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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 944 (Anti-Lock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> ABS Indicator Always On >> Test Description
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Test Description

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 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 (Under 8600 GVW)  or ABS Description and Operation (Equal to or Over 8600 GVW)  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
2
  1. Turn OFF the ignition for 5 seconds.
  2. 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 
  1. Select the Instrument Panel Cluster Special Functions menu on the scan tool.
  2. Select Lamp Tests.
  3. 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 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 for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 6  -
6
  1. Turn OFF the ignition for 5 seconds.
  2. 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