14-06-04-001A Service Bulletin/Repair Instructions

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not be published in the Labor Time Guide.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.

Copyright 2014 General Motors LLC. All Rights Reserved.
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