The most common causes of C1124 include: Wheel speed sensor malfunction; ABS hydraulic unit failure; Steering angle sensor calibration needed; Brake pad wear sensor fault. A professional OBD-II scan tool is recommended for accurate diagnosis.

Recommended steps to address C1124: (1) Monitor the situation and service at your next scheduled visit (2) Have the ABS/stability system inspected promptly (3) Check wheel speed sensors for debris or damage. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with C1124?

C1124 is a caution-level code. It is generally safe to continue driving short distances, but have it inspected at your next scheduled service visit.

C1124

Caution

Input shaft speed signal missing/faulted

Severity

Caution

What does C1124 mean?

Fault code C1124 means "Input shaft speed signal missing/faulted". It is a manufacturer-specific diagnostic trouble code (DTC) in the chassis system, classified as "chassis" with a severity level of "caution". This is a lower-severity code that should be monitored. Have it checked at your next regular service appointment. This code is defined by the SAE J2012 / ISO 15031-6 standard and applies to OBD-II compliant vehicles sold in the US, EU, and other global markets.

Possible Causes

Wheel speed sensor malfunction
ABS hydraulic unit failure
Steering angle sensor calibration needed
Brake pad wear sensor fault

Recommended Actions

1 Monitor the situation and service at your next scheduled visit
2 Have the ABS/stability system inspected promptly
3 Check wheel speed sensors for debris or damage