September & October I 2012
`
`UN‘
`
`UPI
`“L
`
`A new air conditioning refrigerant,
`R-1234yf, is being introduced in the new
`2013 Cadillac XTS and ATS. R-1234yf
`is a new environmenta|ly—friendly
`refrigerant that has a 99.7% lower Global
`Warming Potential (GWP) than R-134a.
`GWP is a value used to compare differ-
`ent green house gases that trap heat in
`the atmosphere. The new refrigerant
`received final approval from the U8.
`Environmental Protection Agency (EPA)
`last year.
`
`The EPA and US Department of
`Transportation have adopted new
`standards for reducing greenhouse
`gas emissions from light—duty motor
`vehicles. in addition, the European Union
`has adopted similar standards. European
`regulations ban the use of R-134a in all
`new vehicles by 2017.
`
`life of more than 13 years, giving it a
`GWP of over 1,400. R-1234yf stays in
`the atmosphere for only 11 days, for a
`GWP of 4.
`
`R-1234yf refrigerant is considered
`mildly flammable and has thermody-
`namic properties similar to R-134a.
`R-1234yf standards require service
`equipment and evaporators with safety
`features that cover this concern.
`In
`
`addition, new SAE J2843-compliant
`Recovery/Recycle/Recharge machines
`must feature integrated refrigerant iden-
`tifiers or a USB port for connection with
`a hand—held identifier. Current identifiers
`
`cannot identify R—1234yf refrigerant.
`
`IN THIS ISSUE
`
`New R-1234yf A/C Refrigerant
`Makes Its U.S. Debut .
`.
`.
`.
`.
`.
`. .
`
`. .
`
`Need Programming? Check
`CAL ID Website .
`.
`.
`.
`.
`.
`.
`.
`.
`.
`.
`
`. .
`
`. .
`
`.
`
`.
`
`New GM Vehicle Communication
`
`Interface Package Subscription .
`
`ACDe|co Supportfor Tech2Win .
`
`.
`
`Welcome to the WIP Community .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`ACDe|co dexosl 5W20 Engine Oil .
`
`Control Circuits and Test Lamps .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`. . .1
`
`. . .3
`
`. . .4
`
`. . .4
`
`. . .5
`
`. . .6
`
`. . .6
`
`. . .7
`
`The new refrigerant does not require
`significant changes to the design of
`automotive air conditioning systems.
`it also can be handled in service cen-
`
`ters in much the same way as R-134a,
`although it does require dedicated
`service equipment.
`
`R-1234yf stands for a specific com-
`pound: 1 — double bond, 2 — hydrogens,
`3 — carbons, 4- fluorines, yf — position of
`the fluoro atoms. It is a worldwide indus-
`
`try accepted solution for a low GWP
`refrigerant. The biggest benefit of the
`new refrigerant is that it breaks down
`faster in the atmosphere than R—134a.
`On average, R-134a has an atmospheric
`
`Technicians repairing or servicing
`motor vehicle air conditioning (MVACl
`systems in the U8. must be trained and
`certified by an EPA approved organiza-
`tion. Certification is obtained by passing
`an EPA approved examination. Go to
`
`information.
`
`for more
`
`Vehicles equipped with R-1234yf
`refrigerant systems have unique low and
`high side service fittings, internal heat
`
`continued on page 2
`
`Tech Tips .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`. .
`
`. .
`
`. .
`.
`.
`.
`.
`.
`.
`.
`.
`.
`Training Update .
`Take the TechConnect Reader
`
`. .
`
`Survey Today .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`. .
`
`. .
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`.
`
`. . .8
`
`. . .8
`
`GO
`
`TO THE
`
`e-EDITION
`
`— Scan the code to download a PDF of
`the current issue
`
`—
`
`, click
`the TechConnect Magazine link
`
`Product Offerings - Distribution Network 0 Customer Programs - Marketing - Training - E-Business 0 Relationships
`
`10f8
`
`Arkema Exhibit 1094
`
`

`
`New R-123l;yf AIG Refrigerant
`
`Iltneloo.
`
`— continued from page 1
`
`exchangers (|HX), and SAE International
`standard J2842-compliant evaporator
`cores. The J2842 standard states that
`
`an evaporator from an A/C system shall
`not be repaired or removed with the
`intention of using it again in the same
`or a different vehicle.
`
`There are new or revised service
`
`procedures for R-1234yf equipped vehi-
`cles (Refer to the appropriate Service
`Information for details):
`
`0 Refrigerant Recovery and Recharge
`0 Leak Test
`
`0 Evaporator Cores
`
`0 Internal Heat Exchanger
`
`GM installs fluorescent dye in the
`A/C refrigerant system during manufac-
`ture. The dye mixes with the A/C com-
`pressor oil throughout the refrigerant
`system. Leaks in the A/C system will
`be indicated in a light green or yellow
`color when using a leak detection lamp.
`Adding fluorescent dye would only be
`required after flushing the A/C system.
`Verifying some passive leaks may
`require using an SAE J2913-certified
`electronic leak detector, even though
`the system contains fluorescent dye.
`
`Retrofitting R-134a systems for
`R-1234yf refrigerant is not recommend-
`ed nor endorsed by GM.
`
`AIC Compressor Oils
`
`R—1234yf systems require the use
`of specific A/C compressor oils. In
`the GM Service Information, refer to
`HVAC > Specifications > Adhesives,
`Fluids, Lubricants and Sealers for proper
`type and use. Only GM lubricant is
`approved. The XTS A/C system uses
`PAG-PSD1, P/N 19260643 (10-4084),
`and the ATS uses PAG—ND12, P/N
`19299051 (104085).
`
`New Tools and Equipment
`
`New dedicated tools and equip-
`ment are required by EPA regulations
`to service vehicles equipped with
`R—1234yf refrigerant.
`
`GM recommends the following
`equipment or equivalent.
`
`GE-50300 Recovery/Recyc|e/
`Recharge Machine for R-1234yf A/C
`Systems — (certified to SAE J2843)
`Performs gas analysis before gas
`recovery or fills with recovery/fill lock-
`out if gas is contaminated (less than
`
`2of8
`
`
`
`GE-50300
`
`98% R-1234yf). VIN input is required.
`The VIN is retrieved via an integrated
`VCI cable connected to the vehicle's
`
`OBD2 connector or may be manually
`entered. It records and prints VIN, pres-
`sures, temperature, recovered/charged
`amount, and gas analysis results.
`
`The GE-50300 Recovery/Recyc|e/
`Recharge Machine for R—1234yf A/C
`Systems requires product activation
`within 30 days of the machine's initial
`startup. Refer to the Quick Start Guide
`and follow the on-screen instructions
`
`to complete the on-line registration and
`product activation process.
`GE-50957 Contaminated
`
`Refrigerant Recovery Machine —
`(certified to SAE J2851) Required for
`recovery of contaminated refrigerant
`systems.
`
`GE-50078 Electronic Refrigerant
`Leak Detection for R-1234yf and
`R-134a (certified to SAE J2913 for use
`
`on R—1234yf systems and certified to
`SAE J2971 for R-134a systems). The
`SAE J2843-certified equipment (G E-
`50300) requires a SAE J2913-certified
`leak detector to perform the mandated
`gross leak check.
`
`GE-50744 R-1234yf PAG Oil
`Injection Hose — Used to replace PAG
`oil
`in R-1234yf systems with belt-driven
`A/C compressors. Use with GE-45037
`and the oil specified in the appropriate
`Service Information.
`
`GE-45268-130 R-1234yf Fitting Kit
`— Refrigerant Flush Kit — Required
`to adapt GE-45268 Flushing Kit to
`R-1234yf.
`
`continued on page 3
`
`2
`
`Volume 19, Number 5 (TS-PU-0009-12)
`
`ACDelco TechConnect is published bi-monthly
`and online for technicians of Total Service
`Support (TSS) and Key Fleet accounts to
`provide timely service information, increase
`knowledge and improve the performance of the
`service center.
`
`ACDelco 360 represents our mission to look
`at our businesses at every possible angle to
`provide value and assistance to our distributors
`and their customers as well as offer a full circle
`of support with programs, tools, training and
`marketing focused on enhancing and growing
`our partnership successfully.
`Publisher:
`Rick Balabon
`ACDelco
`E-mail
`richard.ba|abon@gm.com
`Editor:
`Greg St. Aubin
`ACDelco
`E-mail
`gregory.staubin@gm.com
`Technical Editor:
`
`Mark Spencer
`E-mail ajial
`mspencer@gpwor|dwide.com
`
`Production Manager:
`Marie Meredith
`
`Desktop Publishing:
`5by5 Design LLC
`E-mail «:1-’-‘I
`dke||y@5by5dzign.com
`
`Write to: E
`ACDelco TechConnect
`P.O. Box 500
`Troy, M I 48007-0500
`
`On the Web:Q
`
`To read and search recent issues of
`TechConnect online:
`— www.acde|cotechconnect.com,
`click the TechConnect Magazine
`link, or
`— Log in to the ACDelco LMS, click
`the Resources link
`
`ACDelco service tips are intended for use by professional
`technicians, not a “doit-yourselfer." They are written to
`inform those 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 techni-
`cians have the equipment, tools, safety instructions and
`know-how to do a job properly and safely. If a condition
`is described, it cannot be assumed that the information
`applies to all vehicles or that all vehicles will have that
`condition.
`All materials and programs described in this magazine
`are subject to change. Submission of materials implies
`the right to edit and publish. Inclusion in the publication
`is not necessarily an endorsement of the individual or
`the company.
`TechConnect is published for ACDelco by Sandy
`Corporation, Troy, MI.
`
`@2012 ACDelco. All rights reserved.
`
`

`
`NEW R-1
`
`Parts Infonnation
`
`Part Number
`
`Refrigerant - continued from page 2
`
`19260234
`
`1 9260643
`(10-4084)
`
`19299051
`(10-4085)
`
`12346287
`
`R-1234yf Refrigerant
`(supplied in 4.5 kg cylinders). Currently avail-
`able through GM dealerships. Supplies will be
`available through ACDelco in the near future.
`
`XTS A/C Compressor Oil
`
`ATS A/C Compressor Oil
`
`Dye, R-1234yf Refrigerant System
`
`Supplies of R-1234yf refrigerant are expected to be
`readily available by the end of 2012.
`
`More Infonnation
`
`For additional information on the R—1234yf standards
`and new equipment, check out the ACDelco Emerging
`A/C Technology and Service seminar, S-AC07-O3.02SEM.
`It has been updated with the latest information on the
`new refrigerant as well as A/C leak detection, lubricants,
`flushing procedures and refrigerant identifiers.
`— Thanks to Cathy Cu//ins
`
`Need Programming?
`
`Check Control Module Calibrations for Free with CAL ID Website
`
`During vehicle diagnosis, it's necessary to determine
`if a control module can be updated before replacing it.
`Manufacturers release a number of calibrations that can be used
`
`to program a module to address a variety of conditions.
`
`To determine if programming is needed, GM offers a free
`online service through TlS2Web that can help determine if
`updated calibrations are available for a control module and
`programming should be performed.
`
`To view available calibrations, go to www.acde|cotechcon-
`nect.com and click GM Service Information on the left side
`
`of the home page. Scroll down to the link "Look Up Vehicle
`Calibrations (No Chargel." or go to tis2web.service.gm_com/
`tis2web.
`
`The avail-
`able calibra-
`tions for the
`control mod-
`
`ule system
`selected will
`
`In addi-
`tion, the
`Service
`Information
`uses a
`
`service pro-
`gramming
`symbol to
`identify
`modules
`
`.-..—u.-— .-.:.4a—_—._=.-W‘... a—u& new u...«.*~.u..-..~.z. il\--u-bnuq£'...lJ
`a-——..g_=.
`..—..«_a. u ~=..- mu-.-..a. ---as-.5-.1-.n_. u.u..- ‘"1!
`
`out up
`
`...u
`
`r..o._..o..........~o......u.n.......r,..-¢..<:.‘ >.o.. r.....a..... n...a...».m..-....
`<-....;... ...-.-.i...a.t.c.
`
`Check for control module
`
`calibrations online.
`
`that may
`be pro-
`grammed or require a setup procedure.
`
`Always verify a valid reason for reprogramming. A control
`module should not be reprogrammed simply because there
`are updated calibrations available. Programming a module
`requires a subscription to the GM Service Programming
`System (SPS).
`
`Get CAL II)
`
`appropri-
`ate Service
`Information
`for the neces-
`sary setup
`procedures. The Control Module References table in the
`Service Information includes links to all information related to
`
`calibration information
`
`To search for the latest electronic control module calibra-
`
`the programming of a specific control module.
`
`tions for a vehicle from the CAL ID website home page, enter
`the vehicle's Vehicle Identification Number (VIN) and select
`Get CAL ID.
`
`Select the desired control module from the menu and select
`
`Next. The systems controlled by the module will be displayed.
`Select the desired system and click Next.
`
`For some control modules, there may be only one oppor-
`tunity to set up the module correctly. Be sure that all correct
`vehicle options are selected during module setup. Some
`options only appear during the initial module setup procedure.
`If the module it setup incorrectly, it may need to be replaced.
`— Thanks to Bob Stewart
`
`3of8
`
`
`
`be displayed,
`including the
`part number,
`Calibration
`Verification
`Number
`ICVNI and
`a description of the calibration. Click Next for a summary of
`calibrations for the module.
`
`Select the desired operating system for
`the control module.
`
`Setup Procedures
`
`After programming or replacing a control module, it will
`require a setup procedure to relearn the values of vehicle sys-
`tems and to operate correctly with other components. There
`are different
`
`setup pro
`cedures to
`follow based
`on the control
`module.
`
`Check the
`
`U--«I-I
`
`v.4.-.5:-.sI'ru
`Lynn-nsai
`Ir-we :...:
`
`

`
`ACDelco is updating its service programming and diagnostics application subscriptions by adding a new annual GM Vehicle
`Communication Interface Package.
`
`The new package includes a 1-year subscription to the Global Diagnostic System 2 (GDS 2) and Tech2Win for $750.
`
`GDS 2 software is required for communicating and diagnosing new GM vehicles using the GM Global Architecture (includes
`the current generations of the Chevrolet Camaro, Equinox, Cruze, Volt,
`Sonic, Malibu and Captiva; Buick LaCrosse, Regal and Verano; GMC
`Terrain; Cadillac SRX, ATS and XTS).
`It replaces the Tech 2 scan tool.
`
`GM Calibration and Diagnostic Software
`
`
`
`Complete GM Service Support
`Package
`
`GM Service Information,
`TlS2Web — All Acccess, GDS 2,
`and Tech2Win
`
`GDS2 works with menu-driven commands using a standard Windows®
`interface on a Personal Computer (PC). It enables much more data to
`be viewed from many different perspectives and offers enhanced data
`features.
`
`Tech2Win is a PC—based application
`version of the Tech 2 and CANdi (Control
`Area Network diagnostic interface)
`module.
`
`To use either GDS 2 or Tech2Win, a
`Multiple Diagnostic Interface (MDI) tool
`is required.
`
`Access to the GM Service Programming
`System, GM vehicle calibrations, Tech
`2 scan tool diagnostic software updates
`and GDS 2 software updates are available
`online through a TlS2Web subscription.
`
`Every subscription includes access to
`the ACDelco eBusiness and TlS2Web
`
`Helpdesk — the same assistance provid-
`ed to dealerships — for issues with soft-
`ware and programming. For assistance,
`call 1-888-212-8959.
`
`— Thanks to Bob Stewart
`
`Tech 2 and Service
`Programming Package
`
`Tech 2 diagnostic software
`updates, Tech 2 View, Tech 2
`Snap Shot, Service Programming
`Software, and Tech2Win
`
`$55 for 2 days
`$275 for 3 months
`$995 per year
`
`$750 per year
`
`$225 for 1 month
`$550 per year
`
`$55 for 3 days
`
`$750 per year
`
`
`
`Tech 2 software on a PC
`
`GM Vehicle Communication
`Interface Package
`GDS 2 and Tech2Win software
`
`ACDelco Support for Tech2Win
`
`Several diagnostic tool manufactur-
`ers have recently added ISO 22900
`PDU API (International Organization for
`Standardization 22900 Protocol Data
`
`Unit Application Programming Interface)
`functions and software/hardware to their
`SAE J2534 diagnostic scan tools. These
`companies may state that the new
`software/hardware allows their J2534
`devices to use Tech2Win, the PC—based
`application version of the Tech 2 and
`CANdi (Control Area Network diagnostic
`interface) module, which is built on the
`ISO 22900 PDU API standard.
`
`Technicians requiring technical
`support for these non-GM tools
`should direct inquiries to the tool manu-
`facturers. ACDelco offers support for the
`Tech 2 scan tool and Multiple Diagnostic
`Interface IMDI) tool, but
`
`4of8
`
`The purpose of the standard
`
`‘C’
`
`Techz
`
`32 Megabyte
`
`§;f;;_I;~,',;§;‘;g:==g;j;g-
`North fir-ericm - cranium
`L! e
`
`H.
`
`LJ_‘L ‘'55
`_.'4.:l F“'“ ‘>
`EXIT * N0
`r-0
`r-1
`F2
`
`:3 J
`-6
`:9
`
`'3
`
`:5
`-4
`F8
`-7
`Fxn Euren
`O
`l SNIFT
`
`PWR
`
`does not provide support for
`non-GM tools.
`
`ISO 22900 specifies the
`common software interface for
`
`diagnostic software applications.
`
`is to ensure that an app|ica-
`tion can operate on a common
`interface to communicate with a
`manufacturer's network protocol
`and vehicle bus systems.
`Tech2Win can be loaded onto
`
`a service center's Personal Computer
`(PC) or notebook computer through a
`TlS2Web subscription. A MD) tool also
`is required. Using Tech2Win enables
`technicians to take advantage of the
`computer power of the PC or notebook
`computer and the speed of the MD),
`providing faster operation than a Tech 2.
`
`4
`
`Go to www.acde|cotechconnect.com
`and click the GM Service Information
`
`link on the left side of the home page
`for more information.
`
`For Tech 2 and MD) technical support,
`contact the ACDelco eBusiness and
`
`TlS2Web Helpdesk at 1-888-212-8959.
`— Thanks to Bob Stewart
`
`

`
`Welcome to the WIP Community
`
`WIP Community
`
`ri........:.,
`The Wet: rcooler
`
`Air. Foe Ef'1I350"S 8» E-nausl
`
`LCOME. ANGELA
`
`.- mu: -nu u in
`r...m......uv fluiwsa-v
`
`The community operates on gaming
`dynamics, so the more you engage in the
`community, the more you can move up
`in rank to earn additional permissions and
`privileges.
`
`The WIP Community features a variety
`of topics and discussions organized by
`part categories. The WaterCooler is where
`users can discuss just about anything.
`Community topics include:
`
`0 Air, Fuel, Emissions & Exhaust
`
`0 Batteries, Electrical & Wiring
`
`0 Brakes, Steering & Suspension
`
`0 Chemicals, Waxes & Lube
`
`0 Coohng & Heating
`
`0 Electronics & Navigation
`
`0 Engine & Ignition
`0 Transmission & Drivetrain
`
`0 WIP Catalog Discussions
`
`If you've ever been searching through the ACDelco catalog
`and had a question on a part, an idea, or a challenge with a
`repair you would like to share, take a few minutes to visit the
`new WIP Community.
`
`The WIP Community, a new forum and social community
`available only to WIP catalog users, offers you an opportunity
`to share your insight on repairs, ask questions, or spread the
`word on just about any topic. The input provided by other
`catalog users in the private WIP community provides useful
`peer-to—peer feedback on new parts, tough repairs, business
`best practices and much more.
`
`To sign in, click the ACDe|co Community link on your WIP
`catalog home page. Once registered, bookmark the site to
`log—in from any public computer or mobile device. Every tech-
`nician and parts person will have unique log—in credentials and
`an individual profile.
`
`I- ual/I-zmiunnns bonoral
`Dim u-mun
`
`llsets can share thelr knowledge on a topic or ask a question.
`
`Community members also can search for topics to quickly
`find the latest information, such as by part le.g. fuel filter) or
`vehicle le.g. Chevy Avalanche).
`
`In addition, users can share their knowledge about a
`topic — for example, part- or repair—re|ated tips and informa-
`tion — or to help spread the word about an upcoming event,
`including training seminars, business open houses, or other
`activities. Users also can include pictures, videos or document
`attachments with their posts.
`
`For more information about WIP and the ACDe|co catalogs,
`go to acdelcotechconnectcom and click the eBusiness tab.
`— Thanks to Angela Cox and Kelli Abbott
`
`5of8
`
`

`
`ACDelco dexos1 5W20 Engine Oil
`
`Some 2013 GM models now being
`sold specify the use of dexos1”"' SW20
`engine oil. Coming in early October,
`ACDelco will offer dexos1 SW20
`
`engine oil in drums, and soon after,
`in quarts. 2013 models that specify
`dexos1 5W20 include the new Cadillac
`
`ATS and Chevrolet Malibu equipped
`with the 2.5L 4-cylinder engine and
`the Chevrolet Spark equipped with the
`1.2L 4-cylinder engine.
`
`Currently, dexos1 is available as a
`SW30 engine oil. Refer to the vehicle's
`owner manual to determine which vis-
`
`cosity of dexos1 is specified. The use
`of a viscosity of engine oil not specified
`may affect engine performance.
`
`If dexos1 5W20 engine oil is not avail-
`able, use a SAE 5W20 viscosity oil that
`is certified by the American Petroleum
`Institute (API) and displays the API
`"Starburst" symbol, which indicates
`that the oil meets the current engine
`protection standards and fuel economy
`requirements of the International
`Lubricant Standardization and Approval
`Committee, a joint effort of U.S. and
`Japanese automobile manufacturers.
`
`GM has required dexos1 as the
`factory fill and service fill in spark
`ignited engines worldwide since the
`2011 model year.
`
`The dexos specification was designed
`to meet the exacting requirements of
`GM‘s advanced engine technology,
`including direction injection, cam phas-
`ing, turbo charging and Active Fuel
`Management. The specification has
`gone through an extensive developmen-
`tal and testing process that requires a
`number of proprietary tests not includ-
`ed in current industry standards and
`sets performance criteria at a level that
`exceeds many current standards. The
`result is a high performance fluid that:
`
`0 Has improved viscometric proper-
`ties, creating less friction in the
`engine, contributing to improved
`fuel economy
`
`0 Resists aeration, which enables
`fuel-saving devices, such as vari-
`able valve timing, to work optimally
`
`0 Offers improved oxidation and
`deposit-forming tendencies allow-
`ing emission systems to operate
`longer and optimally
`
`,
`
`./
`
`/7
`
`/‘.'_I flfltllelco...
`
`
`
`Synthetic Blend
`
`9, dexosAI ‘5‘H_)\/LL
`
`Motor Oil
`
`0 Resists degradation between oil
`changes, extending oil change
`intervals
`
`For more information about the
`
`stringent quality standards of the dexos
`specification, visit the GM dexos web
`site at www.gmdexos.com.
`
`ACDelco dexos1 engine oil is avail-
`able through the GM Oil Program in
`bulk, 55-gallon drums and quart-size
`packaged containers. Orders may be
`placed through your local ACDelco oil
`distributor.
`
`— Thanks to Chris Crosby
`
`Control circuits and Test Lamps
`
`A control circuit (output) from an
`electronic control module provides a log-
`ically controlled (by operator or software)
`voltage potential to a component or
`another electronic control unit. This con-
`
`trolled voltage potential can be anything
`from vehicle ground to vehicle system
`voltage or a manipulated (pulsed/ampli-
`tude/frequency) voltage output.
`The tool of choice to test a control
`
`circuit is a test lamp. When the control
`circuit is activated, the test lamp will
`load the circuit. If there is any resistance
`in the circuit the test lamp will not light.
`
`[)0 Not Use a Digital Multimeter
`
`Why a Digital Multimeter (DMM)
`voltage reading is not used to test
`control circuits:
`
`0 The DMM does not load the circuit
`
`being tested
`
`0 The DMM’s high input impedance
`(typically 10M ohms) would mask
`any resistive circuit condition up to
`IM ohm.
`
`0 There are also times when the
`
`DMM voltage reading will not toggle
`or change states when commanding
`the control circuit on and off. This
`
`is caused by internal filtering in the
`control module, holding a charge
`(voltage) on the control circuit.
`
`Test Lamps
`There have been two essential test
`
`lamps used over the years.
`
`0 Original — Low impedance (20 52)
`test lamp J-34142-B
`
`0 Newer — High impedance (200 9)
`test lamp J-35616-210
`
`Either test lamp works fine when
`testing a B+ (Battery Positive Voltage) or
`an ignition circuit. And up until the 2005
`model year both test lamps work fine
`testing any control circuit.
`
`However, when testing a 2006 model
`year and newer control module control
`circuit, the newer high impedance test
`lamp (J-35616-210) must be used in
`place of the original low impedance test
`lamp (J-34142-B).
`
`The issue is not with the test lamp
`but with the newer control modules.
`
`The original low impedance test lamp
`(J-34142-B) requires a high inrush
`current to fire off the bulb. When this
`
`happens, the control module shuts
`down the output driver. It's not because
`the output driver can't handle the
`temporary current spike (up to half an
`amp), but because the control mod-
`ule’s software is calibrated to turn off
`
`the output driver at a very low current
`threshold and in a very short amount of
`time (typically, only a few milliseconds).
`
`Because the on-vehicle diagnostic
`validation is done using the newer test
`lamp (J-35616-210), it's important for
`technicians to also use it when testing
`control circuits.
`
`There are some control module out-
`
`puts that will not work even with the
`newer test lamp (J-35616-210). In these
`cases, the control circuit test steps in
`the Service Information call out alterna-
`
`tive diagnostic testing methods.
`— Thanks to Dave Nowak
`
`60f8
`
`

`
`TechTips
`
`\
`
`
`
`The following technical tips provide repair information about specific conditions on a variety of vehicles. if you have a tough or unusual
`service repair, the T58 Diagnostic llotline can help. Call 1-800-825-5886, prompt #2, from 8 a.m. to 8 p.m. Ef Monday—Friday,
`to speak with a technical expert with the latest OEM information.
`
`Power Window Service
`
`Tips
`
`2008-2013 GM passenger cars and
`light-duty trucks
`
`The following service tips may be
`helpful if a front or rear side door win-
`dow is inoperative, rattles or squeaks,
`binds, operates slowly, fits poorly or is
`misaligned.
`
`Always check the appropriate Service
`Information for additional information on
`
`specific window operation and window
`regulator concerns.
`
`Window Intermittent Operation
`
`0 For 2-pin motors, first disconnect
`the motor connector and then
`
`apply a 12-volt power supply to
`the regulator motor to verify motor
`functions/activates. (This is not
`possible on 6 or 7-pin motors.)
`0 Check the wire harness for
`
`pinched/shorted wires. Check the
`switch for correct function and
`
`check the switch bezel for sticking
`switches. (If the motor activates
`
`and stops, check for window/regu-
`lator binding/alignment.)
`
`- Check for proper glass alignmentl
`attachment. Position the window
`to access the side door window
`
`regulator window attachment bolts.
`Loosen the two bolts that attach
`
`the window to the window regula-
`tor or disengage the glass from
`the snap fit attachment. Slide the
`window up and down in the run
`channel. If it does not bind, properly
`adjust — do not replace the regula-
`tor.
`If it does bind, check for defec-
`tive seal and/or proper seal installa-
`tion, debris in the glass run channel
`and the glass run channel position.
`
`Regulator/Glass Rattles
`
`0 Check for any loose fasteners
`and re-torque to specification as
`required.
`
`0 Check that the glass is in the
`channel and reinstall if not posi-
`tioned correctly.
`
`Noisy Operation
`
`0 Check for other components in the
`glass path, such as wire harness,
`impact foam, lock rods or cables.
`
`7of8
`
`0 Check for proper glass alignment]
`attachment and door seal installa-
`tion.
`
`OES. To allow proper clearance, remove
`approximately 3mm of plastic material
`from the front cover.
`
`False Glass Reversal/Glass Lowers
`
`Unexpectedly
`
`0 Check seals, re-initialize the
`window regulator and/or realign
`the glass.
`
`0 Check for debris in the glass run
`channel
`
`Slow Operation
`
`0 Check for debris in the glass run
`channel
`
`0 Lubricate the window regulator,
`if required, with GM Synthetic
`Multi-Purpose Lubricant W/PTF or
`equivalent.
`Glass Does Not Index
`
`0 Check seals, re-initialize the
`window regulator and/or realign
`the glass.
`0 Check the switch for correct
`function and check the switch
`
`bezel for sticking switches.
`
`Front Timing Cover
`Modification
`
`2003-2007 Honda Accord, Odyssey.
`Pilot and Ridgeline equipped with the
`3.0L V-6 or 3.5L V-6 engines
`
`Particular V6 engine applications may
`require a small modification to the front
`timing cover during replacement of the
`accessory drive belt tensioner (ACDe|co
`part number 38332).
`
`of material removed.
`
`This area will need to have 3mm
`
`The OES now provides an updated
`tensioner assembly that may cause
`interference with the front timing cover
`of some applications. ACDe|co also
`offers the same, updated design as the
`
`7
`
`Improper installation may result in a
`damaged front timing belt cover and
`improper accessory belt tracking, even-
`tually leading to belt failure.
`
`Replacing a Power
`Steering Cooler
`2008-2012 Buick Enclave, 2009-2012
`Chevrolet Traverse, 2007-2012 GMC
`Acadia or 2007-2010 Saturn Outlook
`
`It is critical when replacing a leaking
`or damaged power steering cooler to
`replace the cooler without introducing a
`lot of air into the system.
`
`When replacing a power steering
`cooler, first block off the hoses near the
`cooler connection with the appropriate
`clamps. Next, disconnect the cooler
`from the lines and remove the cooler.
`
`Pre-fill the new cooler on the bench
`
`and cap off the pre-filled cooler ends for
`installation.
`
`Install the new pre-filled cooler on the
`vehicle and remove the clamps on the
`hoses.
`
`Once installation is complete, be sure
`to follow the Power Steering System
`Bleed Procedure in the appropriate
`Service Information.
`
`Product Information
`
`For free technical assistance and
`
`product information regarding specific
`ACDe|co products, contact these toll-
`free information hotlines staffed by
`ASE<:ertified technicians:
`
`Brakes — 1-888-701-6169 (prompt #1)
`
`Chassis — 1-888-701-6169 (prompt #2)
`
`Clutches - 1-888-725-8625
`
`Lift Supports — 1-800-790-5438
`Shocks — 1-877-466-7752
`
`Starters and Alternators -
`1-800228-9672
`
`Steering (Pumps, Rack and Pinion,
`Gears) — 1-866-833-5567
`
`Wiper Blades — 1-800-810-7096
`
`

`
` TrainingUpdate
`
`How to Take ACDelco Training
`
`Current Instructor-Lad Training Courses
`
`G010 WWW-3CdelC0t9ChC0nn9Ct-00m
`and click the Training tab to log in to the
`ACDelco Learning Management System
`(|_M5)_
`
`° TO em" l” °°‘"S°s "' V°‘" "al"l"9
`path, open the home page to view your
`
`The following ILT courses are currently being scheduled:
`
`course Number
`S-AC07-03.01 ILT
`S-BK05-01 .01 ILT
`s BK05 o2 oi ILT
`
`.
`_
`_
`course Name
`HVAC Control System Operation and Diagnostics
`Braking Systems
`ABS Operation and Diagnosis
`
`Click Here to Show Detail, and then click
`
`S-EL06-10.02 _T
`
`Electrical Power Management
`
`The COUFSG number and W9 T0 View
`details on a specific course and to launch
`.
`or enroll in the course.
`
`Enhanced Automotive Circuit Diagnosis
`S-ELO6-11.02 _T
`S_EL06_12.0» _T
`Hybrid Technology and Service
`Body Electrical Global Diagnostics
`S-EL06—13.0‘ _T
`Advanced Body Control System Electrical Diagnostics
`S—EL06-14.0‘ _T
`° To enroll l“ an l"5t"‘°t°"L°d Training
`Engine Performance Computer Controls and Ignition System Diagnostics
`S-EP08-02.0‘ _T
`llLTl course lll‘TS are fullflay hanClS7On
`classroom courses), click Take Training >
`Instructor-Led Training to view the cata—
`log and select a specific course
`S-EPO8-04.0‘ _T
`Engine Performance Fault Monitoring and Emission System Diagnostics
`. To enroll in a Virtual classroom
`S-EPO8-05.0‘ _T
`Engine Performance Advanced Drivability Diagnostics
`Training
`course
`are 1-2
`S—EP08-06.0‘ _T
`After Combustion SGHSOTS
`hour live online courses), click Take
`S-EPO8-08.0‘ _T
`Evaporative Emissions Controls
`Training > Virtual Classroon Trainingto
`3_Ep08_09_0~ _T
`Spark Generation
`Vlew the catalog and select 3 speclllc
`S—EPO8—81.0‘ _T
`Duramax 6600 Diesel Engine Performance
`COUTSG.
`S-EPO8-81.02 _T
`Duramax Diesel Operation and Diagnosis
`S—SSO4-01.0‘ _T
`Vibration Correction Diagnostics
`S-STl0—O1.0‘ _T
`Supplemental Restraint Systems
`
`0 To launch a Web-Based Training (WBT)
`course lWBTs are 141 hour self-guided
`online courses), click Take Training >
`Web-Based Training to view the catalog
`and select a specific course.
`0 To launch a TechAssist (TAS) course
`(TAS courses are 15-20 minute‘ online
`P’e5ema_t'9“5 0“ 3 5Pe°'l'° t°P'9lv °l'Ck
`Take Trammg > Teclmsslst to Vlew the
`catalog and select a specific course.
`’ T0 'a“”°l‘ 3 Sl'“""‘“°" lS""” lswls
`require users to complete all repairs
`for a condition), click Take Training >
`simulations to View the cataiog and
`select a diagnostic challenge simulation.
`
`Training Schedule
`
`To Search for Currently scheduled Courses
`in your area, view the Training in Your Area
`section on the Home page Select Search
`terms from the drepdewn menus and click
`the Submit button.
`
`Current Virtual Classroom Training Courses
`
`The following VCT courses are currently being scheduled:
`
`Course Name
`Course Number
`S—AC07—02,0lVCT HVAC System Operation and Service Hints
`S-AC07-04 0lVCT HVAC System Engine Cooling Controls and Communication
`'
`.
`.
`.
`.
`'
`.
`.
`S—EL06-O1.0lVCT
`El
`t
`I C
`t F
`t
`d D
`S-EL06-O2.0lVCT
`Tees(ftirri2aElelcri:rll<la|
`Corl:rgc;loCsilrs<:uits
`.
`.
`.
`S—EL06-O3.0lVCT
`Serial Data Communication Networks
`S-EL06-O4.0lVCT Communication Network Diagnosis
`S-EL06-O6.0lVCT
`Two-Mode Hybrid System Safety and Special Tools
`S-EL06-O7.0lVCT
`Two-Mode Hybrid System Diagnosis and Repair
`S—EM0l—0l .OlVCT Camshaft Position Actuator Systems
`S—EM0l—02.0lVCT Active Fuel Management Operation
`,
`,
`_
`S-EMOl-O3.0lVCT Active Fuel Management Diagnosis
`S-EPO8-01.0lVCT
`6.6L Duramax Engine Diagnosis
`S—EPO8-02.0lVCT
`6.6L Duramax LMM Diesel Engine
`
`_ Thanks to Greg 5;_ Aubm
`
`S-EP08-03.0lVCT
`
`6.6L Duramax LGH and LML Diesel Engines
`
`Take the Techconnect Reader Survey Today
`TechConnect provides technicians
`of TechConnect, we'd like to hear from
`with the latest technical news and
`you. Go to the link below to take a short
`information from ACDelco and the
`survey about what automotive-related
`automotive industry. We cover a wide
`service news and information you want