General Information and Safety Precautions
This manual provides critical information for the safe and effective servicing of Nissan and Infiniti vehicles. It covers a wide range of topics, from general precautions to specific system guidelines.
Key Areas Covered:
- Safety First: Detailed precautions for the Supplemental Restraint System (SRS) including airbags and seat belt pre-tensioners, emphasizing the risks of improper handling and the need for authorized service.
- Environmental and Health Protection: Guidelines for handling hazardous materials like fuel and engine oils, including proper disposal and personal protective measures to prevent skin contact and other health risks.
- System Specifics: Precautions related to the Three Way Catalyst, fuel systems (unleaded gasoline recommended), multiport fuel injection, and engine control systems.
- Maintenance Best Practices: Instructions on hose removal and installation, clamping, engine oil handling, and the importance of using specified fluids and tools.
Using This Manual Effectively
This manual is designed to assist technicians in performing diagnostics and repairs. It includes:
- Clear Terminology: Definitions of terms like WARNING, CAUTION, Standard Value, and Limit Value to ensure understanding.
- Unit Consistency: Primarily uses SI units, with metric and yard/pound systems provided as alternatives.
- Structured Content: Features an alphabetical index, quick reference index, and detailed contents for each section to facilitate easy navigation.
- Diagnostic Aids: Explains how to follow trouble diagnoses, interpret symbols, and utilize wiring diagrams for efficient troubleshooting.
Important Notes for Technicians:
- Always disconnect the negative battery terminal before starting repairs that do not require battery power.
- Be aware that disconnecting the battery may erase memory in the radio and control units.
- Avoid contact with hot engine parts and never remove the radiator cap when the engine is hot.
- Dispose of used oil and cleaning solvents responsibly.
- When working with electrical components, especially those with microcomputers, be mindful of static electricity.
Diagnostic Procedures and Wiring Information
The manual details systematic approaches to diagnosing vehicle issues, including:
- Trouble Diagnosis Workflows: Step-by-step procedures to identify and resolve problems effectively.
- Harness Wire Color and Connector Identification: Clear indications of wire colors and connector numbers within illustrations to aid in tracing circuits.
- Symbol Interpretation: A guide to symbols used in diagrams, representing actions like tightening torque, lubrication, and checking points.
For detailed electrical diagnostics, refer to specific sections on wiring diagrams and harness layouts. Always ensure ignition is off when checking circuit continuity and verify battery voltage before testing other circuits.
