GM Service Manual Online
For 1990-2009 cars only

The EBCM contains sophisticated on-board diagnostics. When a Scan Tool accesses the EBCM on-board diagnostics, the EBCM on-board diagnostics identify the source of any system malfunction as specifically as possible. The EBCM on-board diagnostics also diagnose whether the malfunction is intermittent.

The following actions occur when using the Scan Tool with ABS.

    â€¢ The Scan Tool specifically identifies the last DTC.
    â€¢ The specific ABS data stores at the time of the malfunction.
    â€¢ Information about the first five DTCs set and the last DTC set becomes available.
    â€¢ The input and output can be monitored.
    â€¢ Malfunction confirmation and repair verification are enabled.
    â€¢ The manual control of components and the automated functional tests become available.