Infiniti QX56 (Z62). Manual - part 335
DAS
U150B ECM CAN 3
DAS-377
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
U150B ECM CAN 3
DTC Logic
INFOID:0000000006228210
DTC DETECTION LOGIC
NOTE:
If DTC “U150B” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the LDP system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U150B” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U150B” detected as the current malfunction?
YES
>> Refer to
DAS-377, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228211
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U150B” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ECM SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
U150B
(157)
ECM CAN CIRC 3
ADAS control unit detects an error signal that is
received from ECM via CAN communication
ECM