Infiniti QX56 (Z62). Manual — part 289
DAS
U1517 ACCELERATOR PEDAL ACTUATOR CAN 3
DAS-193
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
U1517 ACCELERATOR PEDAL ACTUATOR CAN 3
DTC Logic
INFOID:0000000006228167
DTC DETECTION LOGIC
NOTE:
If DTC “U1517” 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 DCA system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U1517” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1517” detected as the current malfunction?
YES
>> Refer to
DAS-193, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228168
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1517” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-182, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
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
U1517
(167)
APA CAN CIRC 3
ADAS control unit detects an error signal that is
received from accelerator pedal actuator via
CAN communication
Accelerator pedal actuator
DAS-194
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
U1520 4WD CAN 3
U1520 4WD CAN 3
DTC Logic
INFOID:0000000006228169
DTC DETECTION LOGIC
NOTE:
If DTC “U1520” 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 DCA system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U1520” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1520” detected as the current malfunction?
YES
>> Refer to
DAS-194, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228170
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1520” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-182, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
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
U1520
(176)
4WD CAN CIRC 3
ADAS control unit detects an error signal that is
received from transfer control unit via CAN
communication
Transfer control unit
DAS
POWER SUPPLY AND GROUND CIRCUIT
DAS-195
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
POWER SUPPLY AND GROUND CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006223648
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.
ACCELERATOR PEDAL ACTUATOR
ACCELERATOR PEDAL ACTUATOR : Diagnosis Procedure
INFOID:0000000006223649
1.
CHECK FUSES
Check if any of the following fuses are blown:
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT
Check voltage between accelerator pedal actuator harness connector and ground.
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
Signal name
Fuse No.
Battery power supply
33
DAS-196
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the accelerator pedal actuator power supply circuit.
3.
CHECK ACCELERATOR PEDAL ACTUATOR GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the accelerator pedal actuator connector.
3.
Check for continuity between accelerator pedal actuator harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the accelerator pedal actuator ground circuit.
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
Accelerator pedal actuator
Ground
Ignition
switch
Connector
Terminal
E66
1
OFF
Battery volt-
age
3
ON
Accelerator pedal actuator
Ground
Continuity
Connector
Terminal
E66
2
Existed
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