GM Service Manual Online
For 1990-2009 cars only

For the following codes:

    • B0686
    • B0687
    • B0688
    • B0689

The current code will be cleared if the fault is corrected during the ignition cycle.

For the following codes:

    • B1009
    • B2955
    • B2960

The code is not cleared if the fault is corrected during the ignition cycle.

Current DTC's are cleared using the scan tool.

History codes are cleared after 100 ignition cycles, if the problem has not occurred during that period.