Mike's Workshop Manuals
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2021
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Grand Cherokee L 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 U0429 To U1504
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Diagnosis And Testing
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U148C-Implausible Data Received From Stop/Start Button
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Set Condition
Set Condition
The Powertrain Control Module (PCM) receives a Stop/Start Off/On button pressed signal for more than five continuous minutes.