warning light NISSAN TIIDA 2008 Service Owner's Guide

STC-1
STEERING
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SECTION STC
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CONTENTS
STEERING CONTROL SYSTEM
EPS
SERVICE INFORMATION ............................
2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
Service Notice or Precaution for EPS System ..........2
EPS SYSTEM ......................................................4
System Description ...................................................4
Schematic .................................................................5
CAN Communication .................................................5
TROUBLE DIAGNOSIS ......................................6
Fail-Safe Function .....................................................6
How to Perform Trouble Diagnosis ...........................6
Component Parts Location ........................................7
Wiring Diagram - EPS - .............................................8
EPS Control Unit Input/Output Signal Reference
Value .........................................................................
9
EPS Terminal and Reference Value ........................10
CONSULT-III Function (EPS) ..................................11
Symptom Chart ........................................................13
TROUBLE DIAGNOSIS FOR SYSTEM ............14
DTC C1601 BATTERY VOLT ..................................14
DTC C1604 TORQUE SENSOR .............................15
DTC C1606 EPS MOTOR .......................................16
DTC C1607 EEPROM .............................................17
DTC C1608 CONTROL UNIT ..................................17
DTC C1609 CAN VHCL SPEED .............................18
DTC C1610 CAN ENG RPM ...................................19
DTC U1000 CAN COMM CIRCUIT .........................19
Component Inspection .............................................19
TROUBLE DIAGNOSIS FOR SYMPTOMS ......21
EPS Warning Lamp Does Not Turn ON ..................21
EPS Warning Lamp Does Not Turn OFF ................21
Steering Wheel Turning Force Is Heavy or Light .....22
Unbalance Steering Wheel Turning Force and Re-
turn Between Right and Left ....................................
23
Unbalance Steering Wheel Turning Force (Torque
Variation) .................................................................
24

TROUBLE DIAGNOSIS
STC-13
< SERVICE INFORMATION >[EPS]
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Symptom ChartINFOID:0000000001703882
If EPS warning lamp turns ON, perform self-diagnosis. Refer to STC-11, "CONSULT-III Function (EPS)" .
Symptom Condition Check item Reference page
EPS warning lamp does not turn ON when ig-
nition switch to “ON”.
(EPS warning lamp check)Ignition switch: ONCAN communication line
STC-21
Combination meter
EPS warning lamp does not turn OFF for sev-
eral seconds after starting the engineEngine runningCAN communication line
STC-21
Power supply and ground for
EPS control unit
Torque sensor
EPS motor
Vehicle speed signal
Engine status signal
Combination meter
Steering wheel turning force is heavy or light,
while driving• While driving
• Steering wheel turningCAN communication line
STC-22
Vehicle speed signal
Engine status signal
EPS motor
Steering wheel turning force
(Mechanical malfunction)
Unbalance steering wheel turning force and
return between right and left, while driving• While driving
• Steering wheel turningWheel alignment
STC-23
Steering wheel turning force
(Mechanical malfunction)
Unbalance steering wheel turning force,
while driving (Torque variation)• While driving
• Steering wheel turningSteering column intermediate
shaft installation condition
STC-24
Steering wheel turning force
(Mechanical malfunction)