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GMC YukonModel years 2000–2006

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← Look into the faults of the GMC Yukon

Trouble code

B2476: possible causes and documented repairs — 2000–2006 GMC Yukon

Of the records of the 2000–2006 GMC Yukon, 1 state trouble code B2476 (Manufacturer communication: 1). The technical documents say how to deal with 1 of its possible causes. They are listed by the number of matching records, most first.

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Causes the technical documents say how to deal with (1)

  1. No response when the OnStar button is pressed (DTC B2476): button assembly test values

    1 matching record

    On 1998-2000 OnStar equipped vehicles there may be no response when the OnStar button is pressed.

    The OnStar VS-3B buttons may not operate and the telltale LED may not flash after the OnStar Center button or Emergency button is pressed; a DTC B2476 may also be present.

    How to tell

    • B2476

    What to do

    1. With the ignition in the On position, check for 7-10 volts between pin E6 and E1; if there is no voltage and the wire at the terminal is not shorted to ground, replace the VIU.
    2. Back probe the blue VIU connector between terminals E4 and E1: there should be no voltage with the system on and no buttons pressed.
    3. Press and hold the Call Answer/End button: the voltage should be 0.33 volts +/- 10%.
    4. Press and hold the OnStar Services button: the voltage should be 1.3 volts +/- 10%.

    2 more steps ·All steps, part numbers and sources (1 sources) →

Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.