Nissan Quest E52. Instruction — part 1190
STR-10
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
OVERALL SEQUENCE
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.
1.
DIAGNOSIS WITH MULTITASKING BATTERY AND ELECTRICAL DIAGNOSTIC STATION GR8-1200 NI
JMBIA4453GB
DIAGNOSIS AND REPAIR WORK FLOW
STR-11
< BASIC INSPECTION >
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Perform the starting system test with Multitasking battery and electrical diagnostic station GR8-1200 NI. For
details and operating instructions, refer to diagnostic station Instruction Instruction.
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 instruction.
REPLACE BATTERY>>Before replacing battery, clean the battery cable clamps and battery posts. Perform
battery test again. Refer to diagnostic station instruction instruction. 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 correctly.
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 EM and EC sec-
tions. 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 the cranking voltage with the specifications.
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 status.
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
.
Is “B” terminal circuit normal?
YES
>> GO TO 8.
NO
>> Repair as needed.
8.
“S” CONNECTOR CIRCUIT INSPECTION
Check “S” connector circuit. Refer to
.
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
STR-12
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
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
STR-18, "Removal and Installation"
NO
>> Perform further diagnosis of engine mechanical or powertrain mechanism. Once resolved, per-
form battery test again using Multitasking battery and electrical diagnostic station GR8-1200 NI.
Refer to the diagnostic station Instruction Instruction for proper testing procedures.
Work Flow (Without GR8-1200 NI)
INFOID:0000000009650604
OVERALL SEQUENCE
DETAILED FLOW
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.
JMBIA4454GB
DIAGNOSIS AND REPAIR WORK FLOW
STR-13
< BASIC INSPECTION >
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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
STR-18, "Removal and Installation"
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
5.
CHECK STARTER MOTOR ACTIVATION
Check that the starter motor runs at cranking.
Does starter motor turn?
YES
>> Replace starter motor. Refer to
STR-18, "Removal and Installation"
NO
>> GO TO 6.
6.
CHECK POWER SUPPLY CIRCUIT
Check the following conditions.
• Fuse and fusible link
• Charge condition, corrosion and connection condition of the battery. Refer to
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
.
• “S” connector circuit. Refer to
.
Are these inspection results normal?
YES
>> Replace starter motor. Refer to
STR-18, "Removal and Installation"
NO
>> Repair as needed.
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