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STR_STARTING_SYSTEM(启动系统).pdf

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STR_STARTING_SYSTEM 启动 系统
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STR-1 ENGINE C D E F G H I J K L M SECTION STR A STR N O P CONTENTS STARTING SYSTEM PRECAUTION ........................................... .... 2 PRECAUTIONS .............................................. ..... 2 Precaution for Supplemental Restraint System (SRS) “AIR BAG“ and “SEAT BELT PRE-TEN- SIONER“ ............................................................. ......2 Precaution for Power Generation Variable Voltage Control System .................................................... ......2 PREPARATION ........................................ .... 3 PREPARATION .............................................. ..... 3 Special Service Tool ........................................... ......3 Commercial Service Tool .................................... ......3 BASIC INSPECTION ................................ .... 4 DIAGNOSIS AND REPAIR WORKFLOW ..... ..... 4 Work Flow ........................................................... ......4 FUNCTION DIAGNOSIS ........................... .... 7 STARTING SYSTEM ...................................... ..... 7 System Diagram .................................................. ......7 System Description ............................................. ......7 Component Parts Location .................................. ......7 Component Description ...................................... ......8 COMPONENT DIAGNOSIS ...................... .... 9 B TERMINAL CIRCUIT ...................................... 9 Description ........................................................... ..... 9 Diagnosis Procedure ........................................... ..... 9 S CONNECTOR CIRCUIT .................................10 Description ........................................................... ....10 Diagnosis Procedure ........................................... ....10 STARTING SYSTEM .........................................11 Wiring Diagram .................................................... ....11 SYMPTOM DIAGNOSIS ........................... ...16 STARTING SYSTEM .........................................16 Symptom Table ................................................... ....16 ON-VEHICLE REPAIR .............................. ...17 STARTER MOTOR ...........................................17 Removal and Installation ..................................... ....17 SERVICE DATA AND SPECIFICATIONS (SDS) ......................................................... ...19 STARTER MOTOR ...........................................19 Starter .................................................................. ....19STR-2PRECAUTIONS PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System (SRS) “AIR BAG“ and “SEAT BELT PRE-TENSIONER“ INFOID:0000000001281952 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 SR and SB section of this Service Man- ual. 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 SR section.  Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har- ness connectors. Precaution for Power Generation Variable Voltage Control System INFOID:0000000001303477 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 com- ponent is connected directly to the negative battery terminal, the current flowing through that compo- nent 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.PREPARATION STR-3C D E F G H I J K L M A STR N P O PREPARATION PREPARATION Special Service Tool INFOID:0000000001281953 Commercial Service Tool INFOID:0000000001281954 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. WKIA5280E SEL403X Tool name Description Power tool Loosening bolts and nuts PBIC0190ESTR-4DIAGNOSIS AND REPAIR WORKFLOW BASIC INSPECTION DIAGNOSIS AND REPAIR WORKFLOW Work Flow INFOID:0000000001714428 OVERALL SEQUENCE DETAILED FLOW ALBIA0417GBDIAGNOSIS AND REPAIR WORKFLOW STR-5C D E F G H I J K L M A STR N P O 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. 1.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 BAT- TERY”, 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 EM and EC sections. 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 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 STR-9, “Diagnosis Procedure“. Is “B” terminal circuit normal? 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) 9.9STR-6DIAGNOSIS AND REPAIR WORKFLOW YES >> GO TO 8 NO >> Repair as needed. 8.“S” CONNECTOR CIRCUIT INSPECTION Check “S” connector circuit. Refer to STR-10, “Diagnosis Procedure“. 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. NO >> Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to EM or TM sections. Once resolved, perform battery test again. Refer to Technical Service Bulletin. STARTING SYSTEM STR-7C D E F G H I J K L M A STR N P O FUNCTION DIAGNOSIS STARTING SYSTEM System Diagram INFOID:0000000001714429 System Description INFOID:0000000001714430 The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates. Component Parts Location INFOID:0000000001714431 ALBIA0416GB 1. A/T assembly F9 (with built in TCM F502) 2. IPDM E/R E119, E120, E122, E124 3. BCM M18 (view with instrument panel lower LH panel removed) AWBIA0127ZZSTR-8STARTING SYSTEM Component Description INFOID:0000000001714432 Component part Description TCM TCM supplies power to the starter relay inside the IPDM E/R when the selector lever is shifted to the P or N position. BCM BCM sends a starter request signal to the CPU of the IPDM E/R over the CAN communication lines. IPDM E/R CPU inside IPDM E/R operates the starter relay at the request of the BCM over the CAN communication lines. Starter motor The starter motor plunger closes and the motor is supplied with battery power, which in turn cranks the engine, when the “S” ter- minal is supplied with electric power.B TERMINAL CIRCUIT STR-9C D E F G H I J K L M A STR N P O COMPONENT DIAGNOSIS B TERMINAL CIRCUIT Description INFOID:0000000001714433 Terminal “2“ (B) is constantly supplied with battery power. Diagnosis Procedure INFOID:0000000001714434 CAUTION: Perform diagnosis under the condition that the engine cannot start by the following procedure. 1. Remove fuel pump fuse. 2. Crank or start the engine (where possible) until the fuel pressure is depleted. 1.CHECK TERMINAL 2 POWER SUPPLY VOLTAGE 1. Turn ignition switch OFF. 2. Make sure that starter motor connector E210 terminal 2 connection is clean and tight. 3. Check voltage between starter motor connector E210 terminal 2 and ground. Is there battery voltage present? YES >> GO TO 2 NO >> Check harness between battery and starter motor for open circuit. 2.CHECK BATTERY CABLE (VOLTAGE DROP TEST) 1. Shift the transmission into park or neutral. 2. Check voltage between battery positive terminal and starter motor connector E210 terminal 2 while cranking the engine. Is the voltage drop less than 0.2V? YES >> GO TO 3 NO >>Check harness between the battery and the starter motor for high resistance. 3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST) Check voltage between starter motor case and battery negative ter- minal while cranking the engine. Is the voltage drop less than 0.2V? YES >> Terminal 2 circuit is OK. Further inspection necessary. Refer to STR-4, “Work Flow“. NO >> Check the starter motor case to engine mounting for high resistance. (+) (-) Voltage Connector Terminal E210 2 Ground Battery voltage AWBIA0122GB (+) (-) Condition Voltage Connector Terminal E210 2 Battery (+) terminal While cranking the engine Less than 0.2V ALBIA0471GB (+) (-) Condition Voltage Starter motor case Battery (-) terminal While cranking the engine Less than 0.2V AWBIA0124GBSTR-10S CONNECTOR CIRCUIT S CONNECTOR CIRCUIT Description INFOID:0000000001714435 Terminal “1“ (S) is the power supply for the starter motor magnetic switch. Terminal 1 is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P or N position. Diagnosis Procedure INFOID:0000000001714436 CAUTION: Perform diagnosis under the condition that engine cannot start by the following procedure. 1. Remove fuel pump fuse. 2. Crank or start the engine (where possible) until the fuel pressure is released. 1.CHECK STARTER MOTOR MAGNETIC SWITCH CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect starter motor connector E207. 3. Shift transmission into park or neutral. 4. Check voltage between starter motor harness connector E207 terminal 1 and ground with the ignition in START. Is battery voltage present? YES >> Magnetic switch circuit is OK. Further inspection necessary. Refer to STR-4, “Work Flow“. NO >> GO TO 2 2.CHECK CONNECTOR 1. Turn ignition switch OFF. 2. Check the IPDM E/R harness connector E120 and starter motor harness connector E207 for damage, bent pins and loose connections. Is the inspection result normal? YES >> GO TO 3 NO >> Repair the terminal and connector. 3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT) 1. Disconnect IPDM E/R connector E120 and starter motor con- nector E207. 2. Check continuity between starter motor harness connector E207 (A) terminal 1 and IPDM E/R harness connector E120 (B) termi- nal 19. 3. Check continuity between starter motor harness connector E207 (A) terminal 1 and ground. Are the continuity test results as specified? YES >> Further inspection necessary. Refer to STR-4, “Work Flow“. NO >> Repair the harness. (+) (-) Condition Voltage Connector Terminal E207 1 Ground While cranking the engine Battery voltage AWBIA0125GB AB Continiuty Connector Terminal Connector Terminal E207 1 E120 19 Yes A — Continiuty Connector Terminal E207 1 Ground No AWBIA0126GBSTARTING SYSTEM STR-11C D E F G H I J K L M A STR N P O STARTING SYSTEM Wiring Diagram INFOID:0000000001714437 ALBWA0165GBSTR-12STARTING SYSTEM ALBIA0419GBSTARTING SYSTEM STR-13C D E F G H I J K L M A STR N P O ALBIA0420GBSTR-14STARTING SYSTEM ALBIA0421GBSTARTING SYSTEM STR-15C D E F G H I J K L M A STR N P O ALBIA0422GBSTR-16STARTING SYSTEM SYMPTOM DIAGNOSIS STARTING SYSTEM Symptom Table INFOID:0000000001714438 Symptom Reference No normal cranking Refer to STR-4, “Work Flow“. Starter motor does not rotateSTARTER MOTOR STR-17C D E F G H I J K L M A STR N P O ON-VEHICLE REPAIR STARTER MOTOR Removal and Installation INFOID:0000000001282715 VQ40DE MODELS Removal 1. Disconnect the negative battery terminal. 2. Remove engine undercover, using power tools. 3. Remove exhaust manifold cover from exhaust manifold (right bank) to gain access to starter cover bolts. Refer to EM-31, “Removal and Installation“. 4. Remove starter cover bolts and starter cover. 5. Disconnect terminal “1“ connector and terminal “2“ nut. 6. Remove the two starter bolts, using power tools. 7. Remove the starter. WKIA3190E 1. Starter cover 2. Starter motor assembly 3. Starter cover plate (rear) 4. Transmission housing WKIA3189ESTR-18STARTER MOTOR Installation Installation is in the reverse order of removal. CAUTION: Tighten terminal “2“ nut carefully. VK56DE MODELS Removal 1. Remove the intake manifold. Refer to EM-166, “Removal and Installation“. 2. Disconnect terminal “1“ connector and terminal “2“ nut. 3. Remove the two starter bolts, using power tools. 4. Remove the starter. Installation Installation is in the reverse order of removal.
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