Infiniti QX56 (Z62). Manual — part 17
B2113 RECLINING MOTOR
ADP-61
< 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
35
Ground
0
39
ADP-62
< DTC/CIRCUIT DIAGNOSIS >
B2116 TILT MOTOR
B2116 TILT MOTOR
DTC Logic
INFOID:0000000006248346
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:0000000006248347
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 TILT MOTOR CIRCUIT (POWER SHORT)
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit and tilt motor connector.
3.
Check voltage between tilt motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK AUTOMATIC DRIVER POSITIONER CONROL UNIT OUTPUT SIGNAL
1.
Connect automatic drive positioner control unit connector.
2.
Check voltage between automatic drive positioner control unit harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2116
STEERING TILT
The automatic drive positioner control unit detects
the output of tilt motor output terminal for 0.1 second
or more even if the tilt switch is not input.
• Automatic drive positioner con-
trol unit
• Tilt motor harness is shorted
(+)
(-)
Voltage (V)
(Approx.)
Tilt motor
Connector
Terminals
M116
1
Ground
0
2
B2116 TILT MOTOR
ADP-63
< 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 automatic drive positioner control unit.
4.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
(+)
(-)
Voltage (V)
(Approx.)
Automatic drive positioner control unit
Connector
Terminals
M104
28
Ground
0
29
ADP-64
< DTC/CIRCUIT DIAGNOSIS >
B2128 UART COMMUNICATION LINE
B2128 UART COMMUNICATION LINE
Description
INFOID:0000000006248348
Driver seat control unit performs UART communication with the automatic drive positioner control unit using 1
communication lines. Driver seat control unit receives the operation signals of tilt & telescopic switch, door mir-
ror remote control switch, and the position signals of door mirror sensor from the automatic drive positioner
control unit and transmits the operation request signal.
DTC Logic
INFOID:0000000006248349
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
STEP 1
Turn ignition switch ON.
>> GO TO 2.
2.
PROCEDURE
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES
>> Perform diagnosis procedure. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006248350
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 UART COMMUNICATION LINE CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit and automatic drive positioner control unit connector.
3.
Check continuity between driver seat control unit harness connector and automatic drive positioner con-
trol unit harness connector.
4.
Check continuity between driver seat control unit harness connector and ground.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2128
UART COMM
The communication between driver seat control unit
and auto drive positioner control unit is interrupted for
a period of time.
• UART communication line
(UART communication line is
open or shorted)
• Driver seat control unit
• Automatic drive positioner
control unit
Driver seat control unit
Automatic drive positioner control unit
Continuity
Connector
Terminal
Connector
Terminal
B452
2
M75
8
Existed
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