P0565 low

Cruise Control On Signal Malfunction

The P0565 code means the vehicle's onboard diagnostic system has detected: Cruise Control On Signal Malfunction. This is a low severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
moderate
Estimated cost
$50 - $400 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • Cruise control will not engage
  • Cruise control indicator stays off
  • No response when pressing cruise on/off button

Probable Causes (Ranked by Likelihood)

  • Faulty cruise control on/off switch Very High
  • Open circuit in cruise control on signal wire High
  • Damaged clockspring affecting cruise signal Moderate
  • ECM not recognizing cruise on input Low

Step-by-Step Diagnostic Procedure

  1. Monitor cruise control on/off status with a scan tool while toggling the switch

  2. Check for voltage at the cruise control module when the on button is pressed

  3. Inspect the clockspring and steering wheel wiring for proper connections

  4. Test the cruise on/off switch for continuity when pressed

Frequently Asked Questions

Can a brake light switch cause P0565?

A faulty brake light switch can prevent cruise control from engaging because the system requires confirmation that the brakes are not applied. However, this would typically set a brake switch code rather than P0565.

Is cruise control repair expensive?

Most cruise control repairs are moderate in cost. A switch replacement is $50 to $200. A clockspring replacement is $200 to $500 including labor. The most expensive scenario is an ECM-related issue.

Can I still drive without cruise control?

Yes. P0565 only affects cruise control functionality. The vehicle drives normally in all other respects. Cruise control is a convenience feature and its absence does not affect safety or engine operation.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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