The RC4A-EL/JR405E by JATCO is a rear wheel drive 4 speed fully automatic electronically controlled transmission that is used in the 2003 to 2006 Mazda RX8 vehicles behind the 1.3 Rotary engine here in the United States. Outside of the U.S. it can be found in other applications such as Isuzu and General Motors. This manual contains passage ID and full hydraulic schematics.

Contents:

• Introduction
• Application Chart
• Low / Reverse Clutch Assembly
• Low Clutch Assembly
• Sprag Rotation
• 2-4 Clutch Assembly
• High and Reverse Clutch Assembly
• Case Passage Identification
• Pressure Testing
• Solenoid Information
• Valve Body Information
• Internal Wiring Harness
• Wiring Diagram
• Transmission Range Sensor Check
• Transmission Fluid Sensor Check
• TSS and VSS Check
• Diagnostic Trouble Codes
• Valve Body Mapping and Hydraulics

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