International Automotive Technicians’ Network

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January 16, 2017 James from Florida presents an interesting case study on a 2017 Chevrolet Volt with a DTC P1E9E – Battery Cell Balancing Circuit Issue.

2017 Volt Cell Balancing Failure
Probably, most people on this list have not dealt with a Volt unless they are dealer techs. IMO, the Volt, even though it uses over one million lines of code (more than the Space Shuttle), has proven to be one of the most reliable vehicles that G.M....

January 6, 2017 Andy from AZ strikes up an interesting discussion surrounding fuel pump waveforms.

Fuel Pump Waveform Study
I recently scoped a fuel pump and noticed a couple of things about the waveform I was not sure about, so I am hoping to stimulate some thought and conversation here....

December 14, 2016 An iATN member from Colorado shares the diagnostic process he used on a 2009 Chevrolet Suburban using a thermal camera.

Thermal Camera to Verify Battery Failure
2009 Suburban came in today with a complaint that the instrument cluster displayed a message Service charging system and/or battery. Customer indicated...

November 30, 2016 We are excited to announce that we are now beginning the beta test for our Android mobile app, supporting Android 4.4 and newer.

Android Mobile App Beta - Release Notes - 1.0.0 Build 49
Join the iATN Android Beta Providing Feedback. If you're experiencing a problem in the beta, the preferred way of reaching us is to...

November 16, 2016 Our next item we're highlighting also comes from Martin in BC this time presenting a detailed review of the NVH tool offered by PicoScope.

Vibration Diagnosis Technology
Some active dialog is taking place in a current Industry Issues thread, as posted by iATN's resident poster of All Things doom and Gloom Ozdjan Hassan, who manages to dig up and air the dirty laundry in the automotive industry. Hmm, do...

October 20, 2016 The latest iATN Review is out, lots of great information to explore.

The iATN Review

September 26, 2016 Louis from Louisiana shares some sound shop management advise in regards to customer relations, check out his summary and the ensuing discussion.

'People Person' (Hard Lessons)
Speaking with auto shop owners, I often hear, I'm not a people person. I believe the things we do effect how others react to us. For instance, those who think others are out to get them will find a lot more negative interactions. Alternatively, those who fee...

September 13, 2016 Russ from FL shares some insight on GM ECM failures for RPO’s LY7 & LP1 leaving the ignition key stuck and the instrument cluster annunciations askew.

LY7 and LP1 ECMs, GM 3.6 HFV6
I don't know how long this tip will be applicable but starting late last year, I noticed it most starting in November, there have been a much higher rate of failed new ECMs for the early HFV6 cars, LY7 and LP1 engine RPOs. The service part number is 19260507 f...

August 26, 2016 iATN members share tips on how some household chemicals can be applied in the shop.

A list of Household Chemicals that come in Handy
Over the years I have been on this site, I have read and heard of several tips for chemicals and over the counter non automotive tricks that work in a pinch. This is a Thread that needs to be easily searched when someone has an issue I suggest posting a tip in...

August 10, 2016 In this two part Equipment & Tool forum post, Chris from New Jersey shares the plans and results from his DIY Ignition Coil Tester.

DIY coil tester
Many years ago I found myself diagnosing Ford COP ignition coil units, but I didn't have great equipment (or training) to do this well. One test I did...

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