October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Code Enable Criteria

WARNING: This page is about a different car, the 2001 GMC Safari and 2001 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Following condition must be met in order for code DTC B1000 to set; control module runs a program to detect an internal fault when power up is commanded. Only requirements are voltage and ground. Program runs even if voltage is out of valid operating range.