- Faulty Battery Module
- Battery Module harness is open or shorted
- Battery Module circuit poor electrical connection
- Faulty Body Control Module (BCM)
- Engine Light ON (or Service Engine Soon Warning Light)
B1671 DescriptionThe Body Control Module (BCM) monitors the Battery Module. The BCM sets the OBDII code when the Battery Module is not to factory specifications.
B1671 Information for specific makes
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