LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 1999 >> Escalade >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Anti-Theft System - Escalade, Express, Pickup, SAVANA, TAHOE & YUKON DENALI) >> Diagnostic Tests >> DTC B2948: PASSLOCK™ Sensor Power Circuit High >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2000 GMC Yukon, 2000 GMC Savana Special, 2000 GMC Savana Camper Special, 2000 GMC Savana, and 2000 GMC Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. Disconnect Passlock™ module connector. Measure voltage between Passlock™ module harness connector terminal A5 (Red/White wire) and ground. See Figure. If voltage is 9-16 volts, go to next step. If voltage is not 9-16 volts, go to step  5.
  2. Disconnect Passlock™ sensor harness connector at base of steering column. Measure voltage between harness connector terminal B1 (Red/White wire) and ground. See Figure. If voltage is 9-16 volts, go to next step. If voltage is not 9-16 volts, go to step  4.
  3. Repair short to voltage in Red/White wire. See WIRING DIAGRAMS . After repairs, go to step  6.
  4. Replace Passlock™ sensor. See PASSLOCK™ LOCK CYLINDER  under REMOVAL & INSTALLATION. After repairs, go to step  6.
  5. Replace Passlock™ module. See PASSLOCK™ MODULE  under REMOVAL & INSTALLATION. After repairs, go to next step.
  6. Reconnect all connectors and components. Turn ignition on. Using scan tool, clear all DTCs. Perform reprogramming procedure. See PROGRAMMING .
scientia non olet · About LEMON Manuals