Infiniti G37 Coupe. Manual — part 316
CCS
U0415 VDC CAN 1
CCS-77
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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U0415 VDC CAN 1
Description
INFOID:0000000001606934
ABS actuator and electric unit (control unit) transmits VDC system signal to ICC sensor integrated unit with
CAN communication.
NOTE:
If DTC U0415 is detected along with DTC U1000 or U0121, first diagnose the DTC U1000 or U0121.
• DTC U1000: Refer to
• DTC U0121: Refer to
.
DTC Logic
INFOID:0000000001606935
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001606936
1.
PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT
1.
Perform self-diagnosis of ICC sensor integrated unit.
2.
Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) or “VDC CAN CIR 1 [U0121]” (DTC 127) other
than “VDC CAN CIR2 [U0415]” (DTC 126) is detected.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
DIAGNOSIS FOR DETECTED DTC
Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
.
>> GO TO 6.
3.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
1.
Perform self-diagnosis of ABS actuator and electric unit (control unit).
2.
Check if DTC is detected. Refer to
.
Is any DTC detected?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
REPAIR OR REPLACE APPLICABLE ITEM
Repair or replace the applicable item identified by the self-diagnosis result.
>> GO TO 6.
5.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 6.
6.
CHECK ICC SYSTEM
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
U0415
(126)
VDC CAN CIR1
When a counter value of CAN signals received
from ABS actuator and electric unit (control unit)
does not change.
ABS actuator and electric unit (control
unit)
CCS-78
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
U0415 VDC CAN 1
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
CCS
U1000 CAN COMM CIRCUIT
CCS-79
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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U1000 CAN COMM CIRCUIT
Description
INFOID:0000000001606937
• CAN communication is a multiplex communication system. This enables it to transmit and receive many
communication signals at high speed by connecting control units with two communication lines (CAN-H and
CAN-L).
• Control units on the CAN network transmit signals with CAN communication control circuit in the control unit
and receive only necessary signals from other control units for various controls.
• CAN communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
DTC Logic
INFOID:0000000001606938
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001606939
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Go to “LAN system”. Refer to
LAN-16, "Trouble Diagnosis Flow Chart"
.
NO
>> Refer to
GI-38, "Intermittent Incident"
.
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
U1000
(100)
CAN COMM CIRCUIT
When ICC sensor integrated unit is not transmit-
ting or receiving CAN communication signal for 2
seconds or more.
CAN communication
CCS-80
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000001606940
Initial diagnosis for ICC sensor integrated unit.
DTC Logic
INFOID:0000000001606941
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001606942
1.
PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT
1.
Perform self-diagnosis of ICC sensor integrated unit.
2.
Print self-diagnosis result.
3.
Erase DTC.
4.
Perform self-diagnosis of ICC sensor integrated unit again.
5.
Check if DTC “CONTROL UNIT (CAN) [U1010]” (DTC110) is detected.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 3.
3.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
U1010
(110)
CONTROL UNIT (CAN)
ICC sensor integrated unit detects malfunction by
CAN initial diagnosis.
• ICC sensor integrated unit
• CAN communication
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