Cruise Control On/Off Switch
The C0409 code means the vehicle's onboard diagnostic system has detected: Cruise Control On/Off Switch. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $100 - $400 (parts and labor)
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Common Symptoms
- Cruise control does not engage
- Cruise control warning light on
- Speed fluctuates during cruise
- Cruise control deactivates unexpectedly
Probable Causes (Ranked by Likelihood)
- Failed cruise control switch assembly Very High
- Damaged cruise control wiring High
- Faulty servo motor or actuator Moderate
- Cruise control module failure Low
Step-by-Step Diagnostic Procedure
-
Check cruise control switch inputs on scan tool
-
Test servo motor operation
-
Inspect cruise wiring and connectors
-
Verify speed signal to cruise module
Frequently Asked Questions
What does code C0409 mean?
C0409 indicates a fault with the cruise control on/off switch.
Can I drive with C0409?
You can drive safely, but the affected feature will be unavailable until repaired.
How much does it cost to fix C0409?
Typical repair costs are $100 - $400 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
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