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Home › Jeep › 2021 › Cherokee High Altitude, Automatic T/Case Control › Repair and Diagnosis › Engine Performance › System › 2.0L - DTCS P023A To P0449 › DTC Troubleshooting › P042D-Catalyst Temperature Sensor Circuit High (Bank 1 Sensor 2) › When Monitored

When Monitored

This diagnostic runs continuously when the following conditions are met:

With the ignition on.