LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Fiat
>>
2017
>>
500 Lounge, Automatic Trans
>>
Repair and Diagnosis (Single Page)
>>
Engine Performance
>>
System
>>
1.4L - DTCS P1D7F-00 To U1463 - 500
>>
DTC Troubleshooting
>>
P2251-00 O2 Sensor 1/1 Negative Current Control Circuit/Open
>>
Set Condition
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Set Condition
The Powertrain Control Module (PCM) detects an open on the O2 Sensor 1/1 Signal circuit for 0.016 seconds.