Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2021FORTE EXREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTAUDIO/VIDEO/NAVIGATION DIAGNOSIS
2021 Kia Forte EX
Audio/Video/Navigation Diagnosis
2021 Kia Forte EXSECTION Audio/Video/Navigation Diagnosis
- DTC Index
- DTC B2801-00: MM CAN Signal Line Error
- DTC B2803-00: Timeout Multimedia CAN Message (AMP)
- DTC B2815-00: HS-CAN Error
- DTC B2824-00: FRT MIC Connection Error
- DTC B2826-00: GPS Antenna Short State
- DTC B2827-00: GPS Antenna Open State
- DTC B2835-00: Phone Connectivity Service Failure
- DTC B2839-00: SXM Module Communication Error
- DTC B2841-00: USB Communication Error
- DTC B2843-00: AUX Connection Error
- DTC B2848-00: XM Antenna Short State
- DTC B2849-00: SXM Antenna Open State
- DTC B28C0-00: AmFm1 Radio Antenna Short State
- DTC B28C6-00: LTE1/3G Antenna Shortcut To GND
- DTC B28C7-00: LTE1/3G Antenna Open Load
- DTC B292B-00: FL Speaker Short state
- DTC B292C-00: FR Speaker Short state
- DTC B292D-00: RL Speaker Short state
- DTC B292E-00: RR Speaker Short State
- DTC B2943-00: FL Speaker Connection Error
- DTC B2944-00: FR Speaker Connection Error
- DTC B2945-00: RL Speaker Connection Error
- DTC B2946-00: RR Speaker Connection Error
- DTC B2949-00: Radio Antenna Connection & Receive Quality
- DTC B2955-00: Timeout Multimedia CAN Message (Cluster)
- DTC B2958-00: Timeout Multimedia CAN Message (CGW)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.