Hyundai Ioniq: Hybrid Motor Control System / Resolver Sensor. Repair procedures
1. | Check the resolver sensor resistance. [Hybrid drive motor] Measuring equipment: Multimeter
Category
| Inspection area
| Inspection criteria
| Remarks
| Resistance (Resolver sensor)
| Pin 1 - 5
| 11.7 Ω ± 10% (10.5 - 12.9 Ω)
| Based on ambient temperature (20°C)
| Pin 2 - 6
| 32 Ω ± 10% (28.8 - 35.2 Ω)
| Pin 3 - 7
| 32 Ω ± 10% (28.8 - 35.2 Ω)
|

[Hybrid starter generator (HSG)] Measuring equipment: Multimeter
Category
| Inspection area
| Inspection criteria
| Remarks
| Resistance (Resolver sensor)
| Pin 1 - 6
| 15.8 ± 2Ω
| Based on ambient temperature (23°C)
| Pin 2 - 7
| 28.2 ± 2Ω
| Pin 3 - 8
| 28.2 ± 2Ω
|

|
2. | If you need to replace the resolver sensor, replace the HSG assembly. (Refer to Hybrid Motor Assembly - "Hybrid Starter Generator".) |
You need to perform resolver compensation whenever the engine, HPCU (inverter), drive motor, or starter generator (HSG) is replaced, removed, or reinstalled. Perform compensation according to the GDS motor/HSG resolver compensation procedure shown below. |
GDS Motor / HSG Resolver Compensation Procedure

Description•
Motor temperature affects the motor power significantly.•
If the motor overheats, its main components, including permanent magnet, stator coil, etc...
Other information:
Removal1.Disconnect the negative (-) battery terminal.2.Remove the steering wheel assembly.(Refer to Steering System -"Steering Wheel")3.Remove the steering back cover (A).4.Remove the steering remote control connector (A).5.Remove the steering remote control (A), after loosening the screws...
1. Insert the tongue plate (A) into the buckle (A’) until an audible "click"
is heard, indicating the latch is locked. Make sure the belt is not twisted.
2. Pull the tongue plate (B) and insert it into the buckle (B’) until an audible
"click" is heard, indicating the latch is locked...
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