Kia Niro: Engine Control System / ETC (Electronic Throttle Control) System Troubleshooting
| Fail-Safe Mode |
|
Item |
Fail-Safe |
||
|
ETC Motor |
Throttle valve stuck at 7° |
||
|
TPS |
TPS 1 fault |
Replace it with TPS 2 |
|
|
TPS 2 fault |
Replace it with TPS 1 |
||
|
TPS 1, 2 fault |
Throttle Angle (°) |
Throttle
valve stuck at 5° |
|
|
APS |
APS 1 fault |
Replace it with APS 2 |
|
|
APS 2 fault |
Replace it with APS 1 |
||
|
APS 1, 2 fault |
Engine idle state |
||
When throttle value is stuck at 7°, engine speed will be limited to below 1,500 rpm and vehicle speed to maximum of 40 - 50 km/h (25 - 31 mph). |
ETC (Electronic Throttle Control) System Repair procedures
Inspection
Throttle Position Sensor
(TPS)
1.
Connect the KDS/GDS on the Data Link Connector (DLC).
2.
Start the engine and measure the output v ...
Manifold Absolute Pressure Sensor (MAPS) Specifications
Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V) [Vref = 5V]
20.0 (0.20, 2.9)
0.79
46.7 (0.47, ...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Heated Oxygen Sensor (HO2S) Description and operation
Description
Heated Oxygen Sensor (HO2S), consisting of zirconium and alumina, is installed
on both upstream and downstream of the Manifold Catalytic Converter (MCC) to detect
the air/fuel ratio and send it to the ECM. The sensor output voltage varies in accordance
with the air/fue ...
Kia Niro 2017 (DE HEV) Service Manual: Heated Oxygen Sensor (HO2S) Repair procedures
Inspection
1.
Switch "OFF" the ignition.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 4 and 5 [B1/S1].
Specification: 2.5 - 4.0Ω [20°C(68°F)]
...