LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Nissan-Datsun
>>
2021
>>
Qashqai SL
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System (DTCS) (4 Of 4)
>>
Engine (ECM)
>>
DTC P2239: O2 Sensor 1 Bank 1
>>
DTC Description
>>
Possible Cause
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Possible Cause
Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
A/F sensor 1