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Home >> Cadillac >> 2007 >> CTS Base, 2.8 T, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Antilock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> ABS Indicator Inoperative >> Test Description
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Test Description

WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3:  Use the scan tool to check the normal state of the ABS indicator control circuit.
  2. 4:  This step ensures that the instrument panel cluster (IPC) can operate the ABS indicator.
ABS Indicator Inoperative

Step Action Value(s) Yes No
Schematic Reference: Antilock Brake System Schematics 
Connector End View Reference: Antilock Brake System Connector End Views  or Displays and Gages Connector End Views
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Inspect the electronic brake control module (EBCM) ground, making sure the ground is clean and torqued to the proper specification. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
- Go to Step 9  Go to Step 3 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the ABS Warning Indicator parameter in the DRP/ABS/TCS data list.
Does the scan tool display Off?
- Go to Step 4  Go to Step 5 
  1. Turn OFF the ignition.
  2. Turn ON the ignition, with the engine OFF.
  3. Observe the ABS indicator on the instrument panel cluster (IPC) during the displays test.
Does the ABS indicator illuminate during the displays test and then turn OFF?
- Go to Testing for Intermittent Conditions and Poor Connections Go to Step 6 
5 Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
- Go to Step 9  Go to Step 7 
6 Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
- Go to Step 9  Go to Step 8 
7 Replace the EBCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
- Go to Step 9  -
8 Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
- Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 2