Infiniti Q45. Manual — part 646
TROUBLE DIAGNOSES WORK FLOW
LAN-33
[CAN]
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LAN
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR RAS CONTROL UNIT
Display Results (Present)
●
OK: Normal
●
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
●
–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)
●
OK: Normal
●
0: There is malfunction now.
●
1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0
→
1
→
2...38
→
39 after returning to the
normal condition whenever IGN OFF
→
ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0
when malfunction is detected again in the process.
●
–: Undiagnosed
PKIB9803E
“SELECT SYSTEM”
screen
“CAN DIAG SUP-
PORT MNTR”
screen
Description
Present
Past
RAS/HICAS
TRANSMIT DIAG
Make sure of normal transmission.
OK/UNKWN/–
OK/0/1 – 39/–
ECM
Make sure of normal reception from ECM.
OK/UNKWN/–
VDC/TCS/ABS
Make sure of normal reception from VDC/TCS/ABS
control unit.
OK/UNKWN/–
STRG
Make sure of normal reception from steering angle
sensor.
OK/UNKWN/–
LAN-34
[CAN]
TROUBLE DIAGNOSES WORK FLOW
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR LDW CAMERA UNIT
Display Results (Present)
●
OK: Normal
●
UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
●
–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.
Display Results (Past)
●
OK: Normal
●
0: There is malfunction now.
●
1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0
→
1
→
2...38
→
39 after returning to the
normal condition whenever IGN OFF
→
ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0
when malfunction is detected again in the process.
●
–: Undiagnosed
PKIC5951E
“SELECT SYSTEM”
screen
“CAN DIAG SUPPORT
MNTR” screen
Description
Present
Past
LDW
TRANSMIT DIAG
TRANSMIT DIAG is not diagnosed.
–
OK/0/1 – 39/–
ECM
Make sure of normal reception from ECM.
OK/UNKWN/–
VDC/TCS/ABS
Make sure of normal reception from VDC/TCS/
ABS control unit.
OK/UNKWN/–
ICC
Make sure of normal reception from ICC unit.
OK/UNKWN/–
TCM
Make sure of normal reception from TCM.
OK/UNKWN/–
CAN COMMUNICATION
LAN-35
[CAN]
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CAN COMMUNICATION
PFP:23710
System Description
NKS001GP
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Component Parts and Harness Connector Location
NKS002DL
1.
ICC unit B243 (with ICC system)
2.
Pre-crash seat belt control unit B318 3.
ECM F101
4.
VDC/TCS/ABS control unit E218
5.
ICC sensor E52 (with ICC system)
6.
Data link connector M31
7.
Combination meter M41
8.
Steering angle sensor M52
9.
LDW camera unit R26 (with lane
departure warning system)
10. A/T assembly F26
11.
RAS control unit B39 (with rear
active steer)
SKIB6961E
LAN-36
[CAN]
CAN COMMUNICATION
Schematic
NKS002DM
TKWM3783E
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