OBD Guide

P1B35

Battery Energy Control Module Hybrid Battery Voltage Balance Processor 2 Performance

P1B35 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Hybrid Battery Voltage Balance Processor 2 Performance. Common causes: voltage balancing processor malfunction, problems with the wiring harness to the module. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Hybrid power reduction
  • Increased fuel consumption
  • Warning messages on the dashboard
  • Unstable operation of the hybrid system
  • Low battery power

Causes

  • Voltage balancing processor malfunction
  • Problems with the wiring harness to the module
  • Poor quality of connections in the circuit
  • Damage to hybrid battery cells
  • Control module software error

How to Fix

  1. Diagnostics of the voltage balancing module
  2. Checking the status of the hybrid battery
  3. Testing power and communication circuits
  4. Module software update
  5. Replacing a faulty module if necessary

Related codes

FAQ

What does the P1B35 code mean?

P1B35 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Hybrid Battery Voltage Balance Processor 2 Performance

What causes a P1B35 error code?

The most common causes of P1B35 include: Voltage balancing processor malfunction; Problems with the wiring harness to the module; Poor quality of connections in the circuit; Damage to hybrid battery cells.

How do I fix a P1B35 diagnostic trouble code?

To fix P1B35: Diagnostics of the voltage balancing module. Checking the status of the hybrid battery. Testing power and communication circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1B35?

Limited driving only, diagnose soon

How much does it cost to fix P1B35?

The estimated repair cost for P1B35 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat