OBD Guide

P0B36

High Voltage Service Disconnect Circuit High

P0B36 is an OBD-II diagnostic trouble code meaning: High Voltage Service Disconnect Circuit High. Common causes: high voltage cut-off relay malfunction, short circuit in trip circuit. Estimated repair cost: $89โ€“278.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$89โ€“278 (est.)

Symptoms

  • Check Engine Light Is On
  • High voltage system fault warning
  • Reduced power or inability to start
  • Hybrid system failure
  • Clicking or burning smell from the high voltage compartment

Causes

  • High voltage cut-off relay malfunction
  • Short circuit in trip circuit
  • Damage to high voltage wiring
  • Problems in the high voltage system control module
  • Contact corrosion in the service connector

How to Fix

  1. High Voltage Trip Circuit Condition Diagnosis
  2. Check and replace the emergency shutdown relay if necessary
  3. Inspection and repair of high-voltage wiring
  4. Diagnostics of the high-voltage system control module
  5. Repair only from an authorized dealer

Related codes

Error P0B36 by Vehicle Brand

FAQ

What does the P0B36 code mean?

P0B36 is an OBD-II diagnostic trouble code that indicates: High Voltage Service Disconnect Circuit High

What causes a P0B36 error code?

The most common causes of P0B36 include: High voltage cut-off relay malfunction; Short circuit in trip circuit; Damage to high voltage wiring; Problems in the high voltage system control module.

How do I fix a P0B36 diagnostic trouble code?

To fix P0B36: High Voltage Trip Circuit Condition Diagnosis. Check and replace the emergency shutdown relay if necessary. Inspection and repair of high-voltage wiring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0B36?

Do not drive โ€” repair immediately

How much does it cost to fix P0B36?

The estimated repair cost for P0B36 is $89โ€“278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat