C1126: Cruise Control Command Switch Assembly Circuit Failure
MediumChassisChassis Electronics
What does C1126 mean?
C1126 is a diagnostic trouble code indicating "Cruise Control Command Switch Assembly Circuit Failure". This code relates to your vehicle's chassis electronics and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Intermittent warning lights
- Erratic gauge readings
Estimated repair cost
Typical range in Australia (parts + labour)
$100 – $500 AUD
Common causes
- Faulty chassis electronics component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This code sits in a driver assistance system such as parking sensors, cruise control, tyre pressure monitoring or a camera. The car drives normally, but the assistance may be off or, worse, half working. Do not rely on it until it has been diagnosed.
Get a diagnosis for YOUR car
Code C1126 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.