Infiniti F50. Manual — part 746
SCS-1
SUSPENSION CONTROL SYSTEM
E SUSPENSION
CONTENTS
C
D
F
G
H
I
J
K
L
M
SECTION
A
B
SCS
SUSPENSION CONTROL SYSTEM
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER
SUSPENSION . . . . . . . . . . . . . . . . 2
Precautions . . . . . . . . . . . . . . . .. 2
PRELIMINARY CHECK . . . . . . . . . . 2
Fail-Safe . . . . . . . . . . . . . . . . ... 2
FAIL-SAFE FUNCTIONS . . . . . . . . . .. 2
FAIL-SAFE ITEMS . . . . . . . . . . . . 2
Active Damper Suspension Configuration . . . ... 3
CONSULT-II Inspection Procedure . . . . . . 15
ACTIVE TEST PROCEDURE . . . . . . . . 17
Self-Diagnosis . . . . . . . . . . . . . . 19
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS . . . . . . . . . . . . . . . . . . 21
SCS-2
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER SUSPENSION
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER SUSPENSION
PFP:25962
Precautions
EES000EX
PRELIMINARY CHECK
●
Check power steering fluid level.
●
Check power steering fluid line for improper attachment, leaks, cracks, damage, loose connections, chaf-
ing and deterioration.
●
Check tire pressure.
●
Check wheel alignment.
●
Check shock absorber for oil leakage or other damage.
Fail-Safe
EES000EY
FAIL-SAFE FUNCTIONS
The active damper suspension electronically controls the shock absorber dampening force. If, for some rea-
son, the dampening force falls under any of the conditions listed in the “Fail-safe items” table below, the fail-
safe system will activate to maintain a constant level of shock absorber dampening force. If symptoms (such
as unstable steering, unpleasant riding comfort, etc.) are pointed out, check and correct the malfunctioning
part or area using the diagnostic procedure outlined under “Diagnostic Procedure 6 (Hard or soft feel)”. Refer
to
SCS-25, "TROUBLE DIAGNOSIS FOR SYMPTOMS"
FAIL-SAFE ITEMS
NOTE:
Even after the fail-safe function is canceled, the fail-safe processed history is retained in the control unit mem-
ory.
Item
Fail-safe input conditions
Fail-safe end conditions
Fail-safe processing
Vehicle speed sensor
●
Vehicle speed signal cannot be entered for
more than 10 seconds when the vehicle is run-
ning with the engine revolution greater than
1,500 rpm.
●
Vehicle speed signal changes from a value of
greater than 30 km/h (19 MPH) to a value of
less than 2 km/h (1 MPH) within 1.4 seconds.
A signal corresponding
to a vehicle speed of
greater than 2 km/h (1
MPH) is entered.
●
Shock absorber dampen-
ing force is maintained at
a preset value.
●
Power steering control
current is maintained at
approximately 0.18A.
Steering angle sensor
A steering signal of greater than 1
°
does not
change for more than 180 seconds when vehicle
speed is greater than 60 km/h (37 MPH).
A steering signal of
greater than 1
°
is
entered.
Shock absorber dampening
force is maintained at a pre-
set value.
Steering angle (neu-
tral) signal
●
Steering neutral signal is not entered (“ON”) at
all while vehicle is being driven a distance of 10
km (6 miles) or more.
●
Steering neutral signal is not entered (“ON”) at
all when steering wheel is turned at least 360
°
in
either direction.
●
Steering neutral signal is staying “ON” only
while steering wheel is being turned at least 50
°
in either direction.
More than one ON-OFF
signal is entered.
Shock absorber dampening
force is maintained at a pre-
set value.
Vertical G sensor
●
Vertical G sensor signal corresponding to a
voltage of greater than 4.5 volts does not
change for 2 seconds.
●
Vertical G sensor signal corresponding to a
voltage of less than 0.5 volts does not change
for 2 seconds.
Vertical G sensor signal
corresponding to a volt-
age of greater than 1volt
or less than 4 volts.
When any of the vertical G
sensors are determined to
be faulty, shock absorber
dampening force is main-
tained at a preset value.
Stop lamp switch
Fail-safe system does not process data.
DTC is displayed when self-diagnosis is performed.
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER SUSPENSION
SCS-3
C
D
F
G
H
I
J
K
L
M
A
B
SCS
Active Damper Suspension Configuration
EES000EZ
SYSTEM COMPONENTS
SEIA0272E
SCS-4
TROUBLE DIAGNOSIS FOR ACTIVE DAMPER SUSPENSION
SCHEMATIC
TEWM0020E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст