Unknown code
- Thread starter hrlyguy2
- Start date
Not much info on that code... I found these on DP, I guess it's still good for something. Sounds like a ecm glitch or egr motor issue.
TSB Number: 060604066 NHTSA Number: 10021106 TSB Date: March 1, 2007 Date Added to File: March 5, 2007
Failing Component:
Engine And Engine Cooling:Engine
Summary:
Lbz, lly, engine with rough idle, poor performance, black/white exhaust smoke, MIL/ses light on and one or more of the following DTC's P003A, P060B, P0230, P0403, P0401, P0606, P2146, P2149, P2152, P2155. (reprogram ecm and replace egr mot
DTC P0602, P0606, P060B, P061C, P062C, P062F, or P2610
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Diagnostic System Check - Vehicle
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provide an overview of each diagnostic category.DTC Descriptors
DTC P0602
Control Module Not ProgrammedDTC P0606
Control Module Internal PerformanceDTC P060B
Control Module Analog to Digital PerformanceDTC P061C
Control Module Engine Speed PerformanceDTC P062C
Control Module Vehicle Speed PerformanceDTC P062F
Control Module Long Term Memory PerformanceDTC P2610
Control Module Ignition Off Timer PerformanceDescription
These DTCs apply to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses if the ECM is not programmed.
The ECM monitors its ability to read and write to the memory. It also monitors a timing function.
Conditions for Running the DTC
P0602
The ignition switch is ON.
The controller is identified as a service replacement ECM.P0606
The ignition switch is in Run or Crank.
The power take-off (PTO) is inactive.
The cruise control is inactive.P060B
The engine speed is more than 650 RPM.
The ECM is powered up.P061C
The ignition is ON.
The engine speed is less than 1,300 RPM.P062C
The ignition is ON.
P062F
The ignition is ON.
P2610
The ECM is powered up.
Conditions for Setting the DTC
P0602
The ECM has not been programmed at Key On and Engine Off for 0.1 second.
This diagnostic runs continuously.P0606
The ECM detects a microprocessor undervoltage or overvoltage condition. OR
The ECM detects an internal bus communication error. OR
The ECM detects an internal clock error. OR
The ECM detects an internal injector control error.
All tests run in less than 1 second.
This DTC runs continuously.P060B
The ECM detects an incorrect internal analog/digital (A/D) signal for less than 1 second.
This DTC runs continuously.P061C
The ECM detects that there is a difference between the CKP engine speed and the calculated engine speed of more than 320 RPM for less than 1 second.
This diagnostic runs continuously.P062C
The ECM detects a fault in the ship that calculates redundant vehicle speed for more than 1 second.
This DTC runs continuously.P062F
The ECM did not complete the last electronic erasable programmable read only memory (EEPROM) write event during the last ECM power down.
This diagnostic runs once per ignition cycle at power up.P2610
The ignition off-timer is less than 0 second. OR
The ignition off-timer is less than 5 seconds for more than 10 seconds. OR
The ignition off-timer is unchanged for 60 seconds. OR
The ignition off-timer is not incrementing in 1-second intervals.Action Taken When the DTC Sets
DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.Conditions for Clearing the MIL/DTC
DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.Circuit/System Testing
Observe the DTCs with the scan tool.
If DTC P0602 or P062F is set, attempt to program the ECM before replacing the ECM. Refer to Service Programming System (SPS). See: Testing and Inspection\Programming and Relearning\Service Programming System (SPS)
If DTC P0606 was set while performing SPS Programming, clear the DTCs and exit the diagnostic.
If DTC P0606 was set with DTC P0851 or P0852, first go to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions\Diagnostic Trouble Code (DTC) List - Vehicle
Test the voltage and ground circuits to the control module for the following:
A short
An open
High resistance Important: DTC P2610 can be set with a loss of battery voltage to the ECM with the ignition ON. The ignition must be in the OFF position before disconnecting the ECM.
If DTC P2610 is set, turn the ignition OFF and then completely disconnect the ECM harness connector from the ECM for approximately 1 minute. Reinstall all of the ECM connectors and then attempt to clear codes with the scan tool.
If DTC P2610 resets after code clear, replace the ECM.
Replace the ECM.Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure
TSB Number: 060604066 NHTSA Number: 10021106 TSB Date: March 1, 2007 Date Added to File: March 5, 2007
Failing Component:
Engine And Engine Cooling:Engine
Summary:
Lbz, lly, engine with rough idle, poor performance, black/white exhaust smoke, MIL/ses light on and one or more of the following DTC's P003A, P060B, P0230, P0403, P0401, P0606, P2146, P2149, P2152, P2155. (reprogram ecm and replace egr mot
DTC P0602, P0606, P060B, P061C, P062C, P062F, or P2610
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Diagnostic System Check - Vehicle
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provide an overview of each diagnostic category.DTC Descriptors
DTC P0602
Control Module Not ProgrammedDTC P0606
Control Module Internal PerformanceDTC P060B
Control Module Analog to Digital PerformanceDTC P061C
Control Module Engine Speed PerformanceDTC P062C
Control Module Vehicle Speed PerformanceDTC P062F
Control Module Long Term Memory PerformanceDTC P2610
Control Module Ignition Off Timer PerformanceDescription
These DTCs apply to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses if the ECM is not programmed.
The ECM monitors its ability to read and write to the memory. It also monitors a timing function.
Conditions for Running the DTC
P0602
The ignition switch is ON.
The controller is identified as a service replacement ECM.P0606
The ignition switch is in Run or Crank.
The power take-off (PTO) is inactive.
The cruise control is inactive.P060B
The engine speed is more than 650 RPM.
The ECM is powered up.P061C
The ignition is ON.
The engine speed is less than 1,300 RPM.P062C
The ignition is ON.
P062F
The ignition is ON.
P2610
The ECM is powered up.
Conditions for Setting the DTC
P0602
The ECM has not been programmed at Key On and Engine Off for 0.1 second.
This diagnostic runs continuously.P0606
The ECM detects a microprocessor undervoltage or overvoltage condition. OR
The ECM detects an internal bus communication error. OR
The ECM detects an internal clock error. OR
The ECM detects an internal injector control error.
All tests run in less than 1 second.
This DTC runs continuously.P060B
The ECM detects an incorrect internal analog/digital (A/D) signal for less than 1 second.
This DTC runs continuously.P061C
The ECM detects that there is a difference between the CKP engine speed and the calculated engine speed of more than 320 RPM for less than 1 second.
This diagnostic runs continuously.P062C
The ECM detects a fault in the ship that calculates redundant vehicle speed for more than 1 second.
This DTC runs continuously.P062F
The ECM did not complete the last electronic erasable programmable read only memory (EEPROM) write event during the last ECM power down.
This diagnostic runs once per ignition cycle at power up.P2610
The ignition off-timer is less than 0 second. OR
The ignition off-timer is less than 5 seconds for more than 10 seconds. OR
The ignition off-timer is unchanged for 60 seconds. OR
The ignition off-timer is not incrementing in 1-second intervals.Action Taken When the DTC Sets
DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.Conditions for Clearing the MIL/DTC
DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.Circuit/System Testing
Observe the DTCs with the scan tool.
If DTC P0602 or P062F is set, attempt to program the ECM before replacing the ECM. Refer to Service Programming System (SPS). See: Testing and Inspection\Programming and Relearning\Service Programming System (SPS)
If DTC P0606 was set while performing SPS Programming, clear the DTCs and exit the diagnostic.
If DTC P0606 was set with DTC P0851 or P0852, first go to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions\Diagnostic Trouble Code (DTC) List - Vehicle
Test the voltage and ground circuits to the control module for the following:
A short
An open
High resistance Important: DTC P2610 can be set with a loss of battery voltage to the ECM with the ignition ON. The ignition must be in the OFF position before disconnecting the ECM.
If DTC P2610 is set, turn the ignition OFF and then completely disconnect the ECM harness connector from the ECM for approximately 1 minute. Reinstall all of the ECM connectors and then attempt to clear codes with the scan tool.
If DTC P2610 resets after code clear, replace the ECM.
Replace the ECM.Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure
Here's another from diesel bombers... Sounds like the dealer reprogrammed the ecm and cleaned the egr... Have you blocked yours and turned off the egr with EFI LIVE?
#06-06-04-066B: LBZ, LLY, Engine with Rough Idle, Poor Performance, Black, White exhaust Smoke, MIL/SES Light On, DTCs Set (Reprogram ECM and Replace EGR Motor or EGR Valve, If Necessary) - (May 1, 2008)
Subject: LBZ, LLY, Engine with Rough Idle, Poor Performance, Black, White Exhaust Smoke, MIL/SES Light On and One or More of the Following DTCs P003A, P060B, P0230, P0403, P0401, P0606, P2146, P2149, P2152, P2155 (Reprogram ECM and Replace EGR Motor or EGR Valve, If Necessary)
Models: 2006-2007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic
2006-2007 GMC Savana, Sierra, Sierra Classic, TopKick C4500/C5500 Series
with 6.6L Duramax ™ Diesel Engine (VINs D, 2 -- RPOs LBZ, LLY)
Attention: This bulletin contains separate service procedures for the Van and the Truck Models regarding information on DTC P0403-EGR Solenoid Control Circuit if set.
--------------------------------------------------------------------------------
This bulletin is being revised to add part information, change warranty information and add procedures for replacing the EGR Valve Motor or EGR Valve Assembly. Please discard Corporate Bulletin Number 06-06-04-066A (Section 06 -- Engine/Propulsion System).
--------------------------------------------------------------------------------
Condition
Some customers may comment on an illumination of the MIL/SES with one or more of the following symptoms:
• Rough Idle
• Poor Performance
• Black or White Exhaust Smoke
Upon further investigation, the technician may find one or more of the following DTCs stored in the ECM:
• P003A: Turbocharger Boost Control Position Not Learned
• P060B: Control Module Analog To Digital Performance
• P0230: Fuel Pump Relay Control Circuit
• P0403: EGR Solenoid Control Circuit
• P0401: Exhaust Gas Recirculation Flow Is Insufficient
• P0606: Control Module Internal Performance
• P2146, P2149, P2152, P2155: Injector Positive Voltage Control Circuit Group 1-4
Cause
This condition may be caused by the calibration and carbon build up under the brushes of the EGR motor.
Correction
Important: If DTC P0403 was set, replace the EGR motor or EGR valve assembly depending on the vehicle application.
Check the ECM for the latest calibration.
• If the ECM does not have the latest calibrations, reprogram the ECM. A revised calibration has been developed to address these conditions. Technicians are to reprogram the ECM using SPS with the latest software available on TIS2WEB. Refer to the Engine Control Module Programming and Setup procedure in SI. As always make sure your Tech 2® is updated with the latest software version.
• If the ECM has the latest calibration and DTC P0403 was set, replace the EGR motor or EGR valve assembly depending on your vehicle. Refer to the appropriate list below.
LIGHT AND MEDIUM DUTY TRUCK-EGR VALVE MOTOR REPAIR PROCEDURE FOR DTC P0403
Important: Replace the EGR valve motor Only. Some vehicles may have a thin metal spacer between the motor and the valve that appears to be a gasket. The spacer is used to correct for production variances in some valves and should be reinstalled with the new motor.
Replace the EGR motor (1). Refer to Exhaust Gas Recirculation Valve Motor Replacement in SI.
Truck Part Information
Part Number
Description
Qty
98063338
Motor, EGR Valve
1
VAN-EGR VALVE ASSEMBLY MOTOR REPAIR PROCEDURE FOR DTC P0403
Important: Replace the EGR valve assembly with motor.
Replace the EGR valve assembly (1). Refer to Exhaust Gas Recirculation Valve Replacement in SI.
Van Part Information
Part Number
Description
Qty
97379347
Valve, EGR Assembly
(includes EGR motor)
1
97372002
Gasket, EGR Valve Cooler
1
97368325
Gasket, Center Intake Manifold
(round gasket)
1
97367014
Gasket, EGR Valve
(rectangular type to intake pipe)
1
97367013
Gasket, EGR Valve
(elongate gasket located towards the middle of EGR valve)
1
97303655
Gasket, EGR Valve
(bottom EGR valve to top EGR cooler)
1
97192618
Gasket, Exhaust Turbo Inlet Pipe
1
97188685
Gasket, Exhaust Manifold Outlet Pipe
1
94011605
Seal, Heater Outlet Pipe
(O-ring)
1
Warranty Information
Important: For additional information on warranty coverage for emission related reprogramming for Medium Duty trucks, refer to Corporate Bulletin Number 04-06-04-036C.
For vehicles repaired under the 8 year/80,000 mile (130,000 km) emission controller warranty, use:
Labor Operation
Description
Labor Time
J6353*
Module, Powertrain Control - Engine Reprogramming with SPS
0.4 hr
Add:
Motor, Exhaust Gas Recirculation (EGR) Valve - Replace
(Truck Only)
0.5 hr
Add:
Valve, Exhaust Gas Recirculation (EGR) Complete Assembly - Replace
(Van Only)
4.0 hrs
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
__________________
and...
#06-06-04-066C: LBZ, LLY Engine MIL/SES Light On With DTC P0403 Set (Check/Reprogram ECM and Perform EGR Valve Motor Cleaning Procedure) - (Jul 31, 2008)
Subject: LBZ, LLY Engine MIL/SES Light On With DTC P0403 Set (Check/Reprogram ECM and Perform EGR Valve Motor Cleaning Procedure)
Models: 2006-2007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic
2006-2007 GMC Savana, Sierra, Sierra Classic, TopKick C4500/C5500 Series
with 6.6L Duramax ™ Diesel Engine (VINs D, 2 -- RPOs LBZ, LLY)
--------------------------------------------------------------------------------
This bulletin is being revised to remove all part information, update information, change warranty information and add a procedure for cleaning the EGR valve motor. Please discard Corporate Bulletin Number 06-06-04-066B (Section 06 -- Engine/Propulsion System).
--------------------------------------------------------------------------------
Do This
Don’t Do This
Check/Reprogram ECM calibration and perform the EGR valve motor cleaning procedure.
Do NOT replace the EGR valve or EGR motor.
Condition
Some customers may comment on an illumination of the MIL/SES.
Upon further investigation, the technician may find the following DTCs stored in the ECM:
• P0403: EGR Solenoid Control Circuit
• P0401: (Exhaust Gas Recirculation Flow Is Insufficient) may also be present with P0403.
Cause
This condition may be caused by the engine control module (ECM) calibration.
Correction
Important: Verify that the 12-volt battery has a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Only use approved Midtronics 165-PCS charger or equivalent to maintain proper battery voltage during programming. The J2534 MDI will reprogram the modules in less time than the Tech 2® scan tool.
Check the ECM calibration level and reprogram the ECM with the latest calibrations, if required. An ECM calibration was released in March 2007 to address this concern. This calibration, or any that follow, is designed to address this concern. The ECM calibration is available to dealerships in TIS2WEB (website version of TIS). Refer to Engine Control Module Programming and Setup procedure in SI. As always make sure your Tech 2® is updated with the latest software version.
After the calibration check and reprogramming of the ECM (if required), the EGR valve motor cleaning procedure should be performed before returning the vehicle to the customer.
P0403 EGR Valve Motor Cleaning Procedure
Important: Make sure your Tech 2® is updated with the latest software version to access the EGR Valve Motor Cleaning software.
Technicians should perform the following cleaning procedure to ensure that DTC P0403 has been eliminated:
Start the engine. Let the engine idle until the engine coolant temperature is greater than 60°C (140°F). Then shut the engine off.
Attach a Midtronics 165-PCS charger or equivalent to maintain proper battery voltage.
Turn the ignition key to the ON position with the engine off (engine should not be running).
Attach a Tech 2® to the vehicle and clear all the codes. Important: The cleaning procedure may take up to 75 minutes to complete, it is not necessary for the technician to watch or stay with the vehicle. The EGR Solenoid Command will stop cycling and stay at 0% when the procedure is completed.
Request and start the EGR Valve Motor Cleaning procedure with a Tech 2® using the steps below.
5.1. Select "Powertrain" (1).
Example Shows 6.6L Diesel (VIN D--RPO-LBZ) Selected
5.2. Select Your Engine Type (1).
5.3. Select "Special Functions" (1).
5.4. Select "Engine Output Controls" (1).
5.5. Select "EGR Valve Motor Cleaning" (1).
5.6. Select "Start" (1).
Important: The EGR Solenoid Command will stop cycling and stay at 0% when the procedure is completed and the command state should go to "Stop".
Once the cleaning cycling is complete, disconnect the Tech 2® and remove the charger from the vehicle.
Verify the condition has been corrected by evaluating the vehicle's performance and EGR operation.
Warranty Information
Important: For additional information on warranty coverage for emission related reprogramming for Medium Duty trucks, refer to Corporate Bulletin Number 04-06-04-036E.
For vehicles repaired under the 8 year/80,000 mile (130,000 km) emission controller warranty, use:
Labor Operation
Description
Labor Time
J6353*
Module, Powertrain Control - Engine Reprogramming with SPS
0.4 hr
Add:
EGR Valve Motor Cleaning Procedure
1.5 hrs
Add:
Diagnostic Time
0.0-0.3 hr
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© 2008 General Motors Corporation. All rights reserved
#06-06-04-066B: LBZ, LLY, Engine with Rough Idle, Poor Performance, Black, White exhaust Smoke, MIL/SES Light On, DTCs Set (Reprogram ECM and Replace EGR Motor or EGR Valve, If Necessary) - (May 1, 2008)
Subject: LBZ, LLY, Engine with Rough Idle, Poor Performance, Black, White Exhaust Smoke, MIL/SES Light On and One or More of the Following DTCs P003A, P060B, P0230, P0403, P0401, P0606, P2146, P2149, P2152, P2155 (Reprogram ECM and Replace EGR Motor or EGR Valve, If Necessary)
Models: 2006-2007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic
2006-2007 GMC Savana, Sierra, Sierra Classic, TopKick C4500/C5500 Series
with 6.6L Duramax ™ Diesel Engine (VINs D, 2 -- RPOs LBZ, LLY)
Attention: This bulletin contains separate service procedures for the Van and the Truck Models regarding information on DTC P0403-EGR Solenoid Control Circuit if set.
--------------------------------------------------------------------------------
This bulletin is being revised to add part information, change warranty information and add procedures for replacing the EGR Valve Motor or EGR Valve Assembly. Please discard Corporate Bulletin Number 06-06-04-066A (Section 06 -- Engine/Propulsion System).
--------------------------------------------------------------------------------
Condition
Some customers may comment on an illumination of the MIL/SES with one or more of the following symptoms:
• Rough Idle
• Poor Performance
• Black or White Exhaust Smoke
Upon further investigation, the technician may find one or more of the following DTCs stored in the ECM:
• P003A: Turbocharger Boost Control Position Not Learned
• P060B: Control Module Analog To Digital Performance
• P0230: Fuel Pump Relay Control Circuit
• P0403: EGR Solenoid Control Circuit
• P0401: Exhaust Gas Recirculation Flow Is Insufficient
• P0606: Control Module Internal Performance
• P2146, P2149, P2152, P2155: Injector Positive Voltage Control Circuit Group 1-4
Cause
This condition may be caused by the calibration and carbon build up under the brushes of the EGR motor.
Correction
Important: If DTC P0403 was set, replace the EGR motor or EGR valve assembly depending on the vehicle application.
Check the ECM for the latest calibration.
• If the ECM does not have the latest calibrations, reprogram the ECM. A revised calibration has been developed to address these conditions. Technicians are to reprogram the ECM using SPS with the latest software available on TIS2WEB. Refer to the Engine Control Module Programming and Setup procedure in SI. As always make sure your Tech 2® is updated with the latest software version.
• If the ECM has the latest calibration and DTC P0403 was set, replace the EGR motor or EGR valve assembly depending on your vehicle. Refer to the appropriate list below.
LIGHT AND MEDIUM DUTY TRUCK-EGR VALVE MOTOR REPAIR PROCEDURE FOR DTC P0403
Important: Replace the EGR valve motor Only. Some vehicles may have a thin metal spacer between the motor and the valve that appears to be a gasket. The spacer is used to correct for production variances in some valves and should be reinstalled with the new motor.
Replace the EGR motor (1). Refer to Exhaust Gas Recirculation Valve Motor Replacement in SI.
Truck Part Information
Part Number
Description
Qty
98063338
Motor, EGR Valve
1
VAN-EGR VALVE ASSEMBLY MOTOR REPAIR PROCEDURE FOR DTC P0403
Important: Replace the EGR valve assembly with motor.
Replace the EGR valve assembly (1). Refer to Exhaust Gas Recirculation Valve Replacement in SI.
Van Part Information
Part Number
Description
Qty
97379347
Valve, EGR Assembly
(includes EGR motor)
1
97372002
Gasket, EGR Valve Cooler
1
97368325
Gasket, Center Intake Manifold
(round gasket)
1
97367014
Gasket, EGR Valve
(rectangular type to intake pipe)
1
97367013
Gasket, EGR Valve
(elongate gasket located towards the middle of EGR valve)
1
97303655
Gasket, EGR Valve
(bottom EGR valve to top EGR cooler)
1
97192618
Gasket, Exhaust Turbo Inlet Pipe
1
97188685
Gasket, Exhaust Manifold Outlet Pipe
1
94011605
Seal, Heater Outlet Pipe
(O-ring)
1
Warranty Information
Important: For additional information on warranty coverage for emission related reprogramming for Medium Duty trucks, refer to Corporate Bulletin Number 04-06-04-036C.
For vehicles repaired under the 8 year/80,000 mile (130,000 km) emission controller warranty, use:
Labor Operation
Description
Labor Time
J6353*
Module, Powertrain Control - Engine Reprogramming with SPS
0.4 hr
Add:
Motor, Exhaust Gas Recirculation (EGR) Valve - Replace
(Truck Only)
0.5 hr
Add:
Valve, Exhaust Gas Recirculation (EGR) Complete Assembly - Replace
(Van Only)
4.0 hrs
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
__________________
and...
#06-06-04-066C: LBZ, LLY Engine MIL/SES Light On With DTC P0403 Set (Check/Reprogram ECM and Perform EGR Valve Motor Cleaning Procedure) - (Jul 31, 2008)
Subject: LBZ, LLY Engine MIL/SES Light On With DTC P0403 Set (Check/Reprogram ECM and Perform EGR Valve Motor Cleaning Procedure)
Models: 2006-2007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic
2006-2007 GMC Savana, Sierra, Sierra Classic, TopKick C4500/C5500 Series
with 6.6L Duramax ™ Diesel Engine (VINs D, 2 -- RPOs LBZ, LLY)
--------------------------------------------------------------------------------
This bulletin is being revised to remove all part information, update information, change warranty information and add a procedure for cleaning the EGR valve motor. Please discard Corporate Bulletin Number 06-06-04-066B (Section 06 -- Engine/Propulsion System).
--------------------------------------------------------------------------------
Do This
Don’t Do This
Check/Reprogram ECM calibration and perform the EGR valve motor cleaning procedure.
Do NOT replace the EGR valve or EGR motor.
Condition
Some customers may comment on an illumination of the MIL/SES.
Upon further investigation, the technician may find the following DTCs stored in the ECM:
• P0403: EGR Solenoid Control Circuit
• P0401: (Exhaust Gas Recirculation Flow Is Insufficient) may also be present with P0403.
Cause
This condition may be caused by the engine control module (ECM) calibration.
Correction
Important: Verify that the 12-volt battery has a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Only use approved Midtronics 165-PCS charger or equivalent to maintain proper battery voltage during programming. The J2534 MDI will reprogram the modules in less time than the Tech 2® scan tool.
Check the ECM calibration level and reprogram the ECM with the latest calibrations, if required. An ECM calibration was released in March 2007 to address this concern. This calibration, or any that follow, is designed to address this concern. The ECM calibration is available to dealerships in TIS2WEB (website version of TIS). Refer to Engine Control Module Programming and Setup procedure in SI. As always make sure your Tech 2® is updated with the latest software version.
After the calibration check and reprogramming of the ECM (if required), the EGR valve motor cleaning procedure should be performed before returning the vehicle to the customer.
P0403 EGR Valve Motor Cleaning Procedure
Important: Make sure your Tech 2® is updated with the latest software version to access the EGR Valve Motor Cleaning software.
Technicians should perform the following cleaning procedure to ensure that DTC P0403 has been eliminated:
Start the engine. Let the engine idle until the engine coolant temperature is greater than 60°C (140°F). Then shut the engine off.
Attach a Midtronics 165-PCS charger or equivalent to maintain proper battery voltage.
Turn the ignition key to the ON position with the engine off (engine should not be running).
Attach a Tech 2® to the vehicle and clear all the codes. Important: The cleaning procedure may take up to 75 minutes to complete, it is not necessary for the technician to watch or stay with the vehicle. The EGR Solenoid Command will stop cycling and stay at 0% when the procedure is completed.
Request and start the EGR Valve Motor Cleaning procedure with a Tech 2® using the steps below.
5.1. Select "Powertrain" (1).
Example Shows 6.6L Diesel (VIN D--RPO-LBZ) Selected
5.2. Select Your Engine Type (1).
5.3. Select "Special Functions" (1).
5.4. Select "Engine Output Controls" (1).
5.5. Select "EGR Valve Motor Cleaning" (1).
5.6. Select "Start" (1).
Important: The EGR Solenoid Command will stop cycling and stay at 0% when the procedure is completed and the command state should go to "Stop".
Once the cleaning cycling is complete, disconnect the Tech 2® and remove the charger from the vehicle.
Verify the condition has been corrected by evaluating the vehicle's performance and EGR operation.
Warranty Information
Important: For additional information on warranty coverage for emission related reprogramming for Medium Duty trucks, refer to Corporate Bulletin Number 04-06-04-036E.
For vehicles repaired under the 8 year/80,000 mile (130,000 km) emission controller warranty, use:
Labor Operation
Description
Labor Time
J6353*
Module, Powertrain Control - Engine Reprogramming with SPS
0.4 hr
Add:
EGR Valve Motor Cleaning Procedure
1.5 hrs
Add:
Diagnostic Time
0.0-0.3 hr
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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The guy on diesel bombers said the dealer reprogrammed his ecm and cleaned the egr, code went away. Did you buy a tuned ecm or have one crash on you?
This is the 2nd replacement ecm from ATP (1st 1 had a check engin light that wouldnt go away and got sent back)so mike can send back his auto cal and the tuned ecm.If it can be tuned out no big eal if its going to be there inside that ecm and it cant be gotten rid of then this 1 needs to go back also.