Nissan Tiida C11. Manual — part 1222
C1604 TORQUE SENSOR
STC-11
< COMPONENT DIAGNOSIS >
[EPS]
C
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A
B
STC
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C1604 TORQUE SENSOR
Description
INFOID:0000000001716736
Torque sensor detects the steering torque, and transmit the signal to EPS control unit.
DTC Logic
INFOID:0000000001716737
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:0000000001697725
1.
CHECK TORQUE SENSOR SIGNAL
With CONSULT-III
1.
Start engine.
2.
Select “DATA MONITOR“ mode for “EPS” with CONSULT-III.
3.
Check the value of “TORQUE SENSOR”. Refer to
STC-22, "EPS Control Unit Input/Output Signal Refer-
Without CONSULT-III
1.
Start engine.
2.
Check voltage between EPS control unit harness connector M53 terminals 4, 5, 6, 7 and ground. Refer to
STC-22, "EPS Control Unit Input/Output Signal Reference Value"
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
CHECK HARNESS AND CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect EPS control unit harness connector and torque sensor harness connector.
3.
Check continuity between EPS control unit harness connector
M53 (A) terminals 4, 5, 6, 7 and torque sensor harness connec-
tor M63 (B) terminals 1, 2, 3, 4.
DTC
Display item
Malfunction detected condition
Possible cause
C1604
TORQUE SENSOR
Malfunction of the torque sensor in steering column
assembly is detected.
• Harness or connector
• Torque sensor
• EPS control unit
Self-diagnosis results
TORQUE SENSOR
Terminal
Continuity
4 – 3
Yes
5 – 2
6 – 1
7 – 4
SGIA1629E
STC-12
< COMPONENT DIAGNOSIS >
[EPS]
C1604 TORQUE SENSOR
Also check harness for short to ground and short to power.
4.
Connect EPS control unit harness connector and torque sensor harness connector.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
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 4.
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.
4.
CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK
>> INSPECTION END
NG
>> Torque sensor is malfunctioning. Replace steering column assembly. Refer to
.
Special Repair Requirement (Models with ESP)
INFOID:0000000001730964
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
C1606 EPS MOTOR
STC-13
< COMPONENT DIAGNOSIS >
[EPS]
C
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A
B
STC
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C1606 EPS MOTOR
Description
INFOID:0000000001716739
EPS motor provides the assist torque by control signal from EPS control unit.
DTC Logic
INFOID:0000000001716740
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:0000000001697726
1.
CHECK EPS MOTOR SIGNAL
With CONSULT-III
1.
Start engine.
2.
Select “DATA MONITOR” mode for “EPS” with CONSULT-III.
3.
Check the values of “MOTOR SIG” and “MOTOR CURRENT”. Refer to
STC-22, "EPS Control Unit Input/
Output Signal Reference Value"
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
CHECK EPS MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect EPS control unit harness connector.
3.
Check resistance between EPS control unit harness connector
terminals.
4.
Connect EPS control unit harness connector.
OK or NG
OK
>> GO TO 3.
NG
>> EPS motor is malfunctioning. Replace steering column
assembly. Refer to
ST-9, "Removal and Installation"
3.
CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to
STC-22, "EPS Control Unit Input/Output Signal Reference
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
Self-diagnosis results
EPS MOTOR
Connector
Terminal
Resistance
M60
19 – 20
Approx. 0.1
Ω
or less
AWGIA0030ZZ
STC-14
< COMPONENT DIAGNOSIS >
[EPS]
C1606 EPS MOTOR
OK or NG
OK
>> GO TO 4.
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.
4.
CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.
Special Repair Requirement (Models with ESP)
INFOID:0000000001730965
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
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