The IPC illuminates the ABS indicator when the following occurs:
The EBCM detects an ABS-disabling malfunction and sends a serial data message to the IPC requesting illuminationThe IPC performs the bulb check.The IPC detects a loss of serial data communication with the EBCM.The EBCM sends a serial data message to the IPC requesting illumination.
Before beginning vehicle diagnosis, the following preliminary inspections/tests must be performed:
Ensure that the battery is fully charged.
- Install a scan tool. Verify that the scan tool powers up.
- Ignition ON, Engine OFF, verify communication with all of the control modules on the vehicle.
- Check for any related DTCs.