Acura B1012: MICU Lost Communication with Rear MICU (RJC Message)
Is your scanner showing Acura B1012?
No worries. We'll show you what it means and how to deal with it.
Acura B1012: MICU Lost Communication with Rear MICU (RJC Message)
OVERVIEWWhat Does The Acura B1012 Code Mean?
Poor Communication with Rear MICU
What Are The Potential Causes Of The Acura B1012 Code?
- If DTC B1955 is indicated with DTC B1012 suspect Rear MICU input malfuntion.
- Blown No. 4 (40 A) fuse in the main under-hood fuse box
- Blown No. 6 (7.5 A) fuse in the under-dash fuse/relay box
- Rear MICU terminals are bent, loose or corroded
- “Open” or “Short to Ground” at the Rear MICU
- “Open” or “Short to Ground” at the Under-dash MICU
- Faulty Rear MICU
- Faulty Under-dash MICU
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Acura Under-dash Fuse/Relay Box
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B1012, DTCDECODE.
