OBD Guide

P0576

Cruise Control Input Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–167 (est.)

Symptoms

  • Cruise control doesn't work
  • Cruise control turns off spontaneously
  • Check Engine light comes on
  • Floating idle speed (in rare cases)

Causes

  • Open or short circuit in the cruise control wiring harness
  • Oxidized or damaged connector contacts
  • Faulty cruise control switches on the steering wheel
  • Problems with the cruise control module
  • Malfunction of the brake pedal (brake light switch)
  • Problems with the ECU

How to Fix

  1. Visual inspection of the wiring harness and contacts for damage
  2. Checking the cruise control switches with a multimeter
  3. Control Circuit Voltage Testing
  4. Diagnostics of the cruise control module
  5. Checking and replacing (if necessary) the brake light switch
  6. Resetting the error and checking the system functionality
  7. Flashing the ECU (in extreme cases)

Related codes

Error P0576 by Vehicle Brand