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Jeep
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2022
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Grand Cherokee L Laredo, RWD
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Repair and Diagnosis
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Heating, Ventilation & A/C (HVAC)
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HVAC Control Systems
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Heating & Air Conditioning (ATC) - DTCS B1052-4B To B1059-77
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DTC Troubleshooting
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B1052-4B Rear Blend/Temperature Door Control-Over Temperature
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When Monitored
When Monitored
This diagnostic runs continuously when the following condition is met:
Battery Voltage is between 10V-16V.
Ignition is on for more than 5 seconds.