Nissan Xterra. Instruction — part 617
STR-14
< DTC/CIRCUIT DIAGNOSIS >
B TERMINAL CIRCUIT
DTC/CIRCUIT DIAGNOSIS
B TERMINAL CIRCUIT
Description
INFOID:0000000009485116
Terminal "2" (B) is constantly supplied with battery power.
Diagnosis Procedure
INFOID:0000000009485117
Regarding Wiring Diagram information, refer to
STR-18, "Wiring Diagram - With Clutch Interlock Cancel Sys-
STR-24, "Wiring Diagram - Without Clutch Interlock Cancel System"
CAUTION:
Before testing, perform the following procedure to ensure the engine cannot start.
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. Depress clutch pedal if the vehicle is equipped with M/T.
3. 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)
(+)
(-)
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
AWBIA0123GB
B TERMINAL CIRCUIT
STR-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
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 is necessary.
Refer to
STR-3, "Work Flow (With GR8-1200 NI)"
STR-7, "Work Flow (Without GR8-1200 NI)"
.
NO
>> Check the starter motor case to engine mounting for
high resistance.
(+)
(-)
Condition
Voltage
Starter motor
case
Battery (-) terminal
While cranking the
engine
Less than 0.2V
AWBIA0124GB
STR-16
< DTC/CIRCUIT DIAGNOSIS >
S CONNECTOR CIRCUIT
S CONNECTOR CIRCUIT
Description
INFOID:0000000009485118
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 or
clutch pedal is depressed.
Diagnosis Procedure
INFOID:0000000009485119
Regarding Wiring Diagram information, refer to
STR-18, "Wiring Diagram - With Clutch Interlock Cancel Sys-
STR-24, "Wiring Diagram - Without Clutch Interlock Cancel System"
CAUTION:
Before testing, perform the following procedure to ensure the engine cannot start.
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. Depress clutch pedal if the vehicle is equipped with M/T.
5. 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 is necessary. Refer to
STR-7, "Work Flow (Without GR8-1200 NI)"
.
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.
2. Check continuity between starter motor harness connector E207 (A) terminal 1 and IPDM E/R harness
connector E120 (B) terminal 19.
3. Check continuity between starter motor harness connector E207 (A) terminal 1 and ground.
(+)
(-)
Condition
Voltage
Connector
Terminal
E207
1
Ground
While cranking the
engine
Battery voltage
AWBIA0343ZZ
Starter motor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E207 (A)
1
E120 (B)
19
Yes
S CONNECTOR CIRCUIT
STR-17
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
A
STR
N
P
O
Are the continuity test results as specified?
YES
>> Further inspection is necessary. Refer to
STR-3, "Work Flow (With GR8-1200 NI)"
"Work Flow (Without GR8-1200 NI)"
.
NO
>> Repair the harness.
Starter motor
—
Continuity
Connector
Terminal
E207 (A)
1
Ground
No
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