LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Mazda
>>
2021
>>
3 Select, 4D Hatchback, AWD
>>
Repair and Diagnosis (Single Page)
>>
Engine Performance
>>
System
>>
On-Board Diagnostic - Engine Control System (VINS 7, L, M) (3 Of 4)
>>
DTC P2237-00: Open Circuit Between A/F Sensor Terminal B And Pcm Terminal 1M
>>
Function Explanation (DTC Detection Outline)
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Function Explanation (DTC Detection Outline)
If a condition in which terminal 1S remains within the specified range for 5 s or more, the PCM determines an open circuit between A/F sensor terminal B and PCM terminal 1M and stores a DTC.