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Source reference 2004-04-51

Manufacturer communication — 2003 GMC FULLSIZE PICKUPS AND UTILITIES (YUKON)

Reporter type: Manufacturer

Vehicles as recorded

What the manufacturer’s document says

03-04-21-001D ・ fault and correction ・ names no model (for full-size utilities)

Applies to

  • Row for 2003 Fullsize Pickups and Utilities: transfer case service light, New Venture Gear transfer case.

    the passage
    2003 Fullsize Pickups and Utilities – Transfer Case Service Light/New Venture Gear Transfer Case

Finding the cause

Steps to confirm (in the document’s order)

  • Verify that the encoder motor is the primary cause.

    the passage
    Verify that the encoder motor is the primary cause.

Correction

Repair

  • Replace the encoder motor sensor and reprogram the TCCM; the labor operation is K9980.

    the passage
    Replace encoder motor sensor and reprogram TCCM. Labor Operation: K9980

Caution

  • Do not replace the module, the encoder motor or the transfer case for DTCs C0327, P0836, P0500; the reference is bulletin 03-04-21-001D.

    the passage
    Don’t replace the module, encoder motor or transfer case for DTCs C0327, P0836, P0500 03-04-21-001D

What is needed

Parts and materials
  • Encoder motor sensor (after verifying that the encoder motor is the primary cause)
Labor time
  • Labor Operation K9980 (no time given)
Special tools
Not stated
Scan tool
  • Reprogram the TCCM

Only what the technical documents state. "Not stated" does not mean not needed.

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

  1. Communication summary

    トラックの問題 – Fix It Right The First Time（新しい項目は太字） 2003 フルサイズピックアップおよびユーティリティ – トランスファーのサービスランプ／New Venture Gear 製トランスファー エンコーダーモーターが主な原因であることを確認する。 エンコーダーモーターのセンサーを交換し、TCCM を再プログラムする。作業コード: K9980 DTC C0327、P0836、P0500 でモジュール、エンコーダーモーター、トランスファーを交換しないこと 03-04-21-001D Machine translation (unreviewed)

    Truck Issues – Fix It Right The First Time (new issues in bold) 2003 Fullsize Pickups and Utilities – Transfer Case Service Light/New Venture Gear Transfer Case Verify that the encoder motor is the primary cause. Replace encoder motor sensor and reprogram TCCM. Labor Operation: K9980 Don’t replace the module, encoder motor or transfer case for DTCs C0327, P0836, P0500 03-04-21-001D
    Go to this passage in the original

Source

Source
GM TechLink
Source reference
2004-04-51
Received by source
2004-04-01
Incident date
Unknown

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