Acura B1057: Relay Control Module Lost Communication with MICU (DOORSW Message)
Is your scanner showing Acura B1057?
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Acura B1057: Relay Control Module Lost Communication with MICU (DOORSW Message)
OVERVIEWWhat Does The Acura B1057 Code Mean?
This code indicates poor communication between the Relay Control Module and the MICU
Note: If DTCs B1055, B1056, B1057, B1157, B1159, B1180, B1255, B1955, B2155, B2156, and B2161 are indicated, perform the MICU input test.
What Are The Potential Causes Of The Acura B1057 Code?
Below are some possible causes of this DTC:
- Loose or poor connections between the Relay Control Module and the driver’s 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 the Relay Control Module
- “Open” or “Short” to ground at driver’s MICU
- Faulty Relau 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
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Acura B1057, DTCDECODE.
