Diagnosis And Testing - Vehicle Theft Security System
WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
The Vehicle Theft Security System (VTSS)-related hard wired inputs to and outputs from the 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. In order to obtain conclusive testing of the VTSS and the CTM, the Programmable Communications Interface (PCI) data bus network and all of the electronic message inputs to and outputs from the CTM must also be checked. The most reliable, efficient, and accurate means to diagnose the VTSS requires the use of a DRBIII(R) scan tool. See the "Vehicle Theft Security System" menu item oil the DRBIII(R) scan tool. Refer to ELECTRONIC CONTROL MODULES .
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG, SEAT BELT TENSIONER, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.