× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

Automotive Technical Discussion Forum

Professional automotive forum for all types of vehicle repair discussion that does not fit into one of our more specific technical forums. Discussions include both OBD and OBD2, engine performance analysis, diagnostic best practices, service information, vehicle standards such as J1962, J1939, J2534, OBD2 modes (e.g. MODE$06), ignition and fuel system analysis, alternative propulsion (e.g. hybrid, electric, natural gas), and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Theory Forum.

Recent Automotive Discussions in the Automotive Technical Discussion Forum

2014 Toyota Camry no A\C Driver's side
09/04/2026 in the Technical Discussion Forum
This vehicle is fully charged and single zone, but only outputs cold air on the right center and side vents. Of course Alldata has no information on the servos or blower box. I'm trying to find possible causes. There's only one servo for vent temperature ...
2005 dodge ram P3500
09/03/2026 in the Technical Discussion Forum
[Miscellaneous: 05 Dodge Ram 2500 ST 5.7L] Getting ready for a trip and just did a quick scan for any codes. BCM has a P3500 code and scan tool does not give a description. Says see service manual, and the manual I have does not list that code. No proble...
Vehicle Only Starts In Prox Mode Immobilizer b13D3 97 Code
09/02/2026 in the Technical Discussion Forum
[Electrical: 20 Mazda 3 2.5L] Got a good one here, hopefully I'm missing something simple. Car came to me that it will start only when pushing the key against the start button. Found code P1260 in ECM for theft detected and b13d3 97 for transmitter fault...
Starting A Car That Has Been Sitting For Months
09/01/2026 in the Technical Discussion Forum
I'm having a discussion with some fellow enthusiasts re what they do when starting their cars that have been sitting for months, say over the Winter. I thought I would ask this esteemed group what they do or would do. Lacking a pre-oiler, is it better to ...
Toyota Hybrid Sedan Auxiliary Battery Source
08/30/2026 in the Technical Discussion Forum
This concerns 2012 - 2017 Camry HV and 2013 - 2018 Avalon HV specifically: Does anyone have a source for the discontinued Toyota dealer Panasonic OEM batteries in S65D26R (28800-36050) or S55D23R (28800-28100)? I've been down this road before and either b...

Automotive Sponsored Discussion Forums