Chart A-1: Ignition Enable CKT
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1988 Buick LeSabre, 1988 Buick Electra, 1987 Buick LeSabre, 1987 Buick Electra, and 1986 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
Ignition enable circuit engergizes ECBM to perform self- diagnosis and initialize system. Battery voltage is supplied through 5-amp brake fuse to ECB M pin No. 2. Ground circuit is at ABS ground junction, located on left fender rail, at EBCM pin no. 1. ANTI-LOCK warning light will stay on if EBCM does not recive ignition enable input.