Acura B1055: Relay Control Module Lost Communication with MICU (MICU Message)
Is your scanner showing Acura B1055?
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Acura B1055: Relay Control Module Lost Communication with MICU (MICU Message)
OVERVIEWWhat Does The Acura B1055 Code Mean?
Poor communication between the Relay Control Module and the MICU.
If DTCs B1055, B1056, B1057, B1157, B1159, B1180, B1255, B1955, B2155, B2156, and B2161 are all indicated, perform the MICU input test.
What Are The Potential Causes Of The Acura B1055 Code?
- Loose or poor connections between the Relay Control Module and the MICU
- Blown fuse in the main under-hood fuse box
- Blown fuse in the under-dash fuse/relay box
- “Open” or “Short” to ground at driver’s MPCS unit
- “Open” or “Short” to ground at driver’s MICU
- “Open” or “Short” to ground at driver’s Relay Control Module
- Faulty Relay Control Module
- Faulty 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
>>> Relay Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B1055, DTCDECODE.
