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Home >> Jeep >> 2012 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Intrusion Transceiver Module (ITM) - Electrical Diagnostics >> DTC Troubleshooting >> B223C-00-Intrusion Transceiver Module Internal >> Diagnostic Test
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Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. With a scan tool, read and record DTCs.
    2. With the scan tool, clear DTCs.
    3. Turn the ignition off and remove the key from the ignition.
    4. Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.
    5. Disarm the VTSS.
    6. Turn the ignition on.
    7. With the scan tool, read DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .