KIA Niro: Hybrid Motor Control System
Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Service Highlight / Hybrid Motor Control System
Description
- The Hybrid Power Control Unit (HPCU), composed of various components, is the core device among the Power Electronics devices that acts as the brain.
- It comprises of the Hybrid Control Unit (HCU), an inverter Motor Control Unit (MCU), the Generator Control Unit (GCU)) and the Low-voltage DC-DC Converter (LDC).

Repalcement
- Replace the HPCU.
(Refer to Hybrid Control System- "Hybrid Power Control Unit ")
Resolver Sensor Description and operation
Description
The accurate position of the rotor must be known at all times to ensure maximum output control of the motor.

Part Circuit Diagram
Hybrid Drive Motor

HSG

READ NEXT:
Resolver Sensor Repair procedures | Motor Temperature Sensor Repair procedures
Inspection
Hybrid Drive Motor
Inspect the resolver sensor resistance.
If the resolver sensor needs to be replaced, replace the hybrid drive motor assembly.
(Refer to Hybrid Motor Assembly - "Hybrid Drive M
SEE MORE:
Replacing inner panel
fuse
Operation
Turn the vehicle and all other switches
off.
Open the fuse panel cover.
Pull the suspected fuse straight out.
Use the removal tool (1) provided in
the main fuse box in the engine compartment.
Check the remove
Engine Electrical System - Troubleshooting
Trouble Shooting
Ignition System
Symptom:
Vehicle indicates Ready in
dash, but engine will not run
when requested by the
HPCU (HEV module).
Suspect area → Remedy
Ignition coil → Inspect ignition coil, or
replace a
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