Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerTIRESWHEELS

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

PI0695A ・ fault and correction ・ names this vehicle

Applies to

Applies to 2008-2013 GMC Yukon models (note: later than the years this service covers).
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2008-2013 GMC Yukon Models
Vehicles built prior to November 1, 2012 are covered.
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All Built Prior to November 1, 2012

Fault

Customers may say the HVAC blower motor does not work or that no air flows from the vents; it may be intermittent.
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Some customers may comment that the HVAC blower motor is not functioning. They may also comment that there is no air flow from the HVAC vents. This may be an intermittent condition.

Finding the cause

Possible causes

One possible cause is the contacts in the HVAC junction block(s) at the right side of the instrument panel.
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One possible cause of this condition may be the contacts in the HVAC junction block(s) located at the right side of the instrument panel.

Steps to confirm (in the document’s order)

With the ignition on and the blower running, apply light hand pressure to the junction block connectors and see whether the movement affects blower operation.
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With the ignition key in the on position, turn on the HVAC blower and apply light hand pressure to the connectors. Determine if this movement affects the blower operation (intermittent operation).
On junction block X4, locate Pin A6, Circuit 754.
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Locate Pin A6, Circuit 754.
On X4, perform a pin drag test with test probe J-35616-2A (GY).
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Perform a pin drag test using test probe J-35616-2A (GY).
On junction block X6, locate Pin A, Circuit 542.
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Locate Pin A, Circuit 542.
On X6, perform a pin drag test with test probe J-35616-42 (RD).
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Perform a pin drag test using test probe J-35616-42 (RD).

Correction

Repair

If the terminal fails the pin drag test, replace the terminal for Pin A6, referring to Junction Block - Right I/P X4 in SI.
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If the terminal fails the pin drag test, replace the terminal for Pin A6. Refer to Junction Block - Right I/P X4 in SI.

Parts

Terminals: 12191812/19 Junction Block X4 Terminal/Tray; 12084590/3 Junction Block X6 Terminal/Tray.
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12191812/19 Junction Block X4–Terminal/Tray 12084590/3 Junction Block X6–Terminal/Tray

Part numbers printed in the document

12191812Look up at RockAuto (aftermarket candidates) ↗Search the web ↗
12084590Terminal, F Metri, Pack 630Look up at RockAuto (aftermarket candidates) ↗Search the web ↗
Discontinued (no successor stated)as stated by GMPartsGiant (checked 2026-10-06) ↗

The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

Caution

Do not replace the HVAC blower motor assembly to correct this condition.
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Do Not Replace the HVAC blower motor assembly to correct this condition.

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
本情報通知は、ヘビーデューティートラックモデルのみのホイールおよびタイヤの適切な装着およびバランス調整方法に関する情報を提供するものです。 Machine translation (unreviewed)
This informational bulletin provides information on how to properly mount and balance wheels and tires on heavy duty truck models only
Go to this passage in the original

Source

Source: NHTSA Manufacturer Communications
Source reference: 10138189
Received by source: 2018-05-21
Incident date: Unknown

Open original text and source Open the provider's page (external)