Test Description

The number below refers to the step number on the diagnostic table.

3: This step tests if the IPC is able to turn OFF the ABS indicator.

ABS Indicator Always On

Step	Action	Yes	No
IMPORTANT: An ECE 13 response may cause the ABS indicator to remain ON when no DTCs are set. It is necessary to verify that ECE 13 is not causing the ABS indicator to remain illuminated, prior to performing this diagnostic. Refer to ABS Description and Operation (W/JL4) or ABS Description and Operation (W/O JL4) for a complete description of the ECE 13 response.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn OFF the ignition for 5 seconds. Turn ON the ignition while observing the ABS indicator. Does the ABS indicator illuminate for approximately 2 seconds and then turn OFF?	Go to Diagnostic Aids	Go to Step 3
3	Select the Instrument Panel Cluster Special Functions menu on the scan tool. Select Lamp Tests. Command the IPC indicator lamps Off. Does the ABS indicator turn OFF?	Go to Step 5	Go to Step 4
4	Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 6	-
5	Replace the electronic brake control module (EBCM). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 6	-
6	Turn OFF the ignition for 5 seconds. Turn ON the ignition while observing the ABS indicator. Does the ABS indicator illuminate for approximately 2 seconds and then turn OFF?	System OK	Go to Step 3