ABS Indicator

WARNING: This page is about a different car, the 2010 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The IPC illuminates the ABS indicator when any of the following instances occur.

The EBCM detects an ABS-disabling malfunction. The EBCM sends a serial data message to the IPC requesting illumination.
The IPC performs the bulb check.
The IPC detects a loss of serial data communication with the EBCM.

Usually, the ABS indicator is turned OFF during the following ignition cycle unless the fault is detected during that ignition cycle. However, the setting of certain DTCs will cause the ABS indicator to remain illuminated during the following ignition cycle until the vehicle is operated at a speed greater than 13 km/h (8 mph). This allows the EBCM to verify that no malfunction exists, before turning OFF the ABS indicator, in order to comply with the United Nations Economic Commission for Europe (ECE) regulation no. 13. This response occurs even if the ABS indicator turns OFF when the scan tool is used to clear the DTCs. When repairing these vehicles, it is important to ensure that the ECE 13 response has occurred and that the ABS indicator does not illuminate after returning the vehicle to the customer. It is also 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.