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.
| 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 the article. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
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
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
SPECIAL SERVICE TOOL SPECIFICATION Tool number (Kent-Moore No.) Tool name Description (-) (J-48087) Battery Service Center Tests battery. For operating instructions, refer to Technical Service Bulletin and Battery Service Center User Guide. (-) (J-44373) Model 620 Starting/Charging system tester Tests starting and charging systems. For operating instructions, refer to Technical Service Bulletin
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Commercial Service Tool
COMMERCIAL SERVICE TOOL SPECIFICATION Tool name Description Power tool Loosening bolts and nuts
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DETAILED FLOW
Note. To ensure a complete and thorough diagnosis, the battery, starter motor and alternator test segments must be done as a set from start to finish.
- DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER Perform the starting system test with Starting/Charging System Tester (J-44373). For details and operating instructions, refer to Technical Service Bulletin. Test result CRANKING VOLTAGE NORMAL: GO TO 2. CRANKING VOLTAGE LOW: GO TO 5 . CHARGE BATTERY: Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Perform battery test again. Refer to Technical Service Bulletin. REPLACE BATTERY: Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again. Refer to Technical Service Bulletin. If second test result is "REPLACE BATTERY", then do so. Perform battery test again to confirm repair.
- CRANKING CHECK Check that the starter motor operates properly. Does the engine crank normally? YES: GO TO 3. NO: GO TO 4 .
- ENGINE START CHECK Check that the engine starts. Does the engine start? YES: Starter motor is OK. Inspection end. NO: Perform further diagnosis of engine mechanical or engine control system. Refer to «ENGINE MECHANICAL»(ref-320185) and «ENGINE CONTROL SYSTEM»(ref-320188) articles. Once resolved, perform battery test again.
- STARTER MOTOR ACTIVATION Check that the starter motor operates. Does the starter motor turn? YES: Check ring gear and starter motor drive pinion. Once resolved, perform battery test again. NO: GO TO 7 .
- COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE Compare the engine coolant temperature and verify the cranking voltage is within specification. ENGINE COOLANT TEMPERATURE SPECIFICATION Minimum Specification of Cranking Voltage Referencing Coolant Temperature Engine coolant temperature [°C (°F)] Voltage [V] -30 to -20 (-22 to -4) 8.6 -19 to -10 (-2 to 14) 9.1 -9 to 0 (16 to 32) 9.5 More than 1 (More than 34) 9.9 Is the voltage less than the specified value? YES: GO TO 7 . NO: GO TO 6.
- STARTER OPERATION Check the starter operation. Does the starter motor turn smoothly? YES: Starter motor is OK. Inspection End. NO: GO TO 7.
- "B" TERMINAL CIRCUIT INSPECTION Check "B" terminal circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-320199-S15102934232009071300000) ". Is "B" terminal circuit normal? YES: GO TO 8. NO: Repair as needed.
- "S" CONNECTOR CIRCUIT INSPECTION Check "S" connector circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-320199-S36792101412009071300000) ". Is "S" connector circuit normal? YES: GO TO 9. NO: Repair as needed.
- ENGINE ROTATION STATUS Check that the engine can be rotated by hand. Does the engine turn freely by hand? YES: Replace starter motor. Refer to " «REMOVAL AND INSTALLATION»(ref-320199-S07825755732009071300000) ". NO: Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to «ENGINE MECHANICAL»(ref-320185) or «AUTOMATIC TRANSMISSION (RE5R05A)»(ref-320192) articles. Once resolved, perform battery test again. Refer to Technical Service Bulletin.
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Starter
| Application | All models | |
|---|---|---|
| Manufacturer | Mitsubishi | |
| Model number | M002T85571ZCKD | |
| Type | Reduction gear type | |
| System voltage | 12 V | |
| No-load | Terminal voltage | 11 V |
| Current | Less than 145A | |
| Revolution | More than 3,300 RPM | |
| Minimum diameter of commutator | 31.4 mm (1.236 in) | |
| Minimum length of brush | 11.0 mm (0.433 in) | |
| Brush spring tension | 26.7-36.1 N (2.72 - 3.68 kg, 5.93 - 8.02 lb) | |
| Clearance between pinion front edge and pinion stopper | 0.5 - 2.0 mm (0.020 - 0.079 in) | |
STARTER MOTOR SPECIFICATION