Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerELECTRICAL SYSTEM:SOFTWARE

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

PIC4935F ・ normal characteristic (no repair) ・ for GM vehicles in general

Applies to

All models, model years 2000 - 2017, with OnStar Gen6, Gen7, Gen8, Gen9 and Gen10.
the passage
All All 2000 - 2017 All All All All With OnStar Gen6, Gen7, Gen8, Gen9, and Gen10

Fault

During a battery parasitic drain test it can be unclear what the normal power consumption 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

Steps to confirm (in the document’s order)

The system generation can be read 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)
All Gen 6, 7, 8 and 9 systems are 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 systems cycle 9 minutes OFF and 1 minute ON for an additional 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.
Expected current draw of the OnStar module with ignition ON is 240 to 400 mA.
the passage
IGN ON - 240 to 400 mA
With ignition OFF and in DRx (stand-by mode) the draw is 3 to 20 mA, for 48 hours on Gen 6, 7, 8.
the passage
IGN OFF and in DRx (Stand by mode) - 3 to 20 mA for 48 hours on Gen 6,7, 8, or 120 hours on Gen9, FCP1 (Volt), and specified VCP's
With ignition OFF and after DRx has been canceled the draw is 1 to 3 mA, reached after 48 hours on Gen 6, 7, 8.
the passage
IGN OFF and after DRx has been canceled - 1 to 3 mA after 48 hours on Gen 6,7, 8, or 120 hours on Gen9, FCP1 (Volt), and specified VCP's

Correction

Caution

The OnStar system stays powered for an extended time after ignition off so that remote services such as door unlock, horn honk 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. to take place as requested by the customer.
A short spike of current may be seen at the beginning and end of the 1 minute ON stage.
the passage
At the beginning and end of the 1 minute ON stage, you may experience a short spike of current.

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

Communication summary
本予備情報通知は、OnStarモジュールのバッテリー待機電流テストを実施するための販売店の整備士向け情報です。バッテリー待機電流テスト実施時、OnStarシステムからの正常な消費電力の読み値について混同が生じる可能性があります。 Machine translation (unreviewed)
This Preliminary Information communication provides information to help the dealership technicians perform a parasitic drain test for the OnStar module. When performing battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system.
Go to this passage in the original

Source

Source: NHTSA Manufacturer Communications
Source reference: 10113454
Received by source: 2017-08-15
Incident date: Unknown

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