The Instrument Panel Cluster (IPC) turns the ABS warning indicator ON during the IPC bulb check for approximately 3 seconds when the ignition switch is turned to the ON position. If the EBCM detects a malfunction within the ABS it sends a Class 2 serial data message to the IPC in order to command the ABS warning indicator ON.
The number below refers to the step number on the diagnostic table.
Step  | Action  | Value(s)  | Yes  | No  | 
|---|---|---|---|---|
1  | Did you perform the ABS Diagnostic System Check?  | --  | Go to Step 2  | |
 Does the scan tool command the ABS Warning Indicator ON and OFF?  | --  | Go to Step 3  | Go to Step 4  | |
3  | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement?  | --  | --  | |
4  | Replace the Instrument Panel Cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Did you complete the replacement?  | --  | --  |