Nissan Maxima. Instruction — part 13
ADP-44
< DTC/CIRCUIT DIAGNOSIS >
B2116 TILT MOTOR
1. Connect automatic drive positioner control unit connector.
2. Check voltage between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace automatic drive positioner control unit. Refer to
ADP-170, "Removal and Installation"
4.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
>> INSPECTION END
(+)
(–)
Voltage (V)
(Approx.)
Automatic drive positioner control unit
Connector
Terminals
M67
28
Ground
0
29
B2128 UART COMMUNICATION LINE
ADP-45
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
B2128 UART COMMUNICATION LINE
Description
INFOID:0000000010051723
Driver seat control unit performs UART communication with the automatic drive positioner control unit using 1
communication line. Driver seat control unit receives the operation signals of ADP steering switch, door mirror
remote control switch and the position signals of tilt sensor, telescopic sensor and door mirror sensors from
the automatic drive positioner control unit and transmits the operation request signal.
DTC Logic
INFOID:0000000010051724
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT.
Is the DTC is detects?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010051725
Regarding Wiring Diagram information, refer to
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT.
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-41, "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.
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 automatic drive positioner control unit is interrupt-
ed 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 connector
Terminal
Automatic drive positioner control unit con-
nector
Terminal
Continuity
B203
15
M63
8
Yes
ADP-46
< DTC/CIRCUIT DIAGNOSIS >
B2128 UART COMMUNICATION LINE
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Repair or replace harness.
Driver seat control unit connector
Terminal
Ground
Continuity
B203
15
No
POWER SUPPLY AND GROUND CIRCUIT
ADP-47
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000010062176
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
DRIVER SEAT CONTROL UNIT
DRIVER SEAT CONTROL UNIT : Diagnosis Procedure
INFOID:0000000010051727
NOTE:
Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is con-
firmed with CONSULT.
Terminal No.
Signal name
Fuse and fusible link No.
1
Battery power supply
H
11
10
24
7
Terminals
Voltage
(Approx.)
(+)
(
−)
BCM
Ground
Connector
Terminal
M16
1
Battery voltage
M17
11
M18
24
BCM
Ground
Continuity
Connector
Terminal
M17
13
Yes
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