Infiniti QX56 (Z62). Manual — part 256
DAS
U150F AV CAN 3
DAS-61
< DTC/CIRCUIT DIAGNOSIS >
[ADAS CONTROL UNIT]
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U150F AV CAN 3
DTC Logic
INFOID:0000000006228052
DTC DETECTION LOGIC
NOTE:
If DTC “U150F” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the DCA system or LDP system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U150F” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U150F” detected as the current malfunction?
YES
>> Refer to
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228053
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U150F” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
.
NO
>> GO TO 2.
2.
CHECK AV CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “MULTI AV”.
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
U150F
(161)
AV CAN CIRC 3
ADAS control unit detects an error signal that is
received from AV control unit via CAN commu-
nication
AV control unit
DAS-62
< DTC/CIRCUIT DIAGNOSIS >
[ADAS CONTROL UNIT]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000006223493
1.
CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the ADAS control unit power supply circuit.
2.
CHECK ADAS CONTROL UNIT GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the ADAS control unit connector.
3.
Check for continuity between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the ADAS control unit ground circuit.
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
ADAS control unit
Ground
Ignition
switch
Connector
Terminal
B61
16
OFF
0 V
ON
Battery volt-
age
ADAS control unit
Ground
Continuity
Connector
Terminal
B61
6
Existed
DAS
ADAS CONTROL UNIT
DAS-63
< REMOVAL AND INSTALLATION >
[ADAS CONTROL UNIT]
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REMOVAL AND INSTALLATION
ADAS CONTROL UNIT
Removal and Installation
INFOID:0000000006223494
REMOVAL
1.
Remove the luggage side lower finisher (LH). Refer to
INT-36, "LUGGAGE SIDE LOWER FINISHER :
.
2.
Disconnect ADAS control unit connector.
3.
Remove mounting bolts from ADAS control unit.
4.
Remove ADAS control unit.
REMOVAL
Install in the reverse order of removal.
DAS-64
< PRECAUTION >
[DCA]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006223495
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precautions For Harness Repair
INFOID:0000000006223496
ITS communication uses a twisted pair line. Be careful when repairing it.
• Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
SKIB8766E
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