The PASS book is the first in a series of books designed to assist the technician in diagnosing computer controlled transmissions. The word PASS stands for Pressures, Applications, Solenoids, Sensors. The purpose of this book is to be a handy reference guide to pressure specifications, application charts, solenoid and sensor readings for both Domestic and Import computer controlled transmissions. This book contains the most frequently used data for quick diagnosis and deals specifically with electronics found on the transmission itself. For diagnosing specific electrical systems through out the vehicle relating to the transmission operation, the IMPORT PASS & DOMESTIC PASS books complete the series of manuals designed to aid the technician in diagnosing computer controlled transmissions.