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Voyager LX, Gas
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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 - DTCS B11F0-15 To U1519-00
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DTC Troubleshooting
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B21DD-84-System Voltage - Signal Below Allowable Range
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Set Condition
Set Condition
If the HVACR Module battery circuit voltage is less than or equal to 10.0 volts for five seconds or more, this DTC will set.