignition switch Ignition Switch 19 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 20 Sensor ground A/C Pressure Transducer (APT) 21 Sensor ground Battery sensor 22 - 23 - 24 - 25 Injector (Cylinder #2) control output Injector (Cylinder #2) 26 Cooling Fan Relay [High] control output Cooling Fan Relay [High] 27 Start relay control output (With smart key) Start relay 28 Alternator control output [COM] Alternator 29 C-CAN [Low] Other control module, Data Link Connector (DLC), 30 - 31 Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 32 Sensor ground Crankshaft Position Sensor (CKPS) 33 Crankshaft Position Sensor (CKPS) signal input Crankshaft Position Sensor (CKPS) 34 Sensor ground Throttle Position Sensor (TPS) 1, 2 35 Sensor ground Accelerator Position Sensor (APS) 2 36 Sensor ground Accelerator Position Sensor (APS) 1 37 Injector (Cylinder #4) control output Injector (Cylinder #4) 38 - 39 Engine RPM signal output Smart key Control Module 40 Immobilizer communication line Immobilizer Control module [Without Smart Key] Smart Key Control module [With Smart Key] 41 C-CAN [High] Other control module, Data Link Connector (DLC) 42 - 43 Purge Control Solenoid Valve control output Purge Control Solenoid Valve (PCSV) 44 - 45 Injector (Cylinder #3) control output Injector (Cylinder #3) 46 Cooling Fan Relay [Low] control output Cooling Fan Relay [Low] 47 Camshaft Position Sensor (CMPS) [Bank 1 / Intake] signal input haft Position Sensor (CMPS) [Bank 1 / Intake] 48 Battery power (B+) Battery 49 Heated Oxygen Sensor [Bank 1 / Sensor 1] Heater control output Heated Oxygen Sensor [Bank 1 / Sensor 1] 50 Power Ground Chassis Ground 51 - 52 Power Ground Chassis Ground 53 Heated Oxygen Sensor [Bank 1 / Sensor 2] Heater control output Heated Oxygen Sensor [Bank 1 / Sensor 2] 54 CVVT Oil Control (OCV) Valve [Bank 1 / Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust] 55 Battery voltage supply after main relay Main relay 56 Battery voltage supply after main relay Main relay Connector [B] Pin No Description Connected to 1 Sensor ground Engine Coolant Temperature Sensor (ECTS) 2 Throttle position sensor (TPS) #2 signal input Throttle position sensor (TPS) #2 [ETC Module] 3 Manifold absolute pressure sensor (MAPS) signal input Manifold absolute pressure sensor (MAPS) 4 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT) 5 - 6 - 7 Accelerator Position Sensor (APS) #1 signal input Accelerator Position Sensor (APS) #1 8 - 9 - 10 - 11 Electric Load signal input (Defrost) A/C Control Module, Outside Mirror 12 Brake switch 1 signal input Brake lamp swtich , Brake switch 13 Heated Oxygen Sensor [Bank 1 / Sensor 2] signal input Heated Oxygen Sensor [Bank 1 / Sensor 2] 14 Battery Sensor Temperature signal input Battery sensor 15 Intake air temperature sensor (IATS) signal input Intake Air temperature sensor (IATS) 16 Battery Sensor Current Direct signal input Battery sensor 17 - 18 Accelerator Position Sensor (APS) #2 signal input Accelerator Position Sensor (APS) #2 19 - 20 - 21 - 22 Throttle position sensor (TPS) #1 signal input Throttle position sensor (TPS) #1 23 Brake Lamp Switch signal input Brake Switch 24 Start switch signal input Ignition switch 25 Sensor ground Heated Oxygen Sensor [Bank 1 / Sensor 1] 26 - 27 Sensor ground Knock sensor (KS) 28 - 29 Wheel speed sensor [B] signal input Front wheel speed sensor (RH) [Without ABS] 30 Wheel speed sensor [A] signal input Front wheel speed sensor (RH) [Without ABS] 31 - 32 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 33 Power Ground Chassis Ground 34 Clutch Switch signal input Clutch switch [M...

    ETC (Electronic Throttle control) System

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