2003 Nissan Altima L31 Series Automatic Transaxle Service Manual
2003 Nissan Altima L31 series technical guide detailing automatic transaxle removal and installation. Covers control system, diagnostics, and torque specifications. PN: 31940
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Models Covered & Key Technical Specifications
2003 Nissan Altima L31 Series Automatic Transaxle Manual: Nissan Altima L31 series PDF Service-Dossier
Equipment-Series: Altima L31 series // Engine-Type: Automatic Transaxle Logic // Model-Designation: L31 series
| Specification | Rating | Calibration-Spec |
|---|---|---|
| Engine Speed Signal | 450 rpm | 3,500 rpm |
| Throttle Position | 1.2V | 1.2V |
| Vehicle Speed | 10 km/h | 10 km/h |
| Fluid Temperature | 20°C (68°F) | 80°C (176°F) |
| Torque Converter Clutch Duty | 4% | 94% |
| Line Pressure Duty | 24% | 95% |
Engineering chapters address procedures, specifications, and systems.
Transmission Control Module (TCM) Functions
This manual documents the TCM's role in managing the automatic transaxle, including input signal reception and output signal transmission to solenoids. Key functions include determining line pressure, shift points, and lock-up operation, all based on signals from various sensors and the ECM.
Solenoid Valve Control Mechanisms
The manual details the control of shift solenoid valves A and B, line pressure solenoid valve, and torque converter clutch solenoid valve. It explains how these valves respond to TCM signals, influencing gear selection, line pressure regulation, and lock-up engagement for optimal vehicle performance.
Diagnostic Trouble Codes (DTCs) Explained
The product description covers the interpretation and diagnosis of various DTCs related to the automatic transaxle. It details procedures for identifying malfunctions using CONSULT-II or other diagnostic tools, referencing specific DTCs such as P0705, P0731, and P0734.
Control System Schematics and Operation
This section provides schematics of the control system, illustrating the interaction between sensors, TCM, and actuators. It includes detailed explanations of hydraulic control circuits and the function of various control valves, such as the manual valve and shuttle valve.
Professional Workshop Service Manual & Technical Specifications
Standard Overhaul Manual: Nissan Altima L31 series Automatic Transaxle 2003 PDF Service-Dossier
Equipment-Series: Altima L31 series // Engine-Type: Automatic Transaxle Logic // Model-Designation: L31 series
| Specification | Rating | Calibration-Spec |
|---|---|---|
| Engine Speed Signal | 450 rpm | 3,500 rpm |
| Throttle Position | 1.2V | 1.2V |
| Vehicle Speed | 10 km/h | 10 km/h |
| Fluid Temperature | 20°C (68°F) | 80°C (176°F) |
| Torque Converter Clutch Duty | 4% | 94% |
| Line Pressure Duty | 24% | 95% |
Engineering chapters address procedures, specifications, and systems.
Transmission Control Module (TCM) Functions
This manual documents the TCM's role in managing the automatic transaxle, including input signal reception and output signal transmission to solenoids. Key functions include determining line pressure, shift points, and lock-up operation, all based on signals from various sensors and the ECM.
Solenoid Valve Control Mechanisms
The manual details the control of shift solenoid valves A and B, line pressure solenoid valve, and torque converter clutch solenoid valve. It explains how these valves respond to TCM signals, influencing gear selection, line pressure regulation, and lock-up engagement for optimal vehicle performance.
Diagnostic Trouble Codes (DTCs) Explained
The product description covers the interpretation and diagnosis of various DTCs related to the automatic transaxle. It details procedures for identifying malfunctions using CONSULT-II or other diagnostic tools, referencing specific DTCs such as P0705, P0731, and P0734.
Control System Schematics and Operation
This section provides schematics of the control system, illustrating the interaction between sensors, TCM, and actuators. It includes detailed explanations of hydraulic control circuits and the function of various control valves, such as the manual valve and shuttle valve.
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