This bulletin applies to 2008-2011 Buick Enclave models. During normal diagnostics and/or repair, technicians may find that the ABS light, Traction Control and/or Stabilitrak indicators may be on with no DTCs displayed in the EBCM. This condition may be due to the EBCM requiring a full power-down to reset the diagnostic monitoring after a Clear All DTCs command has been performed with the Tech2.
Do not replace the EBCM for this condition. This is not an internal EBCM hardware problem.
The condition can typically be resolved by performing a full power-down of the EBCM. The following DTCs are applicable to this condition of light-on/no DTCs C0035, C0040, C0050, C0110, C0131, C0161, C0186, C0196, C0245, C0252, C0299, C0450, C0455, C0550, C0710, U0100 and U2142.
Follow the guidelines below when performing a Tech 2 DTC Clear Code Command Request:
1. Perform Tech 2 EBCM Clear All DTCs command, if not already performed.
2. After the EBCM Clear All DTCs process is complete, the EBCM Telltales may still appear.
3. Key off ignition, remove key, open and close the driver’s door to turn off RAP (Retained Accessory Power) and wait at least 60 seconds.
4. Key on ignition. Are the EBCM-related Telltales still present?
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