Nissan March K13. Instruction — part 637
C1606 EPS MOTOR
STC-23
< DTC/CIRCUIT DIAGNOSIS >
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C1606 EPS MOTOR
DTC Logic
INFOID:0000000005912727
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS” self-diagnosis.
Is DTC “C1606” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005912728
1.
CHECK EPS MOTOR
Check the EPS motor. Refer to
STC-23, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> EPS motor is malfunction. Replace steering column assembly. Refer to
2.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect EPS motor harness connector.
3.
Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
Is the inspection result normal?
YES
>> Replace EPS control unit. Refer to
.
NO
>> Repair or replace error-detected parts.
Component Inspection
INFOID:0000000005912729
1.
CHECK EPS MOTOR
1.
Turn the ignition switch OFF.
2.
Disconnect EPS motor harness connector.
3.
Check resistance between EPS motor connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> EPS motor is malfunction. Replace steering column assembly. Refer to
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
EPS motor
Resistance (Approx.)
Terminal
19
20
0.1
Ω
or less
STC-24
< DTC/CIRCUIT DIAGNOSIS >
C1607, C1608 EPS CONTROL UNIT
C1607, C1608 EPS CONTROL UNIT
DTC Logic
INFOID:0000000005912731
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS” self-diagnosis.
Is DTC “C1607” or “C1608” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005912732
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Erase self-diagnosis results for “EPS”.
3.
Perform “EPS” self-diagnosis.
Is DTC “C1607” or “C1608” detected?
YES
>> Replace EPS control unit. Refer to
.
NO
>> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any item are damaged, repair or replace error-detected parts.
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.
C1609 VEHICLE SPEED SIGNAL
STC-25
< DTC/CIRCUIT DIAGNOSIS >
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C1609 VEHICLE SPEED SIGNAL
Description
INFOID:0000000005912733
EPS control unit receives the vehicle speed signal from ABS actuator and electric unit (control unit) via CAN
communication line.
DTC Logic
INFOID:0000000005912734
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS” self-diagnosis.
Is DTC “C1609” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005912735
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “ABS” self-diagnosis.
Is any DTC detected?
YES
>> Check the DTC.
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform “EPS” self-diagnosis.
Is DTC “C1609” detected?
YES
>> Replace EPS control unit. Refer to
.
NO
>> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any item are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
• Malfunction is detected in vehicle speed signal that
is output from ABS actuator and electric unit (con-
trol unit) via CAN communication.
• ABS actuator and electric unit (control unit) input
signal error is detected.
• Harness or connector
• CAN communication line
• EPS control unit
• ABS malfunction
- Vehicle speed signal error
STC-26
< DTC/CIRCUIT DIAGNOSIS >
C1610 ENGINE STATUS SIGNAL
C1610 ENGINE STATUS SIGNAL
Description
INFOID:0000000005912736
EPS control unit receives the engine status signal from ECM via CAN communication line.
DTC Logic
INFOID:0000000005912737
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “EPS” self-diagnosis.
Is DTC “C1610” detected?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005912738
1.
PERFORM ECM SELF-DIAGNOSIS
With CONSULT-III
1.
Turn the ignition switch OFF to ON.
2.
Perform “ENGINE” self-diagnosis. Refer to
[HR12DE (TYPE 2)].
Is any DTC detected?
YES
>> Check the DTC. Refer to
[HR12DE (TYPE 1)],
[HR12DE (TYPE 2)].
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform “EPS” self-diagnosis.
Is DTC “C1610” detected?
YES
>> Replace EPS control unit. Refer to
.
NO
>> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any item are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1610
CAN ENG RPM
• Malfunction is detected in engine status signal
that is output from ECM via CAN communica-
tion.
• ECM input signal error is detected.
• Harness or connector
• CAN communication line
• EPS control unit
• ECM
- Engine status signal error
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