Nissan March K13. Instruction — part 643
DIAGNOSIS AND REPAIR WORK FLOW
STR-13
< BASIC INSPECTION >
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STR
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9.
CHECK MAGNETIC SWITCH OPERATION SOUND
Check that a magnetic switch operation sound can be heard when the ignition switch is set at the starting posi-
tion.
Does magnetic switch operation sound occur?
YES
>> GO TO 10.
NO
>> Replace magnetic switch.
10.
PINION AND RING GEAR ENGAGEMENT CHECK
Check condition of pinion and ring gear mesh.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
11.
CHECK STARTER MOTOR UNIT
Check the following.
• Adjust pinion movement. Refer to
STR-19, "Inspection and Adjustment"
.
• Check pinion moving mechanism.
• Check ring gear.
Are these inspection results normal?
YES
>> INSPECTION END
NO
>> Repair or replace, if necessary.
12.
CHECK STARTER MOTOR UNIT
Check that the starter motor runs when connecting the positive ter-
minal (12 V) to starter motor terminal M and the negative terminal
(ground) to starter motor body.
Does the starter motor run?
YES
>> Replace magnetic switch.
NO
>> Repair starter motor.
SEL009Z
STR-14
< DTC/CIRCUIT DIAGNOSIS >
B TERMINAL CIRCUIT
DTC/CIRCUIT DIAGNOSIS
B TERMINAL CIRCUIT
Description
INFOID:0000000006057523
The “B” terminal is constantly supplied with battery power.
Diagnosis Procedure
INFOID:0000000006057524
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 “B” TERMINAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Check that starter motor “B” terminal connection is clean and tight.
3.
Check voltage between starter motor “B” terminal and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check harness between battery and starter motor for open circuit.
2.
CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)
1.
Shift selector lever to “P” or “N” position. (A/T models)
2.
Check voltage between battery positive terminal and starter motor “B” terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between the battery and the starter motor for poor continuity.
3.
CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1.
Shift selector lever to “P” or “N” position. (A/T models)
2.
Check voltage between starter motor case and battery negative terminal.
Is the inspection result normal?
YES
>> “B” terminal circuit is OK. Further inspection is necessary. Refer to
.
NO
>> Check the starter motor case and ground for poor continuity.
Terminals
Voltage (Approx.)
(+)
(–)
Starter motor “B” terminal
Terminal
F11
2 Ground
Battery
voltage
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor
“B” terminal
Terminal
Battery positive terminal
F11
2
When the ignition switch is
in START position
Less than
0.5 V
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor case
Battery negative terminal
When the ignition switch is in
START position
Less than 0.2 V
S TERMINAL CIRCUIT
STR-15
< DTC/CIRCUIT DIAGNOSIS >
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S TERMINAL CIRCUIT
Description
INFOID:0000000006057525
The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START posi-
tion while the selector lever is in the P or N position for A/T models.
Diagnosis Procedure
INFOID:0000000006057526
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.
INSPECTION START
Check which type of transmission the vehicle is equipped with.
Which type of transmission?
A/T
>> GO TO 2.
M/T
>> GO TO 4.
2.
CHECK “S” TERMINAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect starter motor connector.
3.
Shift selector lever to “P” or “N” position.
4.
Check voltage between starter motor harness connector and ground.
Is the inspection result normal?
YES
>> “S” terminal circuit is OK. Further inspection is necessary. Refer to
NO
>> GO TO 3.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect IPDM E/R connector.
2.
Check continuity between starter motor harness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES
>> Further inspection is necessary. Refer to
NO
>> Repair the harness.
4.
CHECK “S” TERMINAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect starter motor connector.
3.
Check voltage between starter motor harness connector and ground.
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor har-
ness connector
Terminal
F10
1 Ground
When the ignition switch is in
START position
Battery voltage
Starter motor harness connector
IPDM E/R harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
F10
1
E10
30
Existed
STR-16
< DTC/CIRCUIT DIAGNOSIS >
S TERMINAL CIRCUIT
Is the inspection result normal?
YES
>> “S” terminal circuit is OK. Further inspection is necessary. Refer to
.
NO
>> GO TO 5.
5.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect ignition switch connector.
2.
Check continuity between starter motor harness connector and ignition switch harness connector.
Is the inspection result normal?
YES
>> Further inspection is necessary. Refer to
NO
>> Repair the harness.
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor har-
ness connector
Terminal
F10
1 Ground
When the ignition switch is in
START position
Battery voltage
Starter motor harness connector
Ignition switch harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
F10
1
M29
5
Existed
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