Tips For Troubleshooting

The VTSS-related hard wired inputs to and outputs from the high-line or premium Central Timer Module (CTM) may be diagnosed and tested using conventional diagnostic tools and procedures.

However, conventional diagnostic methods may not prove conclusive in the diagnosis of the CTM, the Powertrain Control Module (PCM), or the Chrysler Collision Detection (CCD) data bus network. In order to obtain conclusive testing of the VTSS, the CTM, the PCM, and the CCD data bus network must also be checked. The most reliable, efficient, and accurate means to diagnose the VTSS requires the use of a DRB III scan tool. Refer to the appropriate diagnostic information. The DRB III scan tool can provide confirmation that the CCD data bus network is functional, that all of the electronic modules are sending and receiving the proper messages over the CCD data bus, and that these modules are receiving the proper hard wired inputs and responding with the proper hard wired outputs needed to perform their functions. See the "Vehicle Theft Security System" menu item on the DRB III scan tool.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.