Nissan Sentra. Manual — part 840
STR-28
< DTC/CIRCUIT DIAGNOSIS >
S CONNECTOR CIRCUIT
S CONNECTOR CIRCUIT
Description
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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 (Park) or N (Neutral) position (CVT Models) or the clutch pedal is
depressed (M/T Models).
Diagnosis Procedure
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Regarding Wiring Diagram information, refer to
(with Intellignet Key system) or
(without Intelligent Key system).
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 “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Shift selector lever to “P” (Park) or “N” (Neutral) position (CVT Models) or the clutch pedal is depressed
(M/T Models).
4. Check voltage between starter motor harness connector F28 and ground.
Is the inspection result normal?
YES
>> “S” circuit is OK. Further inspection is necessary. Refer to
STR-20, "Work Flow (With GR8-1200
STR-24, "Work Flow (Without GR8-1200 NI)"
.
NO
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect IPDM E/R connector.
2. Check continuity between starter motor harness connector F28 and the IPDM E/R harness connector
E44.
Is the inspection result normal?
YES
>> Further inspection is necessary. Refer to
STR-20, "Work Flow (With GR8-1200 NI)"
"Work Flow (Without GR8-1200 NI)"
.
NO
>> Repair or replace the harness or connectors.
(+)
(-)
Condition
Voltage
(Approx.)
Connector Terminal
F28
ST
Ground
When the ignition switch is in START position
Battery voltage
Starter motor harness connector
IPDM E/R harness connector
Continuity
Connector
Terminal
Connector
Terminal
F28
ST
E44
19
Yes
STARTING SYSTEM
STR-29
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
SYMPTOM DIAGNOSIS
STARTING SYSTEM
Symptom Table
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Symptom
Reference
No normal cranking
STR-20, "Work Flow (With GR8-1200 NI)"
"Work Flow (Without GR8-1200 NI)"
Starter motor does not rotate
STR-30
< REMOVAL AND INSTALLATION >
STARTER MOTOR
REMOVAL AND INSTALLATION
STARTER MOTOR
Exploded View
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Removal and Installation
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NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Disconnect the battery negative terminal. Refer to
PG-50, "Removal and Installation (Battery)"
2. Remove fan shroud and motor assembly. Refer to
3. Remove reservoir hose upper from radiator to water outlet. Refer to
4. Remove “B” terminal nut and “B” terminal harness.
5. Remove “S” terminal nut and “S” terminal harness.
6. Disconnect harness connector from oil temperature sensor. Refer to
.
7. Disconnect harness connector (1) from crankshaft position sen-
sor.
8. Remove harness clip (A) from oil pan (upper), and then remove
harness (2) and set aside.
9. Remove upper starter motor bolt.
10. Remove lower starter motor bolt and remove starter motor.
INSTALLATION
1.
“S” terminal harness
2.
“B” terminal harness
3.
Starter motor
4.
Cylinder block
Front
PKIC8095E
JMBIA3021ZZ
STARTER MOTOR
STR-31
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
• Installation is in the reverse order of removal.
• Refill engine coolant. Refer to
CO-12, "Changing Engine Coolant"
.
CAUTION:
• Be careful to tighten "B" terminal nut to the specified torque.
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