check engine light NISSAN LATIO 2009 Service Manual Online

Removal and Instal-
lation " .
CHECKING STEERING WHEEL PLAY
• Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on the
outer circumference.
• When the measurement value is outside the standard val ue, check backlash for each joint of steering col-
umn assembly and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL
• Make sure that steering gear assembly, steering colu mn assembly and steering wheel are installed in the
correct position.
• Perform neutral position inspection after wheel alignment. Refer to PS-2, " Precaution for Supplemental
Restraint System (SRS) "AIR BA
G" and "SEAT BELT PRE-TENSIONER" " .
• Set vehicle to the straight-ahead position and c onfirm steering wheel is in the neutral position.
• Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if steer-
ing wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Check steering wheel turning force when steering wheel has been turned 360 ° from neutral position using suitable tool as
shown.
4. If steering wheel turning force is out of the specification, refer to STC-6, " How to Perform Trouble Diagnosis " .
CHECKING FRONT WHEEL TURNING ANGLE Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel
turning force : Less than 36 N (3.7 kg-f, 8.2 lb-f)

STC
N
O P
Symptom Chart
INFOID:0000000004307297
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 engine Engine 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 turning CAN 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 turning Wheel alignment
STC-23 Steering wheel
turning force
(Mechanical malfunction)
Unbalance steering wheel turning force,
while driving (Torque variation) • While driving
• Steering wheel turning Steering column intermediate
shaft installation condition STC-24 Steering wheel
turning force
(Mechanical malfunction)