DTC Troubleshooting: B1003 (Body Control Module): Notes
DTC B1003 : BCM Update Error
How To Use This service information .
NOTICE:
Before You Troubleshoot, Review The How To Troubleshoot .
NOTE:
- If You Are Troubleshooting Multiple DTCs, Be Sure To Follow The Instructions In B-Can System Diagnosis Test Mode A - Refer To: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS) Or Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode B - Control Unit Not Communicating Or Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .
- This DTC Is Indicated When A Body Control Module Update Is Not Completed Properly.
- Before Updating The Body Control Module, Make Sure The 12 Volt Battery In The Vehicle Is Fully Charged, And Connect A 12 Volt Jumper Battery (Not A 12 Volt Battery Charger) To Maintain System Voltage.
- Never Turn The Vehicle To The Accessory Mode Or Off (Lock) Mode, During The Reprogramming. If There Is A Problem With The Reprogramming, Turn The Vehicle To The On Mode.