ECE 13 Response
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
The ABS indicator illuminates when a malfunction which disables ABS is detected. Often, the ABS indicator turns OFF following the instrument panel cluster (IPC) bulb check during the next ignition cycle unless the fault is detected during that ignition cycle. However, the setting of certain DTCs may cause the ABS indicator to remain illuminated during the subsequent ignition cycle until the vehicle is operated at a speed greater than 10 km/h (7 mph) and no fault is detected. This is referred to as an ECE 13 response. It is important to verify that ECE 13 is not the cause of an ABS indicator which is illuminated when no DTCs are set, before attempting to diagnose other possible causes.