PRECAUTIONS 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 AIR BAG RESTRAINT SYSTEMS and SEAT BELTS articles in RESTREAINTS.
| 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 section. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
SPECIAL SERVICE TOOLS
The actual shapes of Kent-Moore tools may from those of special service tools illustrated here.
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- Check if the reservoir tank engine coolant level within MIN to MAX When engine is cool.
- Adjust engine coolant if too much or too little.
Checking Cooling System For Leaks
| WARNING | Never remove the radiator or reservoir cap when the engine is hot. Serious burns could occur from high-pressure engine coolant escaping from the radiator or reservoir. |
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- To check for leakage, Using suitable tool apply pressure to the cooling system and reservoir cap. Testing pressure: 137 kPa (1.4 kg/cm, 20 psi) CAUTION: Higher pressure than specified may cause radiator damage. NOTE: In case that engine coolant decreases, replenish cooling system with engine coolant.
- If anything is found, repair or replace damaged parts.
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| WARNING | Never remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure engine coolant escaping from the radiator. |
CHECKING RADIATOR
Check radiator for mud or clogging. If necessary, clean radiator as follows.
| CAUTION | Be careful not to bend or damage the radiator fins. When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator shroud and horns. Then tape the harness and electrical connectors to prevent water from entering. |
- Apply water by hose to the back side of the radiator core vertically downward.
- Apply water again to all radiator core surface once per minute.
- Stop washing when stains no longer flow out from the radiator.
- Blow air into the back side of radiator core vertically downward. Use compressed air lower than 490 kPa (5 kg/cm 2 , 71 psi) and keep distance more than 30 cm (11.8 in).
- Blow air again into all the radiator core surfaces once per minute until no water sprays out.
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Fan Coupling
Inspect fan coupling for oil leakage and bimetal conditions.
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- Visually check that there is no significant looseness in the fan bracket shaft, and that it turns smoothly by hand.
- If there are any unusual concerns, replace the water pump assembly.