Infiniti FX35, FX50 (S51). Manual — part 360
CCS-260
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A22 BCU CIRCUIT
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
(VK50VE).
NO
>> Replace the brake booster control unit.
Special Repair Requirement
INFOID:0000000005501858
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
C1A24 NP RANGE
CCS-261
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A24 NP RANGE
Description
INFOID:0000000005501859
ICC sensor integrated unit judges the NP position status from the shift position signal and current gear position
signal received from TCM via CAN communication.
DTC Logic
INFOID:0000000005501860
DTC DETECTION LOGIC
NOTE:
If DTC “C1A24” 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)
1.
Start the engine.
2.
Turn the DCA system ON.
3.
Wait for approximately 5 minutes or more after shifting the selector lever to “P” position.
4.
Perform “All DTC Reading” with CONSULT-III.
5.
Check if the “C1A24” is detected as the current malfunction in self-diagnosis results of “ICC”.
Is “C1A24” detected as the current malfunction?
YES
>> Refer to
CCS-261, "Diagnosis Procedure"
NO
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE (2)
1.
Wait for approximately 5 minutes or more after shifting the selector lever to “N” position.
2.
Perform “All DTC Reading”.
3.
Check if the “C1A24” is detected as the current malfunction in self-diagnosis results of “ICC”.
Is “C1A24” detected as the current malfunction?
YES
>> Refer to
CCS-261, "Diagnosis Procedure"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501861
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A24” 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 NP POSITION SWITCH SIGNAL
Check that “NP RANGE SW” operates normally in “DATA MONITOR” of “ICC”.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the ICC sensor integrated unit. Refer to
3.
CHECK TCM DATA MONITOR
Check that “SLCT LVR POSI” operates normally in “DATA MONITOR” of “TRANSMISSION”.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A24
(24)
NP RANGE
If the shift position signal and the current gear
position signal, transmitted from TCM via CAN
communication, are inconsistent
• TCM
• Transmission range switch
CCS-262
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A24 NP RANGE
Is the inspection result normal?
YES
>> Replace the ICC sensor integrated unit. Refer to
NO
>> GO TO 4.
4.
PERFORM TCM SELF-DIAGNOSIS
1.
Perform “All DTC Reading”.
2.
Check if any DTC is detected in “Self Diagnostic Result” of “TRANSMISSION”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
(VQ35HR) or
(VK50VE).
NO
>> Replace the ICC sensor integrated unit. Refer to
Special Repair Requirement
INFOID:0000000005501862
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
C1A28 BCU POWER SUPPLY CIRCUIT, C1A29 BCU POWER SUPPLY
CIRCUIT2
CCS-263
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A28 BCU POWER SUPPLY CIRCUIT, C1A29 BCU POWER SUPPLY
CIRCUIT2
Description
INFOID:0000000005501863
The brake booster control unit controls the brake booster, etc. with the battery power supply and ignition
power supply.
DTC Logic
INFOID:0000000005501864
DTC DETECTION LOGIC
NOTE:
If DTC “C1A28” or “C1A29” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
CCS-313, "ICC 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 “C1A28” or “C1A29” is detected as the current malfunction in self-diagnosis results.
Is “C1A28” or “C1A29” detected as the current malfunction?
YES
>> Refer to
CCS-263, "Diagnosis Procedure"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501865
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A28”, “C1A29” 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 BRAKE BOOSTER CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check brake booster control unit power supply and ground circuit. Refer to
CONTROL UNIT : Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> Replace the brake booster control unit.
NO
>> Repair brake booster control unit power supply and ground circuit.
Special Repair Requirement
INFOID:0000000005501866
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
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A28
(28)
BCU PWR SUPLY CIR
The brake booster control unit power supply
voltage is excessively low (less than 8 V).
• Brake booster control unit
• Harness, connector, fuse
C1A29
(29)
BCU PWR SUPLY
CIR2
The brake booster control unit power supply
voltage is excessively high (more than 19 V).
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