LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Hyundai
>>
2023
>>
Elantra N Standard Trans
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System Diagnosis (6 Of 6)
>>
DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1)
>>
Troubleshooting
>>
Diagnostic Flowchart
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Diagnostic Flowchart
Fig 1: 1 Of 2
Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: 2 Of 2
Courtesy of HYUNDAI MOTOR AMERICA
Courtesy of HYUNDAI MOTOR AMERICA
Courtesy of HYUNDAI MOTOR AMERICA