Infiniti QX56 (Z62). Manual — part 16
U1010 CONTROL UNIT (CAN)
ADP-57
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000006248340
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006248341
1.
REPLACE DRIVER SEAT CONTROL UNIT
When DTC [U1010] is detected, replace driver seat control unit.
>> Replace driver seat control unit.
DTC
No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial diagnosis of CAN con-
troller of driver seat control unit.
Driver seat control unit
ADP-58
< DTC/CIRCUIT DIAGNOSIS >
B2112 SLIDING MOTOR
B2112 SLIDING MOTOR
DTC Logic
INFOID:0000000006248342
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
STEP 1
Turn ignition switch ON.
>> GO TO 2.
2.
STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES
>> Perform diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006248343
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnostic result” with CONSULT-III.
3.
Erase the DTC.
4.
Perform DTC confirmation procedure. Refer to
.
Is the DTC displayed again?
YES
>> GO TO 2.
NO
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
2.
CHECK SLIDING MOTOR CIRCUIT (POWER SHORT)
1.
Turn ignition switch OFF.
2.
Disconnect sliding motor and driver seat control unit connector.
3.
Check voltage between sliding motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1.
Connect driver seat control unit connector.
2.
Check voltage between driver seat control unit harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2112
SEAT SLIDE
The driver seat control unit detects the output of slid-
ing motor output terminal for 0.1 second or more
even if the sliding switch is not input.
• Driver seat control unit
• Slide motor harness is shorted
(+)
(-)
Voltage (V)
(Approx.)
Sliding motor
Connector
Terminals
B461
34
Ground
0
38
B2112 SLIDING MOTOR
ADP-59
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace driver seat control unit.
4.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
(+)
(-)
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminals
B451
34
Ground
0
38
ADP-60
< DTC/CIRCUIT DIAGNOSIS >
B2113 RECLINING MOTOR
B2113 RECLINING MOTOR
DTC Logic
INFOID:0000000006248344
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
STEP 1
Turn ignition switch ON.
>> GO TO 2.
2.
STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES
>> Perform diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006248345
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnostic result” with CONSULT-III.
3.
Erase the DTC.
4.
Perform DTC confirmation procedure. Refer to
.
Is the DTC displayed again?
YES
>> GO TO 2.
NO
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
2.
CHECK RECLINING MOTOR CIRCUIT (POWER SHORT)
1.
Turn ignition switch OFF.
2.
Disconnect reclining motor and driver seat control unit connector.
3.
Check voltage between reclining motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1.
Connect driver seat control unit connector.
2.
Check voltage between driver seat control unit harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2113
SEAT RECLINING
The driver seat control unit detects the output of re-
clining motor output terminal for 0.1 second or more
even if the reclining switch is not input.
• Driver seat control unit
• Reclining motor harness is short-
ed
(+)
(-)
Voltage (V)
(Approx.)
Reclining motor
Connector
Terminals
B454
35
Ground
0
39
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