Acura B1958: Rear MICU Lost Communication with Combination Switch Control Unit (WIPSW Message)
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Acura B1958: Rear MICU Lost Communication with Combination Switch Control Unit (WIPSW Message)
OVERVIEWWhat Does The Acura B1958 Code Mean?
Poor communication between the rear MICU and the Combination Switch Control Unit. (Wiper Malfunction)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
If DTCs B1007, B1062, B1063, B1155, B1156, B1957, B1958, and/or B2969 are indicated, perform the Combination Switch Control Unit input test.
If no codes are present, perform the rear MICU input test
What Are The Potential Causes Of The Acura B1958 Code?
- Loose or poor connections between the rear MICU and the Combination Switch Control Unit.
- Blown fuse in the main under-hood fuse box
- Blown fuse in the under-dash fuse/relay box
- “Open” or “Short” Condition between the rear MICU and the Combination Switch Control Unit.
- Faulty Combination Switch Control Unit
- Faulty Rear MICU, replace the rear fuse/relay box.
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
>>> Combination Switch
>>> 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 B1958, DTCDECODE.
