B2188 Honda Code - Communication Line Driver Side MPCS Unit Cannot Receive UART Messages From Front Passenger Side MPCS Unit
Quick Answer
The Driver Side Multiplex Control System (MPCS) communication line cannot receive UART messages from front Passenger Side Multiplex Control System (MPCS) Unit. Common causes include Faulty Driver Side Multiplex Control System (MPCS), Faulty Passenger Side Multiplex Control System (MPCS), Passenger Side Multiplex Control System (MPCS) harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2188 Honda indicates Communication Line Driver Side MPCS Unit Cannot Receive UART Messages From Front Passenger Side MPCS Unit.
- Common causes
- Common causes include Faulty Driver Side Multiplex Control System (MPCS), Faulty Passenger Side Multiplex Control System (MPCS), Passenger Side Multiplex Control System (MPCS) harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2188 Honda Description
What are the Possible Causes of the DTC B2188 Honda?
- Faulty Driver Side Multiplex Control System (MPCS)
- Faulty Passenger Side Multiplex Control System (MPCS)
- Passenger Side Multiplex Control System (MPCS) harness is open or shorted
- Passenger Side Multiplex Control System (MPCS) circuit poor electrical connection
How to Fix the DTC B2188 Honda?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2188 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B2188 Honda Code
1. What are common symptoms of OBDII code B2188 in a Honda?
Common symptoms include issues with the communication line between the driver side and front passenger side MPCS units, resulting in potential malfunctions in the vehicle's systems.
2. What could cause the OBDII code B2188 to trigger in a Honda?
The code B2188 may be triggered due to a faulty communication line between the driver side and front passenger side MPCS units, which prevents the driver side unit from receiving UART messages.
3. How can I diagnose the OBDII code B2188 in my Honda?
Diagnosing this code involves checking the communication line between the MPCS units for any faults or breaks, as well as inspecting the units themselves for any malfunctions.
4. Can a DIYer repair the OBDII code B2188 in a Honda?
Repairing this code may require advanced diagnostic tools and knowledge of automotive electrical systems. It is recommended to consult a professional mechanic for proper diagnosis and repair.
5. Is it safe to drive with the OBDII code B2188 illuminated in a Honda?
Driving with this code illuminated may affect the proper functioning of certain vehicle systems, so it is advisable to address the issue promptly to avoid any potential safety hazards.
6. How much does it typically cost to repair the OBDII code B2188 in a Honda?
The cost of repairing this code can vary depending on the extent of the issue and the labor rates of the repair shop. It's best to obtain a diagnostic assessment for an accurate estimate.
7. Can resetting the OBDII code B2188 in a Honda fix the issue?
Resetting the code may temporarily turn off the check engine light, but it will not address the underlying problem causing the communication line error between the MPCS units.
8. Are there any recalls or technical service bulletins related to OBDII code B2188 in Honda vehicles?
It is advisable to check with Honda or authorized service centers for any recalls or technical service bulletins related to the communication line issue between the MPCS units.
9. What other diagnostic trouble codes (DTCs) may be related to OBDII code B2188 in a Honda?
Other related DTCs may include codes pertaining to communication errors or malfunctions in the vehicle's control modules, such as B2189 or B2190.
10. How can I prevent the OBDII code B2188 from occurring in my Honda in the future?
Regular maintenance and inspections of the vehicle's electrical systems, including the MPCS units and communication lines, can help prevent issues that may trigger the B2188 trouble code.
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