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Diagnostic Test

  1. 1) TEST FOR INTERMITTENT CONDITION 

    Turn the ignition on.

    With the scan tool, record and erase DTC's.

    Turn the ignition off and remove the key from the ignition.

    Close all doors and arm the VTSS and wait two minutes.

    Disarm the VTSS turn the ignition on.

    Turn the ignition on and with the scan tool, read DTC's.

    Does the scan tool display B1A38-SECURITY TRANSMITTER SENSOR CIRCUIT HIGH ? 

    Yes 

    1. Go to  2).

    No 

    1. The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
    2. Perform BODY VERIFICATION TEST .
  2. 2) CHECK THE (A645) INTRUSION TRANSMITTER SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE 
    Fig 1: Checking Intrusion Transmitter Sensor Signal Circuit
    GC0045697Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Intrusion Sensor Transmitter connector

    Disconnect the Intrusion Transceiver Module connector.

    Turn the ignition on.

    Measure for voltage between chassis ground and the (A645) Intrusion Transmitter Sensor Signal circuit at the Intrusion Transceiver Module connector.

    Is there any voltage present? 

    Yes 

    1. Repair the (A645) Intrusion Transmitter Sensor Signal circuit for a short to voltage.
    2. Perform BODY VERIFICATION TEST .

    No 

    1. Replace the Intrusion Transceiver Module in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST .