DTC B2957: PASS-Key(R) II DETECTION CIRCUIT (SHORT TO GROUND): Testing
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, go to BCM DIAGNOSTIC SYSTEM CHECK under SYSTEM TESTS.
- Insert ignition key into Interrogator Adapter Harness (J-35628-A) to check vehicle key code number. If valid key code exists (No. 1-15), go to next step. If valid key code does not exist, go to step 11 .
- Remove ignition key from lock cylinder. Disconnect 2-pin connector C207, located on right side of steering column, near steering column bracket. Using DVOM, check resistance between connector C207 terminals (on steering column/pigtail side). See WIRING DIAGRAMS . If resistance is infinite, go to next step. If resistance is not infinite, go to step 7 .
- Disconnect BCM Pink 32-pin connector C1. Check for continuity between ground and BCM harness connector C1 terminal D2 (White/Black wire). See Figure . If resistance is infinite, go to next step. If resistance is not infinite, go to step 9 .
- Check for continuity between BCM harness connector C1 terminals D2 (White/Black wire) and D3 (Purple/White wire). If resistance is infinite, go to step 7 . If resistance is not infinite, go to step 10 .
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Check for DTCs. If DTC B2957 is set, go to step 8 . If DTC B2957 is not set, go to step 12 .
- Replace ignition lock cylinder. See appropriate STEERING COLUMN SWITCHES article. Go to step 6 .
- Replace BCM. See BODY CONTROL MODULE (BCM) under REMOVAL & INSTALLATION. Reprogram BCM. See NEW BCM SETUP under PROGRAMMING. Go to step 13 .
- Repair short to ground in White/Black wire between BCM connector C1 and connector C207. Go to step 13 .
- Repair short between White/Black and Purple/White wires between BCM connector C1 and connector C207. Go to step 13 .
- Replace ignition key. Go to step 13 .
- System is operating properly at this time. See DIAGNOSTIC AIDS . After any repairs are made, go to next step.
- Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Check for DTCs. If any DTCs are current, perform BCM DIAGNOSTIC SYSTEM CHECK under SYSTEM TESTS. If no DTCs are current, system is operating properly.