Acura B1005: MICU Lost Communication with Relay Control Module (RM Message)
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Acura B1005: MICU Lost Communication with Relay Control Module (RM Message)
OVERVIEWWhat Does The Acura B1005 Code Mean?
This code indicates PCM or F-CAN loss of communication, B-CAN system loss of communication.
NOTE: If you are troubleshooting multiple DTC’s, be sure to follow the instructions in B-CAN system diagnosis Test Mode A.
What Are The Potential Causes Of The Acura B1005 Code?
Below are some possible causes of this DTC:
- Faulty battery or charging system
- PCM or F-CAN poor connections or loose pins at connectors
- B-CAN system poor connections or loose pins at connectors
- Faulty relay control module
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
>>> Battery
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Accessories & Equipment Multiplex Integrated Control System Service Manual for B1005 – 2004 Acura TSX, pages 40-41.
