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B2139: Data Mismatch (receive data does not match what was expected)

OTHER
System
Body

What Does B2139 Mean?

B2139 is a manufacturer-specific diagnostic trouble code: Data Mismatch (receive data does not match what was expected). This code applies to OTHER vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of B2139

Frequently Asked Questions

What does B2139 mean?
Data Mismatch (receive data does not match what was expected). This is a manufacturer-specific code for OTHER vehicles.
Which vehicles get code B2139?
This code appears primarily in OTHER vehicles. Check your owner's manual or a dealer for model-specific information.
Can I fix this myself?
Manufacturer-specific codes often require a brand-specific diagnostic scanner for full data. A dealer or specialist with the right tools will diagnose it most accurately.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

B2100 Door Driver Key Cylinder Switch Failure B2101 Head Rest Switch Circuit Failure B2102 Antenna Circuit Short to Ground B2103 Antenna Not Connected B2104 Door Passenger Key Cylinder Switch Failure B2105 Throttle Position Input Out of Range Low B2106 Throttle Position Input Out of Range High B2107 Front Wiper Motor Relay Circuit Short to Vbatt B2108 Trunk Key Cylinder Switch Failure B2109 Heated Wind Shield Relay Short to Vbatt (changed from Failure 2/6/97)