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Jeep
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2017
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Grand Cherokee Laredo, AWD
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Repair and Diagnosis
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Engine Performance
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System
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3.6L - DTCS P2100 To U0121
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DTC Troubleshooting
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P257D-Engine Hood Switch Circuit Performance
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the voltage reading for the Hood Ajar Switch received over the CAN BUS from the BCM is implausible for 0.32 seconds.