Infiniti FX35, FX50 (S51). Manual — part 363
CCS-272
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A34 COMMAND ERROR
C1A34 COMMAND ERROR
Description
INFOID:0000000005501883
ICC sensor integrated unit transmits the command signal required for the ECM control via CAN communica-
tion.
DTC Logic
INFOID:0000000005501884
DTC DETECTION LOGIC
NOTE:
If DTC “C1A34” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
SENSOR INTEGRATED UNIT : DTC Logic"
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Operate the ICC system and drive.
CAUTION:
Always drive safely.
3.
Stop the vehicle.
4.
Perform “All DTC Reading” with CONSULT-III.
5.
Check if the “C1A34” is detected as the current malfunction in self-diagnosis results of “ICC”.
Is “C1A34” detected as the current malfunction?
YES
>> Refer to
CCS-272, "Diagnosis Procedure"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501885
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A34” in “Self Diagnostic Result” of “ICC”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"
.
NO
>> Replace the ICC sensor integrated unit. Refer to
Special Repair Requirement
INFOID:0000000005501886
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
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A34
(34)
COMMAND ERROR
If an error occurs in the command signal that
ICC sensor integrated unit transmits to ECM
via CAN communication
ICC sensor integrated unit
CCS
C1A34 COMMAND ERROR
CCS-273
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
>> 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-274
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A35 ACCELERATOR PEDAL ACTUATOR
C1A35 ACCELERATOR PEDAL ACTUATOR
Description
INFOID:0000000005501887
• 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:0000000005501888
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005501889
1.
PERFORM THE SELF-DIAGNOSIS
1.
Start the engine.
2.
Turn the DCA system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A35” is detected as the current malfunction in self-diagnosis results of “ICC”.
Is “C1A35” detected as the current malfunction?
YES
>> Replace the accelerator pedal assembly.
NO
>> INSPECTION END
Special Repair Requirement
INFOID:0000000005501890
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.
>> WORK END
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A35
(35)
APA CIR
If the accelerator pedal actuator is malfunc-
tioning
Accelerator pedal actuator
CCS
C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
CCS-275
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
Description
INFOID:0000000005501891
• ITS communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit,
and accelerator pedal actuator with 2 communication lines.
• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
DTC Logic
INFOID:0000000005501892
DTC DETECTION LOGIC
NOTE:
If DTC “C1A36” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
SENSOR INTEGRATED UNIT : DTC Logic"
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the DCA system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A36” is detected as the current malfunction in self-diagnosis results of “ICC”.
Is “C1A36” detected as the current malfunction?
YES
>> Refer to
CCS-275, "Diagnosis Procedure"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501893
1.
CHECK ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A36” in “Self Diagnostic Result” of “ICC”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS
Check if the DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ICC sensor integrated unit. Refer to
Special Repair Requirement
INFOID:0000000005501894
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
Check the operation after performing the accelerator pedal released position learning when the following oper-
ation is performed.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A36
(36)
APA CAN COMM CIR
If an error occurs in the signal that the accel-
erator pedal actuator transmits via ITS com-
munication
• ICC sensor integrated unit
• Accelerator pedal actuator
• ITS communication system
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