We can't imagine any tranny operation that couldn't benefit from having a copy of GM 4L60E / 4L65E / 4L70E - 4L80E / 4L85E Transmission Diagnostic Code Book in the vicinity.
This ATSG manual provides step-by-step procedures for each and every transmission code available for all General Motors trannys that came off the line between 1991 and 2007. We'd imagine that's a lot of coding to keep track of.
Designed to be used in conjunction with scanners, the manual makes it easier to interpret computer generated codes. The GM 4L60E / 4L65E / 4L70E - 4L80E / 4L85E Transmission Diagnostic Code Book has almost 200 pages of tables, illustrations and instructions for:
- Vehicle identification
- Code criteria
- Computer connector configurations
- Transmission range switch errors
- Torque converter clutch Stuck Off/On
- System voltage malfunction
- PCM/TCM control module errors
- Shift stabilization
There's also comprehensive content on electrical equations, acronyms, electrical values and diagnostic tips.
We're not transmission pros (although we have done a few rebuilds), but we can't imagine remembering the meaning behind every code one might come across. A manual like this would be invaluable, providing quick access to the technical service information you need.
NOTE: This manual was designed with the professional in mind and requires a basic knowledge of transmissions, an understanding of vehicular electronic controls and the tools used to diagnosis these components.
The General Motors 4L60E and 4L80E Series transmissions can be found in many makes and models between 1991 and 2007.
Subject: GM 4L60E/65E/70E-4L80E/85E Transmission diagnostic code interpretations - 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007. | ATSG 4L60E/4L80E CODE BOOK