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Jeep
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2021
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Cherokee High Altitude, Automatic T/Case Control
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Repair and Diagnosis
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Engine Performance
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System
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2.0L - DTCS P152C To P2172
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DTC Troubleshooting
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P1DBD-Fuel Pressure Sensor Rationality
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When Monitored
When Monitored
The PCM runs a Fuel Rail Pressure Sensor rationality check 10.0 seconds after a Decel Fuel Shut Off (DFSO) event or other fuel system load changes.