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Home >> Chrysler >> 2005 >> 300 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Body Control Modules) >> System Tests >> Overhead Console >> Bus Messages Missing
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Bus Messages Missing

WARNING: This page is about a different car, the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, and 2002 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: After making any repairs, perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  1. Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, go to BUS +/- SIGNALS OPEN OR NO RESPONSE FROM BCM  under COMMUNICATIONS.
  2. Using scan tool, select BODY CONTROL MODULE then SYSTEM TEST. If scan tool displays PCM ACTIVE ON BUS, go to next step. If scan tool does not display PCM ACTIVE ON BUS, go to PCM MESSAGES NOT RECEIVED  under COMMUNICATIONS.
  3. Attempt to communicate with Front Control Module (FCM). If scan tool communicates with FCM, go to next step. If scan tool does not communicate with FCM, go to NO RESPONSE FROM FRONT CONTROL MODULE  under COMMUNICATIONS.
  4. Attempt to communicate with Transmission Control Module (TCM). If scan tool communicates with TCM, replace overhead console. If scan tool does not communicate with TCM, go to NO RESPONSE FROM TRANSMISSION CONTROL MODULE  under COMMUNICATIONS.
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