U0104 on Kia Sportage
Factory diagnostic protocol and troubleshooting wire for fault code U0104 specifically for the Kia Sportage (2021–2026, 2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP)).
1. Symptoms of U0104 on Kia Sportage
When the Engine Control Module (ECM/PCM) on your Kia Sportage (2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP)) logs fault code U0104, drivers commonly observe:
2. Most Likely Causes on Kia Sportage
Historical warranty claims and technical repair bulletins for Kia Sportage point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Kia Sportage
Clean snow, ice, mud, or dead bugs off front radar emblem. on the Kia Sportage equipped with 2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP).
Verify power feed to radar sensor. on the Kia Sportage equipped with 2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP).
Execute optical/radar alignment procedure if bumper was removed. on the Kia Sportage equipped with 2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP).
Clear DTCs and test cruise on highway. on the Kia Sportage equipped with 2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP).
Equipment for Diagnosing Kia Sportage (U0104)
Kia Sportage OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Kia Sportage.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Kia Sportage
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Kia Sportage:
4. Kia Sportage U0104 FAQs
What causes code U0104 to trigger on a Kia Sportage?
On the Kia Sportage (2.5L 4-Cyl (187HP) / 1.6L Turbo Hybrid (227HP) / PHEV (261HP)), U0104 is most frequently caused by Blocked or dirty front radar sensor in grille/bumper or Blown radar module fuse.
Where is the OBD-II port located on my Kia Sportage?
On the Kia Sportage, the 16-pin DLC diagnostic connector is located Under driver steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Kia Sportage with code U0104?
Yes. Normal driving is unaffected, but Adaptive Cruise Control will not engage. Given that U0104 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.

