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AutoCodes - Generic - B1899

B1899 Code - Microphone Input Signal Circuit Open

- Code Popularity: 3,635 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Jul 26, 2019
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|Code B1899 Possible Causes

  • Faulty Microphone
  • Microphone harness is open or shorted
  • Microphone circuit poor electrical connection
  • Faulty Body Control Module (BCM)

|How do I Fix the Code B1899?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B1899?

Labor: 1.0

The cost of diagnosing the B1899 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1899 Possible Symptoms?

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

|Code B1899 Description

The Body Control Module (BCM) monitors the Microphone Input. The BCM sets the OBDII code when the Microphone Input is not to factory specifications.

OBDII Code B1899 - Microphone Input Signal Circuit Open -
B1899 Code - Microphone Input Signal Circuit Open

|Need More Information on the B1899 Code?

Need more information on how to fix the B1899 code? Get Access to Factory Service Manuals

|Need Help with the B1899 Code?

Get the B1899 code diagnosed by a professional: Find a repair shop in your area

|Code B1899 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1899 code? Have you replaced any parts?
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