Test TC-97A - No CCD Message From Body Control Module (BCM)

WARNING: This page is about a different variant/trim than selected.

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY . For wiring diagram, see WIRING DIAGRAMS - 2.4L article.

Using scan tool, clear Diagnostic Trouble Codes (DTCs) from Powertrain Control Module (PCM). Start engine and allow engine to idle for one minute.
Using scan tool, check for stored DTCs. If scan tool displays NO CCD MESSAGE FROM BODY CONTROL MODULE, go to step 6). If scan tool does not display NO CCD MESSAGE FROM BODY CONTROL MODULE, go to next step.
Conditions required to set DTC are not present at this time. The PCM and BCM communicate messages across the CCD bus, as information from either module is needed to operate their respective systems. DTC may be stored in PCM when no CCD bus messages are received from BCM for 30 seconds. Possible causes are: open circuit on CCD bus, BCM not powered up, defective BCM or PCM.
Check for defective wiring or connections at PCM and BCM. The PCM is located between driver's side front fender and power distribution center, near battery. The BCM is located behind junction block, just to the left of brake pedal. See Fig 1 .

Fig 1: Identifying BCM
Inspect wiring and connectors for damage. If wiring or connectors are damaged, repair as necessary. Perform TEST VER-2A. If wiring and connectors are not damaged, see INACTIVE TROUBLE CODE CONDITION .
Ensure ignition is off. Disconnect connectors at PCM and BCM. The PCM is located between driver's side front fender and power distribution center, near battery. The BCM is located on behind junction block, just to the left of brake pedal. See Fig 1 .
Using external ohmmeter, check resistance between PCM connector terminal No. 59 (Violet/Brown wire) and BCM connector "A" (Black colored connector) terminal No. 3 (Violet/Brown wire). If resistance is 5 ohms or more, repair open circuit in Violet/Brown wire between PCM and BCM. Perform TEST VER-2A. If resistance is less than 5 ohms, go to next step.
Using external ohmmeter, check resistance between PCM connector terminal No. 60 (White/Black wire) and BCM connector "A" (Black colored connector) terminal No. 34 (White/Black wire). If resistance is 5 ohms or more, repair open circuit in White/Black wire between PCM and BCM. Perform TEST VER-2A. If resistance is less than 5 ohms, go to next step.
Reinstall connectors on PCM and BCM. Turn ignition on. Select BODY CONTROL MODULE on scan tool. If scan tool displays NO RESPONSE, replace BCM. Perform TEST VER-2A. If scan tool does not display NO RESPONSE, replace PCM. Perform TEST VER-2A.