OBD Guide

U045B

Invalid Data Received From Anti-Lock Brake System (ABS) Control Module B

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

Symptoms

  • The ABS indicator on the dashboard is on
  • Check Engine Light Is On
  • Disabling stability control
  • Unstable ABS operation
  • Errors in other related systems

Causes

  • CAN bus problems
  • ABS module B malfunction
  • Damage to the wiring harness to the ABS module
  • Poor contact in connectors
  • ABS module power problems

How to Fix

  1. Check connections and connectors of ABS module B
  2. Check the integrity of the wiring harness
  3. Carry out CAN bus diagnostics
  4. Check the power and ground of the ABS module
  5. If necessary, replace ABS B module
  6. Repair only from an authorized dealer

Related codes

Error U045B by Vehicle Brand