P0B37

High Voltage Service Disconnect Open

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

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

P0B36 P0B38 P0B39