LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 1987 >> Electra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Anti-Lock Brake System (Fwd)) >> Symptom Diagnosis Charts >> Chart B6, Miscellaneous EBCM Inputs

Chart B6, Miscellaneous EBCM Inputs

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, 1990 Cadillac Fleetwood, and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
  1. The first circuit in this chart is the Diagnostic Enable. This consists of a circuit from EBCM pin No. 26 to ALDL (Assembly Line Diagnostic Link) pin H. Normally grounding ALDL pin H before turning on ignition, will cause the EBCM to go into diagnostic mode.
  2. The brake lamp switch receives power through Fuse No. 13. When the brake pedal is depressed a signal is sent on circuit 20 to EBCM pin No. 12. This causes the EBCM to increase its sensitivity to wheel speed sensor inputs.
Fig 1: Flow Chart B6, Miscellaneous EBCM Input
G109722Courtesy of GENERAL MOTOR CO.
scientia non olet · About LEMON Manuals