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2024
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Grand Cherokee Summit
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Repair and Diagnosis
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Different variant/trim
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Section 72 (2.0L - DTCS P0420 To P0490)
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DTC Troubleshooting
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P0428-Catalyst Temperature Sensor Circuit High (Bank 1 Sensor 1)
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Set Condition
Set Condition
WARNING:
This page is about a different variant/trim than selected.
The Gasoline Particulate Filter Temperature Sensor Module detects that the GPF Temperature Sensor Signal circuit voltage is above a calibrated threshold.