Code result
P0B37
High Voltage Service Disconnect Open
High severity
What it means
The high-voltage service disconnect circuit reports a open condition. Safe HV disconnection state cannot be verified.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Service disconnect switch in service position
highOne of the most commonly reported causes for this code — check this first.
Open in disconnect wire
mediumA plausible cause — test and verify before replacing parts.
Related help
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