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 and SEAT BELTS articles of this Service Information.
| 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 Service Information. 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. |
Scheme 8
- After removing the bolts and nuts, separate the mating surface and remove the old liquid gasket using Tool. Tool number: KV10111100 (J-37228) CAUTION: Do not damage the mating surfaces.
- Tap the seal cutter to insert it (1).
- In areas where the Tool is difficult to use, lightly tap to slide it (2).
Scheme 9
- Remove the old liquid gasket from the gasket application surface and the mating surface using suitable tool. Remove the liquid gasket completely from the groove of the liquid gasket application surface, bolts, and bolt holes.
- Thoroughly clean the mating surfaces and remove moisture, grease and foreign material.
- Attach the liquid gasket tube to the Tool. Tool number: WS39930000 (-) Use Genuine RTV Silicone Sealant or equivalent. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-605927-S20340231952014032500000) ".
- Apply the liquid gasket without breaks to the specified location with the specified dimensions.
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- If there is a groove for the liquid gasket application, apply the liquid gasket to the groove.
- Normally apply the liquid gasket on the inside edge of the bolt holes. Also apply to the outside edge of the bolt holes when specified in the procedure.
- Within five minutes of liquid gasket application, install the mating component.
- If the liquid gasket protrudes, wipe it off immediately.
- Do not retighten after the installation.
- Wait 30 minutes or more after installation before refilling the engine with oil or coolant. CAUTION: Carefully follow all of the warnings, cautions, notes, and procedures contained in this information.
Special Service Tool
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number (Kent-Moore No.) Tool name Description ST25051001 (J-25695-1) Oil pressure gauge Measuring oil pressure Maximum measuring range: 2, 452 kPa (25 kg/cm 2 , 356 psi) ST25052000 (J-25695-2) Hose Adapting oil pressure gauge to cylinder block KV10115801 (J-38956) Oil filter wrench Removing oil filter 64.3 mm (2.531 in)
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Commercial Service Tools
Tool name Description Deep socket Removing and installing oil pressure sensor 27 mm (1.06 in) Power tool Loosening nuts, screws and bolts Tube presser Pressing the tube of liquid gasket
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- Park vehicle on a level surface, wait 10 minutes before checking the engine oil level.
- Pull out oil level gauge and wipe it clean.
- Insert oil level gauge and make sure the engine oil level is within the range (A) as shown below.
- If it is out of range, adjust it.
ENGINE OIL APPEARANCE
- Check engine oil for white milky appearance or excessive contamination.
- If engine oil becomes white, it is highly probable that it is contaminated with engine coolant. Repair or replace damaged parts.
ENGINE OIL LEAKS
Check for engine oil leakage around the following areas
- Oil pan (upper and lower)
- Oil pan drain plug
- Oil pressure sensor
- Oil filter
- Oil cooler
- Oil level sensor
- Engine oil temperature sensor
- Intake valve timing control solenoid valve
- Exhaust valve timing control solenoid valve
- Mating surface between front cover and rocker cover
- Mating surface between cylinder block and cylinder head
- Mating surface between cylinder head and rocker cover
- Crankshaft oil seals (front and rear)
- Front cover
OIL PRESSURE CHECK
| WARNING | Be careful not to get burned, as engine oil may be hot. For engine oil pressure check, the transaxle should be in P (Park) (A/T and CVT models) or N (Neutral) (M/T models), and apply the parking brake securely. |
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- Check engine oil level.
- Disconnect harness connector at oil pressure sensor (2), and remove oil pressure sensor (2) from the cylinder block (1) using suitable tool. CAUTION: Do not drop or shock oil pressure switch.
- Install oil pressure gauge and hose. Tool number: ST25051001 (J-25695-1): ST25052000 (J-25695-2)
- Start engine and warm it up to normal operating temperature.
- Check oil pressure with engine running under no-load. If difference between the specification and the tested pressure is extreme, check oil passage and oil pump for oil leaks. NOTE: When engine oil temperature is low, engine oil pressure becomes high.
- After the inspections, install oil pressure switch as follows: Remove old liquid gasket from the oil pressure switch and engine. Apply liquid gasket and tighten oil pressure sensor to specification. Use Genuine Silicone RTV Sealant or equivalent. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-605927-S20340231952014032500000) ". Oil pressure sensor torque: Refer to " «EXPLODED VIEW»(ref-605933-S34097784992014032500000) ". Check engine oil level. After warming up engine, make sure there are no engine oil leaks.
Oil Cooler
Check oil cooler for cracks. Check oil cooler for clogging by blowing compressed air through engine coolant inlet. If necessary, replace oil cooler assembly.
Relief Valve
Inspect relief valve for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove the valve by prying it out using a suitable tool. Install a new valve by tapping it in place.
Engine Oil Pressure
| Unit: kPa (kg/cm 2 , psi) | |||
|---|---|---|---|
| Engine Speed | Approximate discharge pressure (1) | ||
| M/T | A/T | CVT | |
| 600 RPM | More than 98 (1.0, 14.2) | ||
| 2, 000 RPM | More than 294 (3.0, 42.6) | ||
| 6, 000 RPM | More than 392 (4.0, 56.8) | ||
| (1) Engine oil temperature at 80°C (176°F). | |||
| (1) | Engine oil temperature at 80°C (176°F). |