DTC B1012 Acura
MICU Lost Communication with Rear MICU (RJC Message)
MICU Lost Communication with Rear MICU (RJC Message)
Description
Poor Communication with Rear MICU
Cause and Solution
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
Video Guide
Diagnostic Info
- DTC Code: B1012
- Brand: Acura