1999 Nissan Pathfinder R50 AT Automatic Transmission Service Manual

1999 Nissan Pathfinder R50 Service Manual Documentation

• Covers the 1999 Nissan Pathfinder R50 SUV, focusing exclusively on the RE4R01A automatic transmission service, diagnostics, and internal mechanism specifications
• Nissan OEM publication, 1999 model year edition
• Contains 47 detailed diagnostic trouble code (DTC) procedures, 5 fluid pressure test protocols, and over 15 specific wiring schematic segments for the transmission control module (TCM) circuits
• No shipping wait — the PDF is available immediately after purchase
• Indexed PDF search covers every chapter and appendix
• Full-text search finds any part number in seconds
• This technical guide is the primary resource for diagnosing shifting, torque converter, and sensor-related performance issues for the 1999 Nissan Pathfinder R50 automatic drivetrain

Diagnostic and System Coverage

This 1999 Nissan Pathfinder R50 service manual provides a structured overview of the automatic transmission control systems and internal shift mechanisms. The text details the function of the transmission control module, including inputs from the throttle position sensor, engine speed signals, and fluid temperature sensors. It outlines the operating principles of shift solenoids A and B, line pressure control, and torque converter lock-up control strategies. The manual includes dedicated sections for what an OEM service publication covers regarding electrical diagnostics, transmission cross-sectional views, and internal hydraulic control circuits.

Specification and Technical Reference

Detailed specifications within the document include stall revolution benchmarks, line pressure test procedures, and resistance values for fluid temperature sensors. Reference data points include stall revolution speeds of 2,440–2,640 rpm and fluid temperature sensor resistance values recorded at 2.5 kΩ at 20°C. Connector pinout tables define voltage standards for TCM terminals, such as terminal 47, which reads approximately 1.5V at 20°C and 0.5V at 80°C. Additional data covers the diagnostic trouble code (DTC) confirmation procedures, including specific driving conditions required to trigger or clear codes via the CONSULT diagnostic tool. Reference only — always consult a certified technician before performing service on this equipment.

An official 1999 Nissan Pathfinder R50 automatic transmission service manual documenting the RE4R01A drivetrain, including troubleshooting, system operation, circuit wiring, and detailed technical specifications for the R50-series SUV build.