This Workshop Service Repair Manual provides comprehensive information for the Chrysler 42RE Automatic Transmission, also known by its alternative designation A500SE. This robust 4-speed rear-wheel-drive transmission is a key component in the powertrain of vehicles such as the Jeep Cherokee and Wagoneer. Engineered for reliability and performance, the 42RE features an Electronic Control Unit (ECU) with adaptive shift logic, a lock-up torque converter, and an external transmission cooler for enhanced durability and efficiency. Its design prioritizes consistent operation and longevity, making it a dependable choice for demanding vehicle applications.

The purpose of this manual is to serve as an authoritative resource for maintenance, repair, and diagnosis of the Chrysler 42RE automatic transmission. It covers essential areas including detailed overhaul instructions, recommended fluid types such as ATF+4, fluid capacity specifications, and a comprehensive troubleshooting guide with diagnostic trouble codes (DTCs) and testing procedures. This English-language manual is designed to assist owners, technicians, and mechanics in understanding the transmission's technical features, performing routine maintenance, and addressing any issues that may arise, ensuring optimal performance and extending the service life of the vehicle's powertrain.