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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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Different variant/trim
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Section 12 (2.9L Pcm 1 - DTCS P2100-00 To P3405-00)
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DTC Troubleshooting
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P257F-00-Engine Hood Switch Circuit High
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Set Condition
Set Condition
WARNING:
This page is about a different variant/trim than selected.
The Powertrain Control Module (PCM) detects that the Hood Ajar Switch voltage received over the CAN BUS from the BCM is above 4.9 volts for 0.32 seconds.