Infiniti Q45. Manual — part 806
TROUBLE DIAGNOSIS FOR SYSTEM
SCS-41
C
D
F
G
H
I
J
K
L
M
A
B
SCS
Shock Absorber Actuator
NES000CC
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
ACTIVE DAMPER SUSPENSION CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
Monitored item
Content
Condition
Display value
DAMP MTR FR [step]
Condition of front shock
absorber actuator RH
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR FL [step]
Condition of front shock
absorber actuator LH
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR RR [step]
Condition of rear shock
absorber actuator RH
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR RL [step]
Condition of rear shock
absorber actuator LH
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
Terminal
Wire
color
Item
Condition
Data (Approx.)
9
R
Front shock absorber actuator RH (A)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
25
BR
Front shock absorber actuator LH (A)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
26
LG
Front shock absorber actuator LH (B')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
27
R/B
Rear shock absorber actuator RH (B)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
28
L/R
Rear shock absorber actuator LH (A')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
29
PU
Rear shock absorber actuator LH (B)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
30
Y/B
Rear shock absorber actuator LH (B')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
34
R/W
Front shock absorber actuator LH (A')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
35
SB
Rear shock absorber actuator RH (A)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
36
B/W
Rear shock absorber actuator RH (B')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
37
B/P
Rear shock absorber actuator LH (A)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
38
L
Front shock absorber actuator RH (B)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
39
OR
Front shock absorber actuator RH (A')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
42
L/R
Front shock absorber actuator power
supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
43
G
Front shock absorber actuator RH (B')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
44
L/W
Front shock absorber actuator LH (B)
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
45
G/Y
Rear shock absorber actuator RH (A')
Vehicle speed: 25 km/h (16 MPH) or more
Repeats 0 V - battery voltage
48
B/R
Rear shock absorber actuator power
supply
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
SCS-42
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1.
CHECK VEHICLE SHOCK ABSORBER ACTUATOR
With CONSULT-II
1.
Start engine.
2.
Select “DATA MONITOR” mode for “ACT D/SUS” with CONSULT-II.
3.
Read out the value of “DAMP MTR FR”, “DAMP MTR FL”,
“DAMP MTR RR” and “DAMP MTR RL”.
Without CONSULT-II
1.
Start engine.
2.
Check signal between active damper suspension control unit
harness connector (A) terminals and ground.
OK or NG
OK >> GO
TO
8.
NG
>> GO TO 2.
Monitored item
Condition
Display value
DAMP MTR FR
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR FL
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR RR
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
DAMP MTR RL
Vehicle stopped
0 step
Vehicle running
-60 - 80 step
SEIA0714E
Connector
Terminal
Condition
Data (Approx.)
B37
9 - Ground
Vehicle speed: 25 km/h (16 MPH)
or more
Repeats 0 V -
battery voltage
B38
25 - Ground
26 - Ground
27 - Ground
28 - Ground
29 - Ground
30 - Ground
34 - Ground
35 - Ground
36 - Ground
37 - Ground
38 - Ground
39 - Ground
42 - Ground
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
43 - Ground
Vehicle speed: 25 km/h (16 MPH)
or more
Repeats 0 V -
battery voltage
44 - Ground
45 - Ground
48 - Ground
Ignition switch: ON
Battery voltage
Ignition switch: OFF
0 V
SEIA0715E
TROUBLE DIAGNOSIS FOR SYSTEM
SCS-43
C
D
F
G
H
I
J
K
L
M
A
B
SCS
2.
CHECK FRONT SHOCK ABSORBER ACTUATOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect active damper suspension control unit harness connector and the front shock absorber actua-
tor harness connector.
3.
Check continuity between the following terminals.
–
Active damper suspension control unit harness connector (A)
B38 terminal 42 and front shock absorber actuator LH harness
connector (B) E61 terminal 5.
–
Active damper suspension control unit harness connector (A)
B38 terminal 42 and front shock absorber actuator RH harness
connector (B) E31 terminal 5.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK REAR SHOCK ABSORBER ACTUATOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect active damper suspension control unit harness connector and the rear shock absorber actua-
tor harness connector.
3.
Check continuity between the following terminals.
–
Active damper suspension control unit harness connector (A)
B38 terminal 48 and rear shock absorber actuator LH harness
connector (B) B26 terminal 5.
–
Active damper suspension control unit harness connector (A)
B38 terminal 48 and rear shock absorber actuator RH harness
connector (B) B226 terminal 5.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
Continuity should exist.
SEIA0716E
Continuity should exist.
SEIA0717E
SCS-44
TROUBLE DIAGNOSIS FOR SYSTEM
4.
CHECK HARNESS BETWEEN ACTIVE DAMPER SUSPENSION CONTROL UNIT AND FRONT
SHOCK ABSORBER ACTUATOR LH
1.
Turn ignition switch “OFF”.
2.
Disconnect active damper suspension control unit harness connector and the front shock absorber actua-
tor LH harness connector.
3.
Check continuity between the following terminals.
–
Active damper suspension control unit harness connector (A)
B38 terminal 25 and front shock absorber actuator LH harness
connector (B) E61 terminal 1.
–
Active damper suspension control unit harness connector (A)
B38 terminal 26 and front shock absorber actuator LH harness
connector (B) E61 terminal 4.
–
Active damper suspension control unit harness connector (A)
B38 terminal 34 and front shock absorber actuator LH harness
connector (B) E61 terminal 2.
–
Active damper suspension control unit harness connector (A)
B38 terminal 44 and front shock absorber actuator LH harness connector (B) E61 terminal 3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
5.
CHECK HARNESS BETWEEN ACTIVE DAMPER SUSPENSION CONTROL UNIT AND FRONT
SHOCK ABSORBER ACTUATOR RH
1.
Turn ignition switch “OFF”.
2.
Disconnect active damper suspension control unit harness connector and the front shock absorber actua-
tor RH harness connector.
3.
Check continuity between the following terminals.
–
Active damper suspension control unit harness connector (A)
B37 terminal 9 and front shock absorber actuator RH harness
connector (C) E31 terminal 1.
–
Active damper suspension control unit harness connector (B)
B38 terminal 38 and front shock absorber actuator RH harness
connector (C) E31 terminal 3.
–
Active damper suspension control unit harness connector (B)
B38 terminal 39 and front shock absorber actuator RH harness
connector (C) E31 terminal 2.
–
Active damper suspension control unit harness connector (B)
B38 terminal 43 and front shock absorber actuator RH harness connector (C) E31 terminal 4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
Continuity should exist.
SEIA0718E
Continuity should exist.
SEIA0719E
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