P0A7B Possible Causes
- Faulty battery energy control module
- Battery energy control module harness is open or shorted
- Poor electrical connection in battery energy control module circuit
What Does It Mean?
How to Fix Code P0A7B
Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0A7B Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P0A7B Meaning
The engine control module (ECM) monitors the battery energy control module. The ECM sets the OBDII code when the battery energy control module does not meet factory specifications.
OBDII Code P0A7B – MIL illumination required for battery energy control module