Starting System: Other Nissan Pathfinder III рестайлинг

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.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

Precaution for Power Generation Variable Voltage Control System

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 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 Work

1. When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
2. When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
3. Protect the removed parts with a shop cloth and prevent them from being dropped.
4. Replace a deformed or damaged clip.
5. If a part is specified as a non-reusable part, always replace it with new one.
6. Be sure to tighten bolts and nuts securely to the specified torque.
7. After installation is complete, be sure to check that each part works properly.
8. Follow the steps below to clean components.

1. Water soluble dirt: Dip a soft cloth into lukewarm water, and wring the water out of the cloth to wipe the dirty area. Then rub with a soft and dry cloth.
2. Oily dirt: Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%), and wipe the dirty area. Then dip a cloth into fresh water, and wring the water out of the cloth to wipe the detergent off. Then rub with a soft and dry cloth.

1. Do not use organic solvent such as thinner, benzene, alcohol, or gasoline.
2. For genuine leather seats, use a genuine leather seat cleaner.

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 - (-) Model GR8-1200 NI Multitasking battery and electrical diagnostic station Tests batteries, starting and charging systems and charges batteries. For operating instructions, refer to diagnostic station instruction manual

Scheme 16

Commercial Service Tool

Tool name Description Power tool Loosening bolts, screws and nuts

To test the starting system, use the following special service tool

GR8-1200 NI Multitasking battery and electrical diagnostic station

Note. Refer to the diagnostic station Instruction Manual for proper starting system diagnosis procedures

Scheme 17

DETAILED FLOW

Note. To ensure a complete and thorough diagnosis, the battery, starter motor and generator test segments must be done as a set from start to finish.

1. DIAGNOSIS WITH MULTITASKING BATTERY DIAGNOSTIC STATION Perform the starting system test with multitasking battery diagnostic station. For details and operating instructions, refer to diagnostic station instruction manual. Test result CRANKING NORMAL >> GO TO 2 LOW VOLTAGE >> 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 diagnostic station instruction manual. REPLACE BATTERY >> Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again. Refer to diagnostic station instruction manual. If second test result is "REPLACE BATTERY", then do so. Perform battery test again to confirm repair.
2. CRANKING CHECK Check that the starter motor operates properly. Does the engine crank normally? YES: GO TO 3 NO: GO TO 4
3. 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 - VQ40DE»(ref-519775) or «ENGINE MECHANICAL - VK56DE»(ref-519778) and «ENGINE CONTROL SYSTEM - VQ40DE»(ref-519777) or «ENGINE CONTROL SYSTEM - VK56DE»(ref-519792) . Once resolved, perform battery test again.
4. 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
5. COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE Compare the engine coolant temperature and verify the cranking voltage is within 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
6. STARTER OPERATION Check the starter operation. Does the starter motor turn smoothly? YES: Starter motor is OK. Inspection end. NO: GO TO 7
7. "B" TERMINAL CIRCUIT INSPECTION Check "B" terminal circuit. Refer to " «DIAGNOSIS PROCEDURE - VQ40DE»(ref-519795-S19684632422012122900000) " (VQ40DE) or " «DIAGNOSIS PROCEDURE - VK56DE»(ref-519795-S13441400632012122900000) " (VK56DE). Is "B" terminal circuit normal? YES: GO TO 8 NO: Repair as needed.
8. "S" CONNECTOR CIRCUIT INSPECTION Check "S" connector circuit. Refer to " «DIAGNOSIS PROCEDURE - VQ40DE»(ref-519795-S19620965502012122900000) " (VQ40DE) or " «DIAGNOSIS PROCEDURE - VK56DE»(ref-519795-S09772205342012122900000) " (VK56DE). Is "S" connector circuit normal? YES: GO TO 9 NO: Repair as needed.
9. 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-519795-S01717417562012122900000) ". NO: Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to «ENGINE MECHANICAL - VQ40DE»(ref-519775) or «ENGINE MECHANICAL - VK56DE»(ref-519778) or «TRANSAXLE & TRANSMISSION»(ref-519782) . Once resolved, perform battery test again. Refer to diagnostic station instruction manual.

Scheme 18

Note. If any malfunction is found, immediately disconnect the battery cable from the negative terminal.

1. CHECK ENGINE START Crank the engine and check that the engine starts. Does the engine start? YES >> GO TO 2. NO >> GO TO 3.
2. CHECK THAT THE STARTER MOTOR STOPS Check that the starter motor stops after starting the engine. Does the starter motor stop? YES >> Inspection End. NO >> Replace starter motor. Refer to «REMOVAL AND INSTALLATION»(ref-519795-S01717417562012122900000)
3. CHECK THAT THE ENGINE TURNS WHEN CRANKING Check that the engine turns when cranking. Does engine turn when cranking? YES >> GO TO 4. NO >> GO TO 5.
4. CHECK THE ENGINE SPEED WHEN CRANKING Check that the engine speed is not low when cranking. Does engine turn normally? YES >> Check ignition/fuel system. NO >> Check charge condition, corrosion and connection condition of the battery. Refer to «HOW TO HANDLE BATTERY»(ref-553889-S06958645672013051800000)
5. CHECK STARTER MOTOR ACTIVATION Check that the starter motor runs at cranking. Does starter motor turn? YES >> Replace starter motor. Refer to «REMOVAL AND INSTALLATION»(ref-519795-S01717417562012122900000) NO >> GO TO 6.
6. CHECK POWER SUPPLY CIRCUIT Check the following conditions: Fuse and fusible link Charge condition, corrosion and connection of the battery. Are these inspection results normal? YES >> GO TO 7. NO >> Repair as needed.
7. CHECK STARTING SYSTEM WIRING Check the following: "B" terminal circuit. Refer to «Diagnosis Procedure - VQ40DE»(ref-519795-S19684632422012122900000) or «Diagnosis Procedure - VK56DE»(ref-519795-S13441400632012122900000) "S" terminal circuit. Refer to «Diagnosis Procedure - VQ40DE»(ref-519795-S19620965502012122900000) or «Diagnosis Procedure - VK56DE»(ref-519795-S09772205342012122900000) Are the inspection results normal? YES >> Replace starter motor. Refer to «REMOVAL AND INSTALLATION»(ref-519795-S01717417562012122900000) . NO >> Repair as needed.

Scheme 19

VQ40DE MODELS

Removal

Scheme 20

1. Disconnect the negative battery terminal.
2. Remove starter cover bolts and starter cover.
3. Disconnect terminal "S" connector and terminal "B" nut.
4. Remove the two starter bolts, using power tools.
5. Remove the starter.

Installation

Installation is in the reverse order of removal.

Scheme 21

VK56DE MODELS

Removal

1. Remove the intake manifold. Refer to " «REMOVAL AND INSTALLATION»(ref-519778-S01170688892012122900000) ".
2. Disconnect terminal "S" connector and terminal "B" nut.
3. Remove the two starter bolts, using power tools.
4. Remove the starter.

Installation

Installation is in the reverse order of removal.

Starter