Nissan Leaf. Manual — part 1145
C1601 BATTERY POWER SUPPLY
STC-25
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
H
I
J
K
L
M
A
B
STC
N
O
P
NO
>> Repair or replace the malfunctioning parts.
6.
CHECK TERMINALS AND HARNESS CONNECTORS
Check the EPS control unit pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> EPS control unit is malfunctioning. Replace steering column assembly. Refer to
.
NO
>> Repair or replace the malfunctioning parts.
STC-26
< DTC/CIRCUIT DIAGNOSIS >
C1604 TORQUE SENSOR
C1604 TORQUE SENSOR
DTC Logic
INFOID:0000000010119197
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the power switch OFF to ON.
2. Perform “Self-Diagnostic Result” of “EPS” control unit.
Is DTC “C1604” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010119198
1.
CHECK TERMINALS AND HARNESS CONNECTORS
Check EPS control unit pin terminals for damage or loose connection with harness connector. If any items are
damaged, repair or replace malfunctioning parts.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT
1. Erase “Self-Diagnostic Result” of “EPS” control unit.
2. Turn the power switch OFF, and then wait 10 seconds and more.
3. Turn the power switch OFF to ON.
4. Perform “Self-Diagnostic Result” of “EPS”.
Is DTC “C1604” detected?
YES
>> Torque sensor is malfunctioning. Replace steering column assembly. Refer to
.
NO
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
DTC
Display item
Malfunction detected condition
Possible cause
C1604
TORQUE SENSOR
When torque sensor output signal is malfunctioning.
• Harness or connector
• Torque sensor
• EPS control unit
C1606 EPS MOTOR
STC-27
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
H
I
J
K
L
M
A
B
STC
N
O
P
C1606 EPS MOTOR
DTC Logic
INFOID:0000000010119199
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the power switch OFF to ON.
2. Perform “Self-Diagnostic Result” of “EPS” control unit.
Is DTC “C1606” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010119200
1.
PERFORM SELF-DIAGNOSIS
With CONSULT
1. Erase “Self-Diagnostic Result” of “EPS” control unit.
2. Turn the power switch OFF, and then wait 10 seconds and more.
3. Turn the power switch OFF to ON.
4. Perform “Self-Diagnostic Result” of “EPS” control unit.
Is DTC “C1606” detected?
YES
>> EPS motor is malfunctioning. Replace steering column assembly. Refer to
NO
>> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace malfunctioning parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1606
EPS MOTOR
When the motor driver malfunction of EPS control
unit or EPS motor malfunction is detected.
• Harness or connector
• EPS motor
• EPS control unit
STC-28
< DTC/CIRCUIT DIAGNOSIS >
C1607, C1608 EPS CONTROL UNIT
C1607, C1608 EPS CONTROL UNIT
DTC Logic
INFOID:0000000010119201
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the power switch OFF to ON.
2. Perform “Self-Diagnostic Result” of “EPS” control unit.
Is DTC “C1607” or “C1608” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010119202
1.
CHECK TERMINALS AND HARNESS CONNECTORS
Check EPS control unit pin terminals for damage or loose connection with harness connector. If any items are
damaged, repair or replace malfunctioning parts.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT
1. Erase “Self-Diagnostic Result” results of “EPS” control unit.
2. Turn the power switch OFF, and then wait 10 seconds and more.
3. Turn the power switch OFF to ON.
4. Perform “Self-Diagnostic Result” of “EPS” control unit.
Is DTC “C1607” or “C1608” detected?
YES
>> EPS control unit is malfunctioning. Replace steering column assembly. Refer to
.
NO
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
DTC
Display item
Malfunction detected condition
Possible cause
C1607
EEPROM
When the memory (EEPROM) system malfunction is
detected in EPS control unit.
EPS control unit
C1608
CONTROL UNIT
When the internal malfunction is detected in EPS
control unit.
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