User`s guide

ManualsBrandsSDX Audio ManualsMusical equipmentRUSX-C1F

April 2012 Volume 14, No. 4

continued on page 2

When owners bring in their vehicles for service regarding con-

necting a device to the audio system, a new service tool is now

available to help with diagnosis. The Multi-Media Interface

Tester (MIT), EL-50334-20, is designed to perform pass or

fail testing on the Bluetooth

, USB and auxiliary

jack connections.

The MIT outputs four

distinct audio ﬁles to test

the Bluetooth, AUX/Line-

In, and USB functions of the

audio system. The opera-

tion of each test function is

conﬁrmed by a conﬁrmation

message played back through

the vehicle’s audio system.

The MIT, for example, can test

the ability of the infotainment

system or OnStar system to pair

a device. It also can place a test

call and conﬁrm that the Bluetooth

system is working properly.

New Multi-Media

Interface Tester

Service Tool

Customer Care and Aftersales

Contents

New Multi-Media Interface Tester Service Tool ...1

Transmission Oil Cooler Flow Check

and Flush Test .............................2

When a Tool Number Isn’t a Tool ..............3

No Communication with the

Power Steering Control Module ...............3

The Cost of Not Doing Your Homework .........4

Duramax Diesel Exhaust Gas

Temperature Sensor Four Reading Incorrectly ....4

New Flex Fuel Decal Replaces Badge ...........5

Anti-Tamper Bracket Installation ...............5

High Wing Spoiler Center High Mount

Stop Lamp ................................6

Inoperative Cruise Control ...................6

Diesel Exhaust Fluid Quality Poor Message ......6

Wobble Felt during Acceleration

through 1-2 Shift ...........................7

Lack of Power Steering Assist. . . . . . . . . . . . . . . . .7

Service Know-How .........................7

Car Issues – Fix It Right the First Time ..........8

Truck Issues – Fix It Right the First Time .........9

Summary of content (9 pages)

PAGE 1
April 2012 Volume 14, No. 4 New Multi-Media Interface Tester Service Tool When owners bring in their vehicles for service regarding connecting a device to the audio system, a new service tool is now available to help with diagnosis. The Multi-Media Interface Tester (MIT), EL-50334-20, is designed to perform pass or fail testing on the Bluetooth®, USB and auxiliary jack connections. The MIT outputs four distinct audio files to test the Bluetooth, AUX/LineIn, and USB functions of the audio system.
PAGE 2
New Multi-Media Interface Tester Service Tool – continued from page 1 Test Modes MIT test modes include: • Bluetooth Test Modes – Pairs with vehicle (Hands-free cell phone) – Places a simulated test call – Confirmation message of proper Bluetooth system operation – Streaming audio from a mobile device (currently not available on Camaro and Sonic) – Confirmation message of proper Bluetooth streaming audio system operation • USB Test Modes: – Connection detection – Confirmation message of proper USB system o
PAGE 3
When a Tool Number Isn’t a Tool Today’s GM Service Information (SI) is typically authored in one location and then translated for use in many different countries. This requires resources and input from all GM global regions to determine the best service strategies and special tools needed to properly repair GM vehicles. The goal is to have common service procedures and special tools when new vehicles are launched.
PAGE 4
The Cost of Not Doing Your Homework What’s the cost of not following the proper diagnostic procedures? In one case, a new transmission. #PI0488A covers a no forward, no reverse or slipping condition on the 6L80 and 6L90 6-speed automatic transmission on some 2010-2012 CTS V, Escalade models, Avalanche, Camaro, Corvette, Express, Silverado, Suburban, Tahoe, Savana, Sierra, Yukon and Yukon XL models.
PAGE 5
New Flex Fuel Decal Replaces Badge Anti-Tamper Bracket Installation The Flex Fuel E85 badge commonly found on the rear of many flex fuel vehicles has been changed on the 2012 Equinox and Terrain. The liftgate Flex Fuel badge has been replaced with a Flex Fuel decal located on the fixed rear quarter glass.
PAGE 6
High Wing Spoiler Center High Mount Stop Lamp The GM Accessory and Camaro Transformer high wing spoiler Center High Mount Stop Lamp (CHMSL) may develop cracks in the area around the fasteners on some 2010-2012 Camaros. If this condition is observed, replace the CHSML only; it is not necessary to replace the spoiler.
PAGE 7
Wobble Felt during Acceleration through 1-2 Shift GM TechLink is published for all GM retail technicians and service consultants to provide timely information to help increase know ledge about GM products and improve the performance of the service department. Publisher: Diana Sancya GM Customer Care and Aftersales / Diana.Sancya@gm.com Editor: Lisa G. Scott GM Customer Care and Aftersales / Lisa.G.Scott@gm.com Technical Editor: Mark Spencer / mspencer@gpworldwide.
PAGE 8
Car Issues – Fix It Right the First Time Model Year(s) Vehicle Line(s)/Condition Do This Don’t Do This Reference Information/Bulletin 2012 Cruze, Verano, Volt — Knock or pop noise heard when coming to a stop or at low speeds over small bumps Verify noise is coming from front struts.
PAGE 9
Truck Issues – Fix It Right the First Time Model Year(s) Reference Information/Bulletin Vehicle Line(s)/Condition Do This Don’t Do This 2006-2009 Corvette, Escalade, Escalade ESV, Escalade EXT, G8, H2, Sierra, Silverado, STS, Suburban, XLR, XLR-V, Yukon, Yukon Denali, Yukon XL, Yukon XL Denali — Slips in Reverse or Third, delayed Reverse or Drive engagement, DTC P0776, P2715, P2723, harsh 2-3 shifts For concerns of slips in Reverse or Third, delayed Reverse or Drive engagement, DTC P0776, P2715, P272