GM Service Manual Online
For 1990-2009 cars only

Circuit Description

This DTC identifies a relay malfunction within the EBCM.

Conditions for Running the DTC

The ABS and ETS conditions are normal.

Conditions for Setting the DTC

An internal EBCM malfunction exists.

Action Taken When the DTC Sets

The following actions occur:

    • The ABS/ETS remains functional.
    • The ABS warning indicator remains OFF.

Conditions for Clearing the DTC

    • The condition for setting the DTC is no longer present and the scan tool Clear DTCs function is used.
    • The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Step

Action

Value(s)

Yes

No

1

Did you perform the ABS Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - ABS

2

Replace the EBCM. Refer to Electronic Brake Control Module Replacement .

Did you complete the replacement?

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System OK

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