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B2181 Honda Code - Driver Side Door Lock Knob Switch LOCK/UNLOCK Signal Error

- Code Popularity: 629 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2181 Honda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Driver Side Door Lock Knob Switch
  • Driver Side Door Lock Knob Switch harness is open or shorted
  • Driver Side Door Lock Knob Switch circuit poor electrical connection
  • Faulty Driver Side Multiplex Control System (MPCS)
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How to Fix the DTC B2181 Honda?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2181 Honda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B2181 Honda Description

The Driver Side Multiplex Control System (MPCS) monitors the Driver Side Door Lock Knob Switch. The Driver Side MPCS sets the OBDII code when the Driver Side Door Lock Knob Switch is not to factory specifications.

OBDII Code B2181 Honda - Driver Side Door Lock Knob Switch LOCK/UNLOCK Signal Error - AutoCodes.com
B2181 Honda Code - Driver Side Door Lock Knob Switch LOCK/UNLOCK Signal Error

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Code B2181 Honda comments

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