Mike's Workshop Manuals
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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 P023A To P0449
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DTC Troubleshooting
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P0406-EGR Position Sensor Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects the EGR Position Sensor signal voltage to is above 4.89 volts.