Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS AIRBAG article and SEAT BELTS article.
| WARNING | To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS AIRBAG . Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this article. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
| WARNING | When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service. |
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
Note. This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYSTEM). Remove and install all control units after disconnecting both battery cables with the ignition knob in the "LOCK" position. Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before starting the repair operation.
Precaution for Power Generation Variable Voltage Control System
| CAUTION | For this model, the battery current sensor that is installed to the negative battery cable measures the charging/discharging current of the battery and performs various engine controls. If an electrical component is connected directly to the negative battery terminal, the current flowing through that component will not be measured by the battery current sensor. This condition may cause a malfunction of the engine control system and battery discharge may occur. Do not connect an electrical component or ground wire directly to the battery terminal. |
Special Service Tool
SPECIAL SERVICE TOOL SPECIFICATION Tool number (Kent-Moore No.) Tool name Description - (-) Model GR-8 Multitasking Battery Diagnostic Station Tests batteries, starting and charging systems. For operating instructions, refer to diagnostic station instruction manual
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Commercial Service Tool
COMMERCIAL SERVICE TOOL SPECIFICATION Tool name Description Power tool Loosening bolts and nuts
How to Handle Battery
| CAUTION | If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt booster battery After connecting battery cables, ensure that they are tightly clamped to battery terminals for good contact. Never add distilled water through the hole used to check specific gravity. |
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging a battery.
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- The battery surface (particularly its top) should always be kept clean and dry.
- The terminal connections should be clean and tight.
- At every routine maintenance, check the electrolyte level. This also applies to batteries designated as "low maintenance" and "maintenance-free".
- When the vehicle is not going to be used over a long period of time, disconnect the battery cable from the negative terminal. (If the vehicle has an extended storage switch, turn it off.)
- Check the charge condition of the battery. Periodically check the specific gravity of the electrolyte. Keep a close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVEL
| WARNING | Never allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touching a battery, never touch or rub your eyes until you have thoroughly washed your hands. If acid contacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention. |
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- Remove the cell plug using a suitable tool.
- Add distilled water up to the MAX level.
Sulphation
A battery will be completely discharged if it is left unattended for a long time and the specific gravity will become less than 1.100. This may result in sulphation on the cell plates.
To determine if a battery has been "sulphated", note its voltage and current when charging it. As shown in the figure, less current and higher voltage are observed in the initial stage of charging sulphated batteries.
A sulphated battery may sometimes be brought back into service by means of a long, slow charge, 12 hours or more, followed by a battery capacity test.
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- Read hydrometer and thermometer indications at eye level.
- Use the chart below to correct your hydrometer reading according to electrolyte temperature.
Hydrometer Temperature Correction
| Battery electrolyte temperature [°C (°F)] | Add to specific gravity reading |
|---|---|
| 71 (160) | 0.032 |
| 66 (150) | 0.028 |
| 60 (140) | 0.024 |
| 54 (130) | 0.020 |
| 49 (120) | 0.016 |
| 43 (110) | 0.012 |
| 38 (100) | 0.008 |
| 32 (90) | 0.004 |
| 27 (80) | 0 |
| 21 (70) | 0.004 |
| 16 (60) | 0.008 |
| 10 (50) | 0.012 |
| 4 (40) | 0.016 |
| 1 (30) | 0.020 |
| 7 (20) | 0.024 |
| 12 (10) | 0.028 |
| 18 (0) | 0.032 |
BATTERY ELECTROLYTE TEMPERATURE SPECIFICATION
| Corrected specific gravity | Approximate charge condition |
|---|---|
| 1.260 - 1.280 | Fully charged |
| 1.230 - 1.250 | 3/4 charged |
| 1.200 - 1.220 | 1/2 charged |
| 1.170 - 1.190 | 1/4 charged |
| 1.140 - 1.160 | Almost discharged |
| 1.110 - 1.130 | Completely discharged |
CORRECTED SPECIFIC GRAVITY
CHARGING THE BATTERY
| CAUTION | Never "quick charge" a fully discharged battery. Keep the battery away from open flame while it is being charged. When connecting the charger, connect the leads first, then turn on the charger. Never turn on the charger first, as this may cause a spark. If battery electrolyte temperature rises above 55 °C (131 °F), stop charging. Always charge battery at a temperature below 55 °C (131 °F). |
Charging Rates
| Amps | Time |
|---|---|
| 50 | 1 hour |
| 25 | 2 hours |
| 10 | 5 hours |
| 5 | 10 hours |
CHARGING RATES
Do not charge at more than 50 ampere rate.
Note. The ammeter reading on your battery charger will automatically decrease as the battery charges. This indicates that the voltage of the battery is increasing normally as the state of charge improves. The charging amps indicated above refer to initial charge rate.
- If, after charging, the specific gravity of any two cells varies more than 0.050, the battery should be replaced.
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Special Repair Requirement
Required Procedure After Battery Disconnection
| System | Item | Reference |
|---|---|---|
| Engine Control | Idle Air Volume Learning | Refer to " IDLE AIR VOLUME LEARNING ". |
| Brake Control System | Steering Angle Sensor Neutral Position | Refer to " ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : SPECIAL REPAIR REQUIREMENT ". |
| Door & Lock | Automatic Back Door Initialization | Refer to DOOR & LOCK (WITH INTELLIGENT KEY SYSTEM) , DOOR & LOCK (WITHOUT INTELLIGENT KEY SYSTEM) |
| Roof | Sunroof Memory Reset/Initialization | Refer to ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT |
| Automatic Drive Positioner | Automatic Drive Positioner System Initialization | Refer to Owner's Manual. |
| Audio, Visual and Navigation System | Audio (Radio Preset) | Refer to Owner's Manual. |
| Navigation System | Refer to Owner's Manual. |
INSPECTION CHART
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- If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
- Use fuse of specified rating. Never use fuse of more than specified rating.
- Do not partially install fuse; always insert it into fuse holder properly.
- Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not used for a long period of time.
Fusible Link
A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is questionable, use circuit tester or test lamp.
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| CAUTION | If fusible link should melt, it is possible that critical circuit (power supply or large current carrying circuit) is shorted. In such a case, carefully check and eliminate cause of malfunction. Never wrap outside of fusible link with vinyl tape. Important: Never let fusible link touch any other wiring harness, vinyl or rubber parts. |
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NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
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TYPE OF STANDARDIZED RELAYS
| 1M .................... 1 Make | 2M .................... 2 Make |
|---|---|
| 1T .................... 1 Transfer | 1M.1B .................... 1 Make 1 Break |
STANDARDIZED RELAYS SPECIFICATION
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Note. Numbers preceded by an "F" represent the fuse numbers imprinted on the IPDM E/R. The other numbers represent the fuse numbers as they appear in the wiring diagrams.
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- Disconnect the negative battery terminal (1) and positive battery terminal (2). CAUTION: Remove negative battery terminal first.
- Remove the battery cover.
- Remove the battery clamp bolt (3) and battery clamp.
- Remove the battery.
Battery
| Application | United States SV (Non FFV) and Mexico | United States SV (FFV) LE and Canada |
|---|---|---|
| Type | Gr. 24F | Gr. 27F |
| Capacity (20 HR) minimum V-AH | 12 - 70 | 12 - 80 |
| Cold cranking current A (For reference value) | 650 | 710 |
BATTERY SPECIFICATION