I have a 2004 3500 and I believe the abs pump continues to function even after the motor is switched off. The portion I'm referring to is near to the drivers side firewall and has many brake like lines leading to it. The ABS and park brake lights are both illuminated. I'm getting ECU codes 0522 and 0523, which I believe are related to the oil pressure sensor. My oil press is consistently reading high, and my demeanor indicates that I have O press. Thanks for your input. Brakes are in good operating order. Let me know if you can help
Thank you for reaching out. We do repair ABS control modules Here is the link https://www.upfix.com/product-category/repair-return/abs-modules-repair/