P0B37
High Voltage Service Disconnect Open
P0B37 is an OBD-II diagnostic trouble code meaning: High Voltage Service Disconnect Open. Common causes: mechanical damage to the service connector, corrosion of connector contacts. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- The car may go into emergency mode
- Reduced power or inability to start
- Disabling the High Voltage System
Causes
- Mechanical damage to the service connector
- Corrosion of connector contacts
- Broken wires in the circuit
- Malfunction of the connector status sensor
- Incorrect connection after service
How to Fix
- Visual inspection of the service connector for damage
- Checking the condition of contacts and cleaning them from corrosion
- High Voltage Continuity Diagnostics
- Checking the connector status sensor
- Replacing damaged components
- Work must be carried out by qualified personnel
Related codes
Error P0B37 by Vehicle Brand
FAQ
What does the P0B37 code mean?
P0B37 is an OBD-II diagnostic trouble code that indicates: High Voltage Service Disconnect Open
What causes a P0B37 error code?
The most common causes of P0B37 include: Mechanical damage to the service connector; Corrosion of connector contacts; Broken wires in the circuit; Malfunction of the connector status sensor.
How do I fix a P0B37 diagnostic trouble code?
To fix P0B37: Visual inspection of the service connector for damage. Checking the condition of contacts and cleaning them from corrosion. High Voltage Continuity Diagnostics. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B37?
Do not drive — repair immediately
How much does it cost to fix P0B37?
The estimated repair cost for P0B37 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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