NHTSA ID Number: 10245817
Manufacturer Communication Number: 140604001A
TSB/Document Date: 2023-12-04
Summary
Service Engine Soon (SES) Light Comes On with DTCs P0420, P0430 Set
File in Section:
Bulletin No.:
Service Bulletin
Date:
06 - Engine
14-06-04-001A
March, 2014
TECHNICAL
Subject:
Service Engine Soon (SES) Light Comes On with DTCs P0420, P0430 Set
Models:
2009-2011 Chevrolet
Corvette ZR1
Equipped with 6.2L Engine (RPO LS9)
This Bulletin has been revised to update the Warranty Information. Please discard Corporate
Bulletin Number 14-06-04-001.
Condition
Some customers may comment that the service engine
soon (SES) light is on. Technicians may find DTCs
P0420, P0430 stored in history.
Parts Information
Part Number
Description
25958412
Exhaust Pipe Assembly
Correction
25958408
Converter Pipe Assembly – RH
For the 2009-2011 model year exhaust systems,
replace the catalytic converter and pipe assemblies, in
between the exhaust manifolds and mufflers, with the
2012-2013 model year parts numbers listed below and
update the ECM calibration.
Important: The technician will have to call in a for a
VCI number provided by the Techline Customer
Support Center (TCSC). Updating the components
without the cal will cause the SES light to come on.
25958409
Converter Pipe Assembly – LH
Warranty Information
For vehicles repaired under the U.S. (8 years/
80,000 miles) or Canadian (8 years/130,000 km)
Emission Warranty, use:
Labor
Operation
Description
Labor
Time
4080278*
Both Converter Pipes and
Exhaust Pipe Replacement
2.6 hrs
*This is a unique Labor Operation for Bulletin use only. It will
not be published in the Labor Time Guide.
Note: The labor time includes Engine Control Module
Reprogramming with SPS.
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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LLC. All Rights Reserved.
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TSB/Document ID: 140604001A
Replacement Service Bulletin Number:
MFR Communication Date: 2014-03-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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