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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10112528

Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerELECTRICAL SYSTEM

Relation to the target vehicle

  • The source's vehicle field includes the trim.
Model year
Match 2006 — Source vehicle field
Model
Match YUKON DENALI XL — Source vehicle field
Trim
Match Denali — Source vehicle field

What the manufacturer’s document says

PIC4935D ・ normal characteristic (no repair) ・ for GM vehicles in general

Applies to

  • Applies to 2000-2013 GM passenger cars and light duty trucks with OnStar Gen6, Gen7, Gen8 or Gen9.

    the passage
    2000-2013 GM Passenger Car and Light Duty Trucks With OnStar Gen6, Gen7, Gen8, or Gen9

Fault

  • During a battery parasitic drain test it may be unclear what the normal current reading of the OnStar system should be.

    the passage
    During battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar® system.

Finding the cause

Possible causes

  • The OnStar system stays powered after ignition off for an extended time so that remote services such as door unlock, horn and light flash can be carried out.

    the passage
    The OnStar® system will stay powered up after ignition off for an extended time in order to allow for remote services like door unlock, horn honk, light flash, etc.

Steps to confirm (in the document’s order)

  1. A green status LED on the OnStar keypad normally means an active account; a red LED means a system DTC.

    the passage
    A green status LED on the OnStar® keypad normally indicates an active OnStar® account. A red LED indicates a system DTC.

  2. Identify the OnStar generation with a Tech 2 under Body > VCIM > Module ID Information > Module Information 2.

    the passage
    Technicians may identify the system generation by using a Tech 2 (Body>VCIM>Module ID Information>Module Information 2)

  3. Expected OnStar module draw with ignition on is 240 to 400 mA.

    the passage
    • IGN ON - 240 to 400 mA

  4. With ignition off the expected draw is 3 to 20 mA for 48 hours (or 120 hours on Gen9, FCP1 (Volt) and specified VCPs).

    the passage
    • IGN OFF - 3 to 20 mA for 48 hours or 120 hours on Gen9, FCP1 (Volt), and specified VCP's

  5. After those 48 hours (or 120 hours) with ignition off, the expected draw falls to 0.2 to 0.8 mA.

    the passage
    • IGN OFF - 0.2 to 0.8 mA after 48 hours or 120 hours on Gen9, FCP1 (Volt), and specified VCP's

Correction

Caution

  • All Gen 6, 7, 8 and 9 systems stay powered continuously for 48 hours from ignition off.

    the passage
    All Gen 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition off.

  • After the 48 hours, Gen 6 and some Gen 7 power off; Gen 7.XXL and all Gen 8 cycle 9 minutes off and 1 minute on for a further 72 hours.

    the passage
    After the 48 hours the Gen 6 and some Gen 7 power off; Gen 7.XXL, and all Gen 8 systems will enter a 9 minute OFF 1 minute ON power cycle for an additional 72 hours.

  • During long current monitoring a current spike may appear, caused by a cellular registration call triggered by the local cellular system.

    the passage
    it is possible that you may see an amperage spike caused by a cellular registration call that was triggered by the local cellular system

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

    本予備情報通知は、バッテリーの寄生ドレイン試験を実施する際に、OnStarシステムからの通常の電力消費読み値について技術者が混乱する可能性がある車両に関する情報を提供するものです。技術者は、各種OnStarシステムの電力サイクルを理解する必要があります。全ての第6世代、第7世代、第8世代、および第9世代システムは、イグニッション切断後48時間、連続的に電力が供給されます。イグニッション切断後120時間経過すると、これらシステムは完全に電力が切断されます。Onstarモジュールの消費電流：* イグニッションON時 - 240～400ミリアンペア。* イグニッションOFF時 - 第9世代および車両通信プラットフォームの場合、48時間または120時間の間、3～20ミリアンペア。* イグニッションOFF時 - 第9世代および車両通信プラットフォームの場合、48時間または120時間経過後、0.2～0.8ミリアンペア。 Machine translation (unreviewed)

    This Preliminary Information communication provides information to the technician about vehicles that during battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system. Technician should understand the power cycles of the various OnStar systems. All Generation 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition off. After 120 hours from ignition off, these systems then completely power off. The Onstar modules draw: * IGN ON - 240 to 400 Milliamp. * IGN OFF - 3 to 20 Milliamp for 48 hours or 120 hours on Gen 9 and vehicle communication platforms. * IGN OFF - 0.2 to 0.8 Milliamp after 48 hours or 120 hours on Gen 9 and vehicle communication platforms.
    Go to this passage in the original

Source

Source
NHTSA Manufacturer Communications
Source reference
10112528
Received by source
2017-08-15
Incident date
Unknown

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Manufacturer communication 10112528 — 2006 GMC YUKON DENALI XL | FaultCrate