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2025
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Compass Trailhawk
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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2.0L - DTCS P0405 To P042E
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DTC Troubleshooting
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P042B Catalyst Temperature Sensor Circuit Performance (Bank 1 Sensor 2)
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Set Condition
Set Condition
The Gasoline Particulate Filter (GPF) Temperature Sensor Module is reporting that the Temp Sensor 2 signal (Outlet) is outside of the allowable threshold compared to the other temperature sensors upon Ignition On.