2008 NISSAN LATIO Service Repair Manual

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Page 2697 of 2771

NISSAN LATIO 2008 Service Repair Manual STC-14
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1601 BATTERY VOLTINFOID:0000000001703883
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Data are re

Page 2698 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS FOR SYSTEM
STC-15
< SERVICE INFORMATION >[EPS]
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3. Check continuity between EPS control unit harness connector
(A) terminal and ground.
Also check har

Page 2699 of 2771

NISSAN LATIO 2008 Service Repair Manual STC-16
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
3. Check continuity between EPS control unit harness connector
(A) M53 terminals 4, 5, 6, 7 and torque sensor harness connec-
tor (B) M

Page 2700 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS FOR SYSTEM
STC-17
< SERVICE INFORMATION >[EPS]
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With CONSULT-III
1. Start engine.
2. Select “DATA MONITOR” mode for “EPS” with CONSULT-III.
3.

Page 2701 of 2771

NISSAN LATIO 2008 Service Repair Manual STC-18
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mo

STC-18
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “EPS” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch “OFF”, and wait at least 10 seconds.
5. Start engine.
6. Perform the self-diagnosis again.
Is the
“CONTROL UNIT [C1608]” displayed?
YES >> Replace EPS control unit. Refer to PS-9, "Removal and Installation".
NO >>INSPECTION END
DTC C1609 CAN VHCL SPEEDINFOID:0000000001703888
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
* : It is not a malfunction, though it might not be corresponding just after ignition switch is turned ON.
DIAGNOSTIC PROCEDURE
1.CHECK DTC WITH COMBINATION METER
Perform self-diagnosis with combination meter. Refer to DI-13, "
CONSULT-III Function (METER/M&A)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO-1 >> With ABS: GO TO 2.
NO-2 >> Without ABS: GO TO 3.
2.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-18, "
CONSULT-III
Function (ABS)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
3.CHECK DTC WITH TRANSMISSON CONTROL MODULE (TCM)
Perform self-diagnosis with TCM. Refer to AT-73, "
CONSULT-III Function (A/T)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
4.CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to STC-9, "
EPS Control Unit Input/Output Signal Reference
Va l u e" .
OK or NG
OK >> GO TO 5.
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.
5.CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
Monitor item (Unit) Content Condition Display value
VEHICLE SPEED (km/h) or (mph) Vehicle speedVehicle stopped 0 km/h (0 mph)
While drivingApproximately equal to the indication on speed-
ometer (Inside of ±10%)

Page 2702 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS FOR SYSTEM
STC-19
< SERVICE INFORMATION >[EPS]
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OK >>INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) an

Page 2703 of 2771

NISSAN LATIO 2008 Service Repair Manual STC-20
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
3. Check resistance between EPS control unit harness connector
(A) terminals.
4. If NG, replace the steering column assembly. Refer to

Page 2704 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS FOR SYMPTOMS
STC-21
< SERVICE INFORMATION >[EPS]
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TROUBLE DIAGNOSIS FOR SYMPTOMS
EPS Warning Lamp Does Not Turn ONINFOID:0000000001703892
SYMPTOM:
EPS

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