LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2021 >> TLX Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module - Diagnostics >> DTC Troubleshooting >> DTC B1003 >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B1003: Notes

DTC B1003  : BCM (Body Control Module) PROGRAM Error

How to use this manual .

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 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.