Hyundai Elantra: Charging System / Alternator Repair procedures

Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the drive belt.
(Refer to Engine Mechanical System - "Drive Belt")
3.
Disconnect the alternator connector (A) and the cable (B) from alternator "B" terminal.

4.
Remove the alternator (B) after loosening the mounting bolts (A).

Installation
1.
Install in the reverse order of removal.
2.
Adjust the alternator belt tension after installation.
(Refer to Engine Mechanical System - "Drive Belt")

Alternator installation bolt :
[12mm (0.47in) bolt]
19.6 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ~ 19.5 Ib-ft)
[14mm (0.55in) bolt]
29.4 ~ 41.2 N.m (3.0 ~ 4.2 kgf.m, 21.7 ~ 30.4 Ib-ft)

Alternator Schematic Diagrams
Circuit Diagram     • COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or h ...

Battery Description and Operation
Description [AGM Battery] AGM battery is used for especially heavy load on the vehicle network depending on equipment and requirements. AGM stands for Absorbent Glass Material Battery; that is ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components Location 1. Engine Control Module (ECM)2. Manifold Absolute Pressure Sensor (MAPS)3. Intake Air Temperature Sensor (IATS)4. Engine Coolant Temperature Sensor (ECTS)5. Throttle Position Sensor (TPS) [integrated into ETC Module]6. Crankshaft Position Sensor (CKPS)7. Camshaft Position S ...

Hyundai Elantra AD (2016-2020) Service Manual: Intake Air Temperature Sensor (IATS) Description and Operation
Description Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature. To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM ...

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