Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G37 2008 Coupe Approved Infiniti G37 Coupe 2008 str
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>> Download str documenatation <<Text preview - extract from the documentENGINE
A
SECTION
STARTING SYSTEM
STR STR
C
D
E
CONTENTS
BASIC INSPECTION ................................... 2
. PRECAUTION ............................................. 13
. F
DIAGNOSIS AND REPAIR WORKFLOW ......... 2
. PRECAUTIONS ................................................. 13
Work Flow ................................................................ 2
. Precaution for Supplemental Restraint System G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
FUNCTION DIAGNOSIS .............................. 5
. SIONER" ................................................................13
.
Precaution for Battery Service ................................13 .
STARTING SYSTEM .......................................... 5
. H
System Diagram ....................................................... 5
. PREPARATION .......................................... 14
.
System Description .................................................. 5
.
Component Parts Location ....................................... 6
. PREPARATION ................................................. 14 I
Component Description ........................................... 6
. Special Service Tools .............................................14
.
Commercial Service Tools ......................................14
.
COMPONENT DIAGNOSIS ......................... 7
.
ON-VEHICLE REPAIR ................................ 15
. J
B TERMINAL CIRCUIT ...................................... 7
.
Description ............................................................... 7
. STARTER MOTOR ........................................... 15
Diagnosis Procedure ................................................ 7
. Exploded View ........................................................15
. K
Removal and Installation ........................................16 .
S CONNECTOR CIRCUIT .................................. 8
. Inspection ...............................................................17
.
Description ............................................................... 8
.
Diagnosis Procedure ................................................ 8
. SERVICE DATA AND SPECIFICATIONS L
(SDS) ........................................................... 18
.
STARTING SYSTEM .......................................... 9
.
Wiring Diagram - STARTING SYSTEM - ................. 9
. SERVICE DATA AND SPECIFICATIONS M
(SDS) ................................................................. 18
SYMPTOM DIAGNOSIS ............................. 12
.
Starter Motor ..........................................................18
.
STARTING SYSTEM .........................................12
. N
Symptom Table ...................................................... 12
.
O
P
Revision: 2007 June STR-1 G37 Coupe
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000001665976
OVERALL SEQUENCE
JSBIA0001GB
DETAILED FLOW
Revision: 2007 June STR-2 G37 Coupe
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter motor and alternator test segments must be A
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 (SST: J-44373). For details and operat- STR
ing instructions, refer to Technical Service Bulletin.
Test result
C
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. D
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. E
2. CRANKING CHECK
Check that the starter motor operates correctly.
Does the engine crank normally? F
YES >> GO TO 3.
NO >> GO TO 4.
G
3.ENGINE START CHECK
Check that the engine starts.
Does the engine start? H
YES >> Starter motor is OK. INSPECTION END
NO >> Perform further diagnosis of engine mechanical or engine control system. Refer EM and EC sec-
tions. Once resolved, perform battery test again. I
4.STARTER MOTOR ACTIVATION
Check that the starter motor operates.
J
Does the starter motor turn?
YES >> Check ring gear and starter motor drive pinion. Once resolved, perform battery test again.
NO >> GO TO 7.
K
5.COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE
Compare the engine coolant temperature and the cranking voltage with the specifications.
Minimum Specification of Cranking Voltage Referencing Coolant Temperature
L
Engine coolant temperature [
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