Kia Niro: Engine Electrical System / Troubleshooting
| Trouble Shooting |
Ignition System
|
Symptom |
Suspect area |
Remedy |
|
Vehicle indicates Ready in dash, but engine will not run when requested
by the HPCU (HEV module). |
Ignition coil |
Inspect ignition coil, or replace as required |
|
Spark plugs |
Inspect spark plugs, or replace as required |
|
|
Ignition wiring disconnected or broken |
Repair wiring, or replace as required |
|
|
Rough idle |
Ignition wiring |
Repair wiring, or replace as required |
|
Ignition coil |
Inspect ignition coil, or replace as required |
|
|
Engine hesitates/poor acceleration |
Spark plugs and spark plug cables |
Inspect spark plugs / cable, or replace as required |
|
Ignition wiring |
Repair wiring, or replace as required |
|
|
Poor mileage |
Spark plugs and spark plug cables |
Inspect spark plugs / cable, or replace as required |
Charging System
|
Symptom |
Suspect area |
Remedy |
|
Charging warning indicator does not light with Start/Stop Button "ON" and
Hybrid System off. |
Fuse blown |
Check fuses |
|
Light burned out |
Replace light |
|
|
Wiring connection loose |
Tighten loose connection |
|
|
LDC problem |
Check the LDC. Refer to HC group |
|
|
Charging warning indicator does not go out with Hybrid System on. (Battery
requires frequent recharging) |
Battery cable loose, corroded or worn |
Inspect cable connection, repair or replace cable |
|
LDC problem |
Check the LDC. Refer to HC group |
|
|
Wiring |
Repair or replace wiring |
|
|
Overcharge |
LDC problem |
Check the LDC. Refer to HC group |
|
Voltage sensing wire |
Repair or replace wiring |
|
|
Discharge |
Wiring connection loose or short circuit |
Inspect wiring connection, repair or replace wiring |
|
LDC problem |
Check the LDC. Refer to HC group |
|
|
Poor grounding |
Inspect ground or repair |
|
|
Worn battery |
Replace battery |
|
|
Abnormal parasitic draw from the vehicle |
Install a current probe to measure current. It should be less than 0.05A
(50mA) after Hybrid System off and waiting 10 minutes. Make sure trunk light
is removed for this test. |
Starting System
|
Symptom |
Suspect area |
Remedy |
|
Vehicle will not indicate Ready in dash at Hybrid System on. |
Auxiliary 12V battery charge low |
Charge or replace auxiliary 12V battery |
|
Auxiliary 12V battery cables loose, corroded or worn out |
Repair or replace cables |
|
|
Transaxle range switch (Vehicle with automatic transaxle only) |
Refer to AT group-automatic transaxle |
|
|
Fuse blown |
Replace fuse |
|
|
Ignition switch faulty |
Replace |
Special service tools
Special Service Tools
Tool Name / Number
Illustration
Description
Digital Level [SCC Setting JIG]
OK964 - 3T000
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Description and operation
System Configuration
PAS consists of 8 sensors (4 in the front and 4 in the rear) that are used to
detect obstacles and transmit the result in three separate warning levels, the first,
second and third to IPM (BCM) via LIN communication. IPM (BCM) decides the alarm
level by the tr ...
Kia Niro 2017 (DE HEV) Service Manual: Heated Steering wheel Schematic diagrams
System Circuit Diagram
Terminal Function
Housing
Pin
Function
Wire color
Pad
A
GND
Black
B
HEATER
Yellow
C
...
