P0B35
High Voltage Service Disconnect Circuit Low
P0B35 is an OBD-II diagnostic trouble code meaning: High Voltage Service Disconnect Circuit Low. Common causes: open or short circuit in shutdown circuit, service shutdown relay malfunction. Estimated repair cost: $56–333.
Symptoms
- Hybrid/electric system does not turn on
- High voltage warning light on dashboard
- Reduced power or complete loss of traction
- Errors in other high voltage systems
Causes
- Open or short circuit in shutdown circuit
- Service shutdown relay malfunction
- Problems with the high voltage control unit
- Corrosion of contacts in connectors
- Damage to the insulation of high-voltage wires
How to Fix
- Check the continuity of the high voltage cut-off circuit
- Test the service shutdown relay
- Inspect connectors and contacts for corrosion
- Check the condition of the insulation of high-voltage wires
- Read parameters of the high-voltage control unit
- Repair only from an authorized dealer
Related codes
Error P0B35 by Vehicle Brand
FAQ
What does the P0B35 code mean?
P0B35 is an OBD-II diagnostic trouble code that indicates: High Voltage Service Disconnect Circuit Low
What causes a P0B35 error code?
The most common causes of P0B35 include: Open or short circuit in shutdown circuit; Service shutdown relay malfunction; Problems with the high voltage control unit; Corrosion of contacts in connectors.
How do I fix a P0B35 diagnostic trouble code?
To fix P0B35: Check the continuity of the high voltage cut-off circuit. Test the service shutdown relay. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B35?
Do not drive — repair immediately
How much does it cost to fix P0B35?
The estimated repair cost for P0B35 is $56–333. Actual cost depends on your vehicle, location, and labor rates.
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