Circuit Description

WARNING: This page does not describe the selected car, but rather 54 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.

The relay supplies power to pump motor when ABS is required. The relay is located within the EBCM.

Conditions for setting DTC:

ANTI-LOCK indicator light check complete.
High voltage on pump motor driver circuit when all are expected to low (relay not commanded on).