Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Cadillac >> 1998 >> Catera >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Anti-Theft System) >> Testing >> Testing Content Theft Deterrent System >> System Will Not Enter Alarm State

System Will Not Enter Alarm State

WARNING: This page is about a different car, the 1997 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect scan tool to Data Link Connector (DLC). Select BODY CONTROL MODULE. Select INPUTS. Select DOOR JAMB SW. Close all doors. If scan tool displays OFF, go to next step. If scan tool does not display OFF, go to step 3).
  2. Using scan tool, check door switches for intermittent malfunction by monitoring scan tool while opening and closing each door several times. If door switches are good, check wiring for possible short to chassis ground. If a problem was found, repair intermittent malfunction as necessary and go to SYSTEM CHECK. If no problem was found, go to SYSTEM CHECK.
  3. Disconnect Brown, 24-pin Body Control Module (BCM) C1 connector. See Figure . Remove left front door jamb switch. Using DVOM, check for short to chassis ground in Gray wire between connector C1, terminal B02 and drivers door jamb switch connector terminal No. 2. If problem is found, repair an necessary and go to SYSTEM CHECK. If no problem is found, go to next step.
  4. Check door jamb switch mounting screw for a clean and tight connection. If connection is good, replace door jamb switch and go to next step.
  5. Observe scan tool. If scan tool still displays ON, repeat step 3) with other three door jam switches. If a problem was found with any other door jamb switch, repair as necessary and go to SYSTEM CHECK. If no problem was found, go to next step.
  6. Ensure trunk lid is closed. Using scan tool, select TRUNK JAMB SW. If scan tool displays OFF, go to next step. If scan tool does not display OFF, go to step 8).
  7. Using scan tool, check trunk jamb switch for possible intermittent malfunction while opening and closing trunk several times. If no problem was found, check wiring for an intermittent short to chassis ground. If a problem was found, repair intermittent malfunction and go to SYSTEM CHECK. If no problem was found, go to SYSTEM CHECK.
  8. Remove trunk light switch. If scan tool displays OFF, go to next step. If scan tool does not display OFF, go to step 10).
  9. Check trunk lamp switch mounting screw for a clean and tight connection. If connection is good, replace trunk lamp switch and go to SYSTEM CHECK.
  10. Disconnect Brown, 32-pin BCM connector C2. See Figure . Using DVOM, check for a short to chassis ground in Brown/White wire between BCM connector C2, terminal D07 and trunk light switch. If no problem was found, replace rear compartment light switch and go to SYSTEM CHECK. If a problem was found, repair short to chassis ground in Brown/White wire between BCM connector C2, terminal D07 and trunk light switch and go to SYSTEM CHECK.
scientia non olet · About Mike's Workshop Manuals