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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 85 (2.0L - DTCS P2228 To P2402) >> DTC Troubleshooting >> P2237-O2 Sensor 1/1 Pump Cell Current Circuit/Open >> Possible Causes

Possible Causes

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Possible Causes
O2 1/1 POSITIVE CURRENT CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
O2 SENSOR 1/1
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .