Infiniti FX35, FX50 (S51). Manual — part 366
CCS-284
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A40 SYSTEM SWITCH CIRCUIT
2.
Check for continuity between the brake booster control unit harness connector and IBA OFF switch har-
ness connector.
3.
Check for continuity between brake booster control unit and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
5.
CHECK IBA OFF SWITCH GROUND CIRCUIT
Check for continuity between IBA OFF switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair the harnesses or connectors.
6.
CHECK IBA OFF SWITCH SIGNAL
1.
Connect the brake booster control unit connector.
2.
Turn the ignition switch ON.
3.
Check voltage between brake booster control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace ICC sensor integrated unit. Refer to
NO
>> Replace the brake booster control unit.
Component Inspection (IBA OFF Switch)
INFOID:0000000005501911
1.
CHECK IBA OFF SWITCH
Check for continuity of IBA OFF switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the IBA OFF switch.
Brake booster control unit
IBA OFF switch
Continuity
Connector
Terminal
Connector
Terminal
B249
40
M184
7
Existed
Brake booster control unit
Ground
Continuity
Connector
Terminal
B249
40
Not existed
IBA OFF switch
Ground
Continuity
Connector
Terminal
M184
6
Existed
Terminals
Voltage
(Approx.)
(+)
(–)
Brake booster control unit
Ground
Connector
Terminal
B249
40
Battery voltage
Terminal
Condition
Continuity
6
7
When the IBA OFF switch is pressed
Existed
When the IBA OFF switch is released
Not existed
CCS
C1A40 SYSTEM SWITCH CIRCUIT
CCS-285
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
Special Repair Requirement
INFOID:0000000005501912
DESCRIPTION
Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit
SPECIAL REPAIR REQUIREMENT
1.
LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT
Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to
>> GO TO 2.
2.
CHECK DCA SYSTEM
1.
Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to
CCS-191, "ACTION TEST : Description"
for action test.)
2.
Check that the DCA system is normal.
>> WORK END
CCS-286
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1F01 ACCELERATOR PEDAL ACTUATOR
C1F01 ACCELERATOR PEDAL ACTUATOR
Description
INFOID:0000000005501913
• The accelerator pedal actuator is integrated into the accelerator pedal assembly.
• The accelerator pedal actuator consists of the control unit and motor.
DTC Logic
INFOID:0000000005501914
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn the ignition switch OFF.
2.
Turn the ignition switch ON.
3.
Slowly depress the accelerator pedal completely, and then release it.
4.
Repeat step 3 several times.
5.
Perform “All DTC Reading” with CONSULT-III.
6.
Check if the DTC “C1F01” is detected as the current malfunction on the self-diagnosis results of “ICC” or
“ACCELE PEDAL ACT”.
Is “C1F01” detected as the current malfunction?
YES
>> Refer to
CCS-286, "Diagnosis Procedure"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501915
1.
REPLACE ACCELERATOR PEDAL ASSEMBLY
Perform DTC confirmation procedure. If “C1F01” is detected as the current malfunction, replace the accelera-
tor pedal assembly. Refer to
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000005501916
DESCRIPTION
The accelerator pedal released position learning is necessary when the following operation is performed.
• Disconnection and connection of accelerator pedal assembly connector
• Replace accelerator pedal assembly
SPECIAL REPAIR REQUIREMENT
1.
ACCELERATOR PEDAL RELEASED POSITION LEARNING
Perform the accelerator pedal released position learning. Refer to
RELEASED POSITION LEARNING : Description"
(VQ35HR) or
RELEASED POSITION LEARNING : Description"
(VK50VE).
>> GO TO 2.
2.
CHECK DCA SYSTEM
1.
Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to
CCS-191, "ACTION TEST : Description"
for action test.)
2.
Check that the DCA system is normal.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1F01
(91)
APA MOTOR MALF
If the accelerator pedal actuator motor error
is detected
Accelerator pedal actuator integrated
motor malfunction
CCS
C1F01 ACCELERATOR PEDAL ACTUATOR
CCS-287
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
>> WORK END
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