Nissan Tiida C11. Instruction — part 1224
C1610 CAN ENG RPM
STC-19
< COMPONENT DIAGNOSIS >
[EPS]
C
D
E
F
H
I
J
K
L
M
A
B
STC
N
O
P
C1610 CAN ENG RPM
Description
INFOID:0000000001716753
EPS control unit receives engine RPM input from the ECM through the CAN communication lines.
DTC Logic
INFOID:0000000001716754
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001697730
1.
CHECK DTC WITH ECM
Perform self-diagnosis for ECM. Refer to
EC-107, "CONSULT-III Function"
(HR16DE with EURO-OBD),
EC-772, "CONSULT-III Function"
(MR18DE),
EC-1104, "Diagnosis Description"
(K9K).
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system.
NO
>> GO TO 2.
2.
CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to
STC-22, "EPS Control Unit Input/Output Signal Reference
OK or NG
OK
>> GO TO 3.
NG
>> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
3.
CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK
>> INSPECTION END
NG
>> Perform self-diagnosis for ECM. Refer to
EC-107, "CONSULT-III Function"
(HR16DE with EURO-
OBD),
EC-462, "CONSULT-III Function"
(HR16DE without EURO-OBD),
EC-1104, "Diagnosis Description"
Special Repair Requirement (Models with ESP)
INFOID:0000000001730969
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
DTC
Display item
Malfunction detected condition
Possible cause
C1610
CAN ENG RPM
When the malfunction is detected in engine status
signal received with CAN communication.
• Harness or connector
• CAN communication line
• EPS control unit
Self-diagnosis results
CAN ENG RPM
STC-20
< COMPONENT DIAGNOSIS >
[EPS]
C1610 CAN ENG RPM
Always perform the neutral position adjustment for the steering angle sensor, when replacing the EPS control
unit. Refer to
BRC-90, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Descrip-
.
>> END
U1000 CAN COMM CIRCUIT
STC-21
< COMPONENT DIAGNOSIS >
[EPS]
C
D
E
F
H
I
J
K
L
M
A
B
STC
N
O
P
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000001716748
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000001716749
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001697731
1.
CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III
1.
Turn ignition switch ON and start engine.
2.
Select “SELF-DIAG RESULTS” mode for “EPS” with CONSULT-III.
3.
Perform the self-diagnosis.
Is the “CAN COMM CIRCUIT [U1000]” displayed?
YES
>> Print out CONSULT-II screen and go to
LAN-30, "CAN System Specification Chart"
NO
>> INSPECTION END
Special Repair Requirement (Models with ESP)
INFOID:0000000001730970
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the EPS control
unit. Refer to
BRC-90, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Descrip-
.
>> END
DTC
Display item
Malfunction detected condition
Possible cause
U1000
CAN COMM CIRCUIT
When EPS control unit is not transmitting or receiving
CAN communication signal for 2 seconds or more.
• Harness or connector
• CAN communication line
• EPS control unit
Self-diagnosis results
CAN COMM CIRCUIT
STC-22
< ECU DIAGNOSIS >
[EPS]
EPS CONTROL UNIT
ECU DIAGNOSIS
EPS CONTROL UNIT
EPS Control Unit Input/Output Signal Reference Value
INFOID:0000000001716757
SPECIFICATIONS WITH CONSULT-III
CAUTION:
The output signal indicates the EPS control unit calculation date. The normal values will be displayed
even in the event that the output circuit (harness) is open.
*1: In the front of the value, “L” is displayed at steering left and “R” is displayed at steering right.
*2: Almost in accordance with the value of “MOTOR SIG”. It is not a malfunction though these values are not accorded when steering
quickly.
*3: It is not a malfunction, though it might not be corresponding just after ignition switch is turned ON.
*4: It turns to OFF after waiting for a short period of time.
Monitor item (Unit)
Content
Condition
Display value
MOTOR VOL (V)
Power supply voltage for
EPS control unit
Ignition switch: ON
Battery voltage
TORQUE SENSOR (Nm)
Steering wheel turning
force
Engine running
Steering wheel: Not
steering (There is no
steering force)
0.00 Nm
Steering wheel: Steer-
ing
0 – 8.19 Nm
*1
(The value
is changed according to
steering left or right)
MOTOR SIG (A)
Command current to EPS
motor
Engine running
Steering wheel: Not
steering (There is no
steering force)
0.00 A
Steering wheel: Steer-
ing
0 – 65.00 A (The value is
changed according to
steering left or right)
MOTOR CURRENT (A)
Consumption current of
EPS motor
Engine running
Steering wheel: Not
steering (There is no
steering force)
0.00 A
Steering wheel: Steer-
ing
0 – 65.00 A
*2
(The value
is changed according to
steering left or right)
VEHICLE SPEED (km/h) or (mph)
Vehicle speed
Vehicle stopped
0 km/h (0 mph)
While driving
Approximately equal to
the indication on speed-
ometer (Inside of
±
10%)
*3
WARNING LAMP (ON/OFF)
EPS warning lamp condi-
tion
EPS warning lamp: ON
ON
EPS warning lamp: OFF
OFF
DERATING STAT (ON/OFF)
Protect overload status
Engine running
Steering wheel: Nor-
mal steering
OFF
Steering wheel: Steer-
ing over the stop
ON
*4
ENGINE STATUS (RUN/STOP)
Engine status
Engine stopped
(Engine speed: Less than 400 rpm)
STOP
Engine running
(Engine speed: 400 rpm or more)
RUN
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