Source reference 10113059
Manufacturer communication — 2006 GMC YUKON DENALI XL
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
PIP3119L ・ fault and correction ・ names this vehicle
Applies to
The model list includes the 2004 - 2013 GMC Savana, Sierra, Sierra Hybrid, Yukon and Yukon Hybrid.
the passage
2004 - 2013 GMC Savana, Sierra, Sierra Hybrid, Yukon, Yukon Hybrid
It applies to vehicles with a V8 engine, gas only.
the passage
With a V8 Engine (gas only)
Fault
An SES light may appear on low mileage vehicles or vehicles that recently had the catalytic converter replaced, with DTCs P0420 and/or P0430 stored.
the passage
A SES light may be experienced on low mileage vehicles, or vehicles that have recently had the catalytic converter replaced. Upon inspection, DTCs P0420 and/or P0430 may be stored.
Finding the cause
Possible causes
On a new vehicle, catalytic converter efficiency DTCs P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter.
the passage
On a new vehicle, catalytic converter efficiency DTCs P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter.
If the DTCs set shortly after the catalytic converter is replaced, it may be because the engine run time restrictions are no longer in place since the vehicle is no longer new.
the passage
If the DTCs set shortly after the catalytic converter is replaced, it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new.
Steps to confirm (in the document’s order)
On a new or low mileage vehicle, use the Tech 2 to verify engine run time on the Engine Hour Meter in the IPC data list; if it is less than one hour, the battery may have been disconnected or another power loss may have occurred during manufacturing.
the passage
use the Tech 2 to verify engine run time on the Engine Hour Meter in the IPC Data Display/Data 1 List. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing.
Restart the engine and operate the vehicle at the conditions for running the DTC P0420/430 tests.
the passage
Restart the engine and operate vehicle at the conditions for running the DTC P0420/430 tests
Correction
Repair
If this occurs, clear the DTCs and perform the drive cycle given in the document.
the passage
If this occurs, clear the DTCs and perform the drive cycle below.
Drive at sustained highway speed for 25 to 30 minutes, bring the vehicle to a stop, and shut off the engine for 1 minute.
the passage
Drive vehicle at sustained highway speed for 25 to 30 minutes 2. Bring vehicle to a stop 3. Shut off the engine for 1 minute
Restart the engine and resume highway speed for an additional 10 to 15 minutes, bring the vehicle to a stop, and shut off the engine for 1 minute.
the passage
Restart the engine and resume highway speed for an additional 10 to 15 minutes 5. Bring vehicle to a stop 6. Shut off engine for 1 minute
If the diagnostics do not pass, perform SI diagnostics and repair as necessary.
the passage
If the diagnostics do not pass, perform SI diagnostics and repair as necessary.
What is needed
- Parts and materials
- Not stated
- Labor time
- Not stated
- Special tools
- Not stated
- Scan tool
- Not stated
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
Communication summary
本プリリミナリ情報通知は、低走行距離でサービスエンジンスーン警告灯が点灯する可能性のある車両の診断および修理のステップについて、整備士に情報を提供するものです。整備士は、診断コードP0420および/またはP0430が入っているのを見つける場合があります。整備士は、触媒コンバーターの効率診断コードP0420およびP0430は、触媒コンバーターのブレークインを許可するためにエンジン始動時間の最初の1時間は無効であることを認識すべきです。整備士はTech2を使用して、メーター内のエンジンアワーメーター上のエンジン始動時間を確認してから、データ表示/スキャンツール内のデータ1リストを照合する必要があります。エンジン始動時間が1時間未満の場合、バッテリーが切断されたか、車両製造中に別の車両電力喪失イベントが発生した可能性があります。整備士は診断コードをクリアしてドライブサイクルを実行する必要があります。触媒コンバーターが交換され、診断コードが入った場合、車両が新しくなくなったため、エンジン始動時間の制限がもはや有効でないことが原因の可能性があります。整備士は診断コードをクリアしてドライブサイクルを実行する必要があります。 Machine translation (unreviewed)
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.
Go to this passage in the original
Source
- Source
- NHTSA Manufacturer Communications
- Source reference
- 10113059
- Received by source
- 2017-08-15
- Incident date
- Unknown
Open original text and sourceOpen the provider's page (external)