Subject: | NP4/8 Unable to Program TCCM Module after Replacement |
Models: | . |
When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
In order to successfully program a replacement ATC, it is important to follow these instructions:
If after following this procedure the error message is still displayed or if the programming event is not successful, contact the Techline Customer Support Center (TCSC) for assistance at 1-800-828-6860 or visit the Techline web site at techline.gm.com.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.