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Home >> Jeep >> 2024 >> Compass Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0406 To P0440 >> DTC Troubleshooting >> P042D-Catalyst Temperature Sensor Circuit High (Bank 1 Sensor 2) >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

Possible Causes
GPF TEMPERATURE SENSOR FUSED B+ OPEN/HIGH RESISTANCE
GPF TEMPERATURE SENSOR GROUND OPEN/HIGH RESISTANCE
GPF TEMPERATURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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