LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Alfa Romeo
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2019
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Giulia Base, AWD
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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 - Electrical Diagnostics)
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DTC Troubleshooting
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B1943-15 - PTC High Power Relay Driving Command Output-Circuit Short To Battery Or Open
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Set Condition
Set Condition
This DTC sets if the HVAC Module detects a short to Battery or open on the PTC Relay 3 wire harness.