Infiniti QX56 (Z62). Manual — part 18
B2128 UART COMMUNICATION LINE
ADP-65
< 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
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
NO
>> Repair or replace harness or connector.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
2
Not existed
ADP-66
< DTC/CIRCUIT DIAGNOSIS >
B2130 EEPROM
B2130 EEPROM
DTC Logic
INFOID:0000000006248351
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:0000000006248352
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.
REPLACE DRIVER SEAT CONTROL UNIT
Replace driver seat control unit.
>> INSPECTION END
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2130
EEPROM
Driver seat control unit detected CPU malfunction.
Driver seat control unit
POWER SUPPLY AND GROUND CIRCUIT
ADP-67
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
POWER SUPPLY AND GROUND CIRCUIT
DRIVER SEAT CONTROL UNIT
DRIVER SEAT CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006248353
1.
CHECK FUSE
Check that the following fuse and fusible link are not fusing.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK DRIVER SEAT CONTROL UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK DRIVER SEAT CONTROL UNIT GROUND CIRCUIT
Check continuity between the driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
DRIVER SEAT CONTROL UNIT : Special Repair Requirement
INFOID:0000000006248354
1.
PERFORM ADDITIONAL SERVICE
Perform additional service when removing battery negative terminal.
>> Refer to
ADP-51, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMI-
AUTOMATIC DRIVE POSITIONER CONTROL UNIT
AUTOMATIC DRIVE POSITIONER CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006248355
NOTE:
Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is con-
firmed with CONSULT-III.
1.
CHECK FUSE
Check that the following fuse and fusible link are not fusing.
Signal name
Fuse No.
Battery power supply
K (50 A)
(+)
(-)
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminals
B451
33
Ground
Battery voltage
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
43
Existed
ADP-68
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit connector.
3.
Check voltage between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT GROUND CIRCUIT
Check continuity between the automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
AUTOMATIC DRIVE POSITIONER CONTROL UNIT : Special Repair Requirement
INFOID:0000000006248356
1.
PERFORM ADDITIONAL SERVICE
Perform additional service when removing battery negative terminal.
>> Refer to
ADP-51, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMI-
Signal name
Fuse No.
Battery power supply
K (50 A)
(+)
(-)
Voltage (V)
(Approx.)
Automatic drive positioner control unit
Connector
Terminals
M104
25
Ground
Battery voltage
Automatic drive positioner control unit
Ground
Continuity
Connector
Terminal
M104
30
Existed
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