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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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2 conditions added

Common on this vehicle:Warning light

Record by record

2 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (1)

ELECTRICAL SYSTEM1

  1. Manufacturer communication2003–2006 GMC YUKON XL ・ 2017-08-15(1 earlier editions of this document folded here)

    Vehicle Communication Interface Module LED and DTC B2455 Issue

    1. 1Fault

      • A red LED and DTC B2455 set current in the VCIM may be noticed after performing Canada upgrade bulletin 15-08-44-001.
      • When placing calls or connecting to OnStar, the person on the other end can hear the caller clearly.

    2. 2Finding the cause

      Possible causes

      • A short between the audio drain wire and the microphone drain wire has been found to cause this concern.

      Steps to confirm (in the document’s order)

      • Pull back the tape at X2 of the VCIM far enough to see where the bare wires are covered.

    3. 3Correction

      Repair

      1. Tape the bare wires individually to prevent them from shorting, then tape the harness back up.
      2. The warranty labor operation is 602058, Onstar Upgrade Wire Repair.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list includes 2003-2006 GMC Yukon/Yukon XL.
    • Condition：A red LED and DTC B2455 set current in the VCIM may be noticed after performing Canada upgrade bulletin 15-08-44-001.
    • Condition：When placing calls or connecting to OnStar, the person on the other end can hear the caller clearly.
    • Cause：A short between the audio drain wire and the microphone drain wire has been found to cause this concern.
    • Confirm：Pull back the tape at X2 of the VCIM far enough to see where the bare wires are covered.
    • Repair：Tape the bare wires individually to prevent them from shorting, then tape the harness back up.
    • Repair：The warranty labor operation is 602058, Onstar Upgrade Wire Repair.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that has a red LED and DTC B2455 setting current in the Vehicle Communication Interface Module after performing Canada upgrade. Technician will need to gain access to the Vehicle Communication Interface Module. After gaining access to the Vehicle Communication Interface Module pull the tape back on the X2 connector then tape the bare wires individually to prevent them from shorting.

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