Conditions For Setting DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 GMC Savana Special, 1999 GMC Savana Camper Special, 1999 GMC Savana, 1999 Chevrolet RV Cutaway, and 1999 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when voltage difference between DRIVER HIGH terminal No. 2 and DRIVER LOW terminal No. 3 is greater than or equal to 400 millivolts for 500 milliseconds during DEPLOYMENT LOOP CONTINUITY, RESISTANCE MEASUREMENT, or CONTINUOUS MONITORING tests.