Cadillac B1328: Dash Integration Module Power Circuit High Input

What Does The Cadillac B1328 Code Mean?

Key on or engine running; DIM has power, ground and ignition not in Start mode. This DTC executes regardless of the battery voltage, except when the DTC B1390 is current, and the DIM (module) detected the voltage was more than 16.5v for 1200 ms.

What Are The Potential Causes Of The Cadillac B1328 Code?

• A Message is sent over the Class 2 circuit to all other modules
• Battery power circuit to the DIM is open or has a high resistance condition
• DIM has failed

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 86689C 399 PC Automotive Electrical Repair Kit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

GM, 2013, Service Bullettin – Prior To Any Circuit Testing.