Foreword
These diagnostic test procedures apply to 1990 F.W.D. Imperials equipped with Chrysler's new Air Suspension System and the 1990 F.W.D. New Yorker and Dodge Dynasty equipped with Chrysler's Load Leveling System.This book contains all the steps and wiring graphics you will need to diagnose problems in these systems.
It is recommended that you read the introduction sections for EACH system before attempting to diagnose them.