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Home >> Eagle >> 1993 >> Vision ESi >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.3L/3.5L >> Fault Code Tests >> Test FC-45A - No CCD Message From Body Control Module (DTC 66)

Test FC-45A - No CCD Message From Body Control Module (DTC 66)

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS  at end of article.
  1. Turn ignition on. Using DRB-II, select BODY SYSTEMS. If DRB-II displays BUS OPERATIONAL, see see TESTS W/CODES - 3.3L/3.5L article in the ENGINE PERFORMANCE Section. If DRB-II does not display BUS OPERATIONAL, go to next step.
  2. Using DRB-II, select BODY CONTROLLER. If DRB-II displays NO RESPONSE, see see TESTS W/CODES - 3.3L/3.5L article in the ENGINE PERFORMANCE Section. If DRB-II does not display NO RESPONSE, select ENGINE and read faults. Start engine. Allow engine to idle for one minute. Read faults.
  3. If DRB-II displays NO CCD MESSAGES FROM BODY CONTROL MODULE, go to step 6). If DRB-II does not display NO CCD MESSAGES FROM BODY CONTROL MODULE, go to next step.
  4. At this time, the condition required to set fault is not present. NO CCD MESSAGES FROM BODY CONTROL MODULE fault sets when Powertrain Control Module (PCM) does not receive any messages from body control module across CCD bus for 30 seconds. Possible causes are: CCD bus failure, open CCD (+) circuit, open CCD bus (-) circuit, no power to body control module, failed PCM, or failed body control module.
  5. Inspect wiring and connectors. Repair as required. Perform TEST VER-2. If wiring and connectors are okay, see INACTIVE FAULT CONDITION . Perform TEST VER-2.
  6. If DRB-II displayed NO CCD MESSAGES FROM BODY CONTROL MODULE in step 3), turn ignition off. Disconnect PCM connector. Disconnect body control module. Using an external ohmmeter, check resistance of CCD (-) wire (White/Black wire) between PCM connector terminal No. 46 and body control module Bone colored connector terminal No. 7.
  7. If resistance is more than 5 ohms, repair CCD (-) wire for an open. Perform TEST VER-2. If resistance is more than 5 ohms, go to next step.
  8. Using an external ohmmeter, check resistance of CCD (+) wire (Violet/Brown wire) between PCM connector terminal No. 26 and body control module Bone colored connector terminal No. 8.
  9. If resistance is more than 5 ohms, repair CCD (+) wire for an open. Perform TEST VER-2. If resistance is more than 5 ohms, replace PCM. Perform TEST VER-2.
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