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Home › Jeep › 2025 › Grand Cherokee 4xe › Repair and Diagnosis › Engine Performance › System › 2.0L - DTCS P2174 To P2271 › DTC Troubleshooting › P2237 O2 Sensor 1/1 Pump Cell Current Circuit/Open › Default Action

Default Action

MIL is illuminated on the second consecutive trip that the diagnostic fails.
The MIL will be turned off on the third consecutive trip that the diagnostic passes.