P1EF8 GMC - Battery Charger Control Module High-Voltage Energy Communication Bus Enable Circuit Low Voltage
Possible causes
Possible symptoms
P1ef8 Gmc Description
The battery charger compares the high-voltage energy management communication enable hardwire signal with a hybrid powertrain control module 2 serial data message indicating that the high-voltage energy management communication enable signal is active. If the high-voltage energy management communication enable hardwire signal is low when the serial data message indicates it should be high, then DTC P1EF8 is set.
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