Clearing Diagnostic Trouble Codes (DTCS)
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
DTCs cannot be cleared by disconnecting EBCM/EBTCM, disconnecting negative battery cable, or by turning ignition off. The trouble codes can only be cleared by using a scan tool. DTCs will be erased when ignition is cycled 100 times without fault reappearing. The ignition cycle counter in EBCM/EBTCM will be reset to zero.
- Connect scan tool. See USING SCAN TOOL. Before clearing DTCs, check and note current DTC data. Select ABS/TCS-ETS function. Select DTC(S) function and then CLEAR CODES function.
- Verify DTCs are cleared. If other DTCs are displayed, either DTCs were not cleared or ABS/TCS-ETS fault still exists. Diagnose fault and repeat procedure.