FixVault
Home
›
Dodge and Ram
›
2021
›
ProMaster City Base
›
Repair and Diagnosis
›
Engine Performance
›
System
›
2.4L - DTCS P1206 To P2238
›
DTC Troubleshooting
›
P2237 - O2 Sensor 1/1 Pump Cell Current Circuit/Open
›
Set Condition
Set Condition
The Powertrain Control Module (PCM) detects an open on the O2 Sensor Current Pump circuit.