P0B37 Possible Causes
- Faulty high voltage service disconnect port
- High voltage service disconnect port harness is open or shorted
- High voltage service disconnect port circuit poor electrical connection
What Does It Mean?
How to Fix Code P0B37
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.
P0B37 Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P0B37 Meaning
The engine control module (ECM) monitors the high voltage service disconnect port. The ECM sets the OBDII code when the high voltage service disconnect port does not meet factory specifications.