Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2023INTEGRA A-SPEC, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULE DIAGNOSTICSDTC TROUBLESHOOTINGDTC TROUBLESHOOTING: B1003 (BODY CONTROL MODULE)NOTES
2023 Acura Integra A-Spec, Automatic CVT Trans
DTC Troubleshooting: B1003 (Body Control Module): Notes
2023 Acura Integra A-Spec, Automatic CVT TransSECTION 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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.