GM Service Manual Online
For 1990-2009 cars only

Conditions for Running the DTC

DTC C0000 can be set anytime.

Conditions for Setting the DTC

The incorrect EBCM is installed.

Action Taken When the DTC Sets

    • The ABS is disabled.
    • The ABS warning indicator turns ON.

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists.

Diagnostic Aids

The following are possible causes of the malfunction:

An incorrect EBCM installed

Test Description

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

  1. This step determines if the correct EBCM is installed.

Step

Action

Yes

No

Schematic Reference: Antilock Brake System Schematics

Connector End View Reference: Antilock Brake System Connector End Views

1

Did you perform A Diagnostic System Check - ABS?

Go to Step 2

Go to Diagnostic System Check - ABS

2

Verify the correct EBCM is installed.

Is the correct EBCM is installed?

Go to Step 4

Go to Step 3

3

Replace the brake pressure modulator valve (BPMV). Refer to Brake Pressure Modulator Valve Assembly Replacement .

Did you complete the replacement?

Go to Step 4

--

4

  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK