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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wireless Ignition Module (Win) - Electrical Diagnostics >> DTC Troubleshooting >> U1197-Security Seed Response Not Received From ECM/Pcm >> Diagnostic Test

Diagnostic Test

  1. VERIFY PCM PROGRAMMING 
    1. Use the scan tool and erase all codes in the ECM/PCM.
    2. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
    3. Wait one minute, and read active ECM/PCM codes.

      Does the scan tool display this DTC as active?

      Yes 

      No