Infiniti FX35, FX50 (S51). Manual — part 1612
C1D12 SHOCK ABSORBER ACTUATOR
SCS-33
< DTC/CIRCUIT DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
SCS
N
O
P
3.
CHECK FRONT RH SHOCK ABSORBER ACTUATOR
Perform the front RH shock absorber actuator. Refer to
SCS-33, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace the front RH shock absorber. Refer to
4.
PERFORM DATA MONITOR
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR” of “E-SUS”.
3.
Select “FR ACTUATOR CRNT” of “DATA MONITOR” screen.
4.
Drive the vehicle and check whether it is within the following range.
Is the inspection result normal?
YES
>> Check pin terminal and connection of each harness connector for damage or loose connections.
Repair or replace error-detected parts.
NO
>> Replace E-SUS control unit. Refer to
Component Inspection
INFOID:0000000005588939
1.
PERFORM ACTIVE TEST
With CONSULT-III
1.
Connect the E-SUS control unit harness connector and front RH shock absorber actuator harness con-
nector.
2.
Select “FRONT RIGHT ACTUATOR” in “ACTIVE TEST”.
3.
On the display, change the “Operation half cycle”, and check that the operation noise is heard from the
actuator.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the front RH wheel shock absorber. Refer to
.
FR ACTUATOR CRNT
: Approx. 0.65 – 2.0 A
Test item
Display Item
Display
Operation half cycle
SHOCK ABSORBER ACTUATOR
FRONT RIGHT ACTUATOR
0.1 seconds – 1 second (cycle in 0.1 seconds)
SCS-34
< DTC/CIRCUIT DIAGNOSIS >
C1D13 SHOCK ABSORBER ACTUATOR
C1D13 SHOCK ABSORBER ACTUATOR
Description
INFOID:0000000005588940
Integrated into each the shock absorbers on wheels and opens or closes the orifice by moving the solenoid
core vertically with the control current from E-SUS control unit to regulate the damping force.
DTC Logic
INFOID:0000000005588941
DTC DETECTION LOGIC
DTC REPRODUCTION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Start the engine and drive. Or select “E-SUS”, “FRONT LEFT ACTUATOR” of “ACTIVE TEST”, and per-
form the active test. Refer to
SCS-10, "CONSULT-III Function"
.
2.
Perform “E-SUS” self-diagnosis.
Is DTC “C1D13” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005588942
1.
CHECK FRONT LH SHOCK ABSORBER ACTUATOR CIRCUIT (1)
1.
Disconnect the E-SUS control unit harness connector.
2.
Check the resistance between the E-SUS control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK FRONT LH SHOCK ABSORBER ACTUATOR CIRCUIT (2)
1.
Disconnect the front LH shock absorber actuator harness connector.
2.
Check the continuity between the E-SUS control unit harness connector and front LH shock absorber
actuator harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace the malfunction harness or connector.
DTC
Display Item
Malfunction detected condition
Possible causes
C1D13
FL ACTUATOR SIG
An open or short circuit is detected in the front LH
wheel shock absorber actuator.
• Harness or connector
• Malfunction of the front LH
wheel shock absorber ac-
tuator
• E-SUS control unit
E-SUS control unit
Resistance
Connector
Terminal
B38
5
Approx. 0.65
Ω
4
E-SUS control unit
Front LH shock absorber actuator
Continuity
Connector
Terminal
Connector
Terminal
B38
5
E85
1
Existed
4
2
C1D13 SHOCK ABSORBER ACTUATOR
SCS-35
< DTC/CIRCUIT DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
SCS
N
O
P
3.
CHECK FRONT LH SHOCK ABSORBER ACTUATOR
Perform the front LH shock absorber actuator. Refer to
SCS-35, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace the front LH shock absorber. Refer to
.
4.
PERFORM DATA MONITOR
With CONSULT-III
1.
Start the engine.
2.
Select “DATA MONITOR” of “E-SUS”.
3.
Select “FL ACTUATOR CRNT” of “DATA MONITOR” screen.
4.
Drive the vehicle and check whether it is within the following range.
Is the inspection result normal?
YES
>> Check pin terminal and connection of each harness connector for damage or loose connections.
Repair or replace error-detected parts.
NO
>> Replace E-SUS control unit. Refer to
Component Inspection
INFOID:0000000005588943
1.
PERFORM ACTIVE TEST
With CONSULT-III
1.
Connect the E-SUS control unit harness connector and front LH shock absorber actuator harness connec-
tor.
2.
Select “FRONT LEFT ACTUATOR” in “ACTIVE TEST”.
3.
On the display, change the “Operation half cycle”, and check that the operation noise is heard from the
actuator.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the front LH wheel shock absorber. Refer to
FL ACTUATOR CRNT
: Approx. 0.65 – 2.0 A
Test item
Display Item
Display
Operation half cycle
SHOCK ABSORBER ACTUATOR
FRONT LEFT ACTUATOR
0.1 seconds – 1 second (cycle in 0.1 seconds)
SCS-36
< DTC/CIRCUIT DIAGNOSIS >
C1D14 SHOCK ABSORBER ACTUATOR
C1D14 SHOCK ABSORBER ACTUATOR
Description
INFOID:0000000005588944
Integrated into each the shock absorbers on wheels and opens or closes the orifice by moving the solenoid
core vertically with the control current from E-SUS control unit to regulate the damping force.
DTC Logic
INFOID:0000000005588945
DTC DETECTION LOGIC
DTC REPRODUCTION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Start the engine and drive. Or select “E-SUS”, “REAR RIGHT ACTUATOR” of “ACTIVE TEST”, and per-
form the active test. Refer to
SCS-10, "CONSULT-III Function"
.
2.
Perform “E-SUS” self-diagnosis.
Is DTC “C1D14” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005588946
1.
CHECK REAR RH SHOCK ABSORBER ACTUATOR CIRCUIT (1)
1.
Disconnect the E-SUS control unit harness connector.
2.
Check the resistance between the E-SUS control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK REAR RH SHOCK ABSORBER ACTUATOR CIRCUIT (2)
1.
Disconnect the rear RH shock absorber actuator harness connector.
2.
Check the continuity between the E-SUS control unit harness connector and rear RH shock absorber
actuator harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace the malfunctioning harness or connector.
DTC
Display Item
Malfunction detected condition
Possible causes
C1D14
RR ACTUATOR SIG
An open or short circuit is detected in the rear RH
wheel shock absorber actuator.
• Harness or connector
• Malfunction of the rear RH
wheel shock absorber ac-
tuator
• E-SUS control unit
E-SUS control unit
Resistance
Connector
Terminal
B38
8
Approx. 0.65
Ω
9
E-SUS control unit
Rear RH shock absorber actuator
Continuity
Connector
Terminal
Connector
Terminal
B38
8
B57
1
Existed
9
2
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