P0A8B Possible Causes
- Faulty 14-volt power module
- 14-volt power module harness is open or shorted
- Poor electrical connection in 14-volt power module circuit
What Does It Mean?
How to Fix Code P0A8B
Check the “possible causes” listed above. Visually inspect the related cable harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0A8B Possible Symptoms
Engine light on (or service engine soon warning light)
P0A8B Meaning
The Engine Control Module (ECM) monitors the 14-volt power module. The ECM sets the OBDII code when the 14-volt power module does not meet factory specifications.