For a complete wiring diagram Refer to Section 8W.When Monitored:With the ignition onBattery voltage between 10 and 16 voltsIOD fuse installedSet Condition:If the Automatic Sway-Bar System Module either fails to receive bus messages from the Engine Control Module (ECM) for approximately 500 ms, or it receives invalid messages from the ECM, or it detects messages from the ECM are of improper data length.Possible CausesDTCs RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGESCAN C BUS CIRCUITS OPEN OR SHORTEDECM POWER AND GROUNDECMAUTOMATIC SWAY-BAR SYSTEM (ASBS) MODULE1. VERIFY DTC IS ACTIVEEnsure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.Turn the ignition on.With the scan tool, read and record ASBS DTCs.With the scan tool, read and record Environmental Data (EV Data).With the scan tool, erase ASBS DTCs.Cycle the ignition switch.With the scan tool, read ASBS DTCs.Does this DTC reset?YesGo To 2NoThe condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.Perform ASBS VERIFICATION TEST.(Refer to 2 - SUSPENSION/ACTIVE CHASSIS - STANDARD PROCEDURE)2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCsWith the scan tool, read all active DTCs from all CAN C Bus modules.Check for CAN C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.Does the scan tool display any active DTCs related to the conditions listed above?YesDiagnose and repair the DTC(s). Refer to the Table of Contents in the applicable Section.Perform BODY VERIFICATION TEST – VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).NoGo To 33. VERIFY THAT THE ECM IS ACTIVE ON THE BUSWith the scan tool, select ECU View.Verify that the ECM is active on the bus.Is the ECM active on the bus?YesGo To 4NoPerform the Stored Lost Communication test procedure.Perform BODY VERIFICATION TEST – VER 1.(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCsWith the scan tool, select Network View and select Advanced.Is there more than one module with active DTCs “Logged Against” the ECM?YesReplace/update the ECM in accordance with the service information.NoReplace and program the Final Drive Control Module in accordance with Service Information.Perform ASBS VERIFICATION TEST.(Refer to 2 - SUSPENSION/ACTIVE CHASSIS - STANDARD PROCEDURE)