Infiniti Q45. Manual — part 220
AUTO TRUNK SYSTEM
BL-149
C
D
E
F
G
H
J
K
L
M
A
B
BL
4.
CHECK WEATHERSTRIP DETECTION SWITCH
Check continuity between auto trunk motor terminals 1 and 4.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Replace auto trunk motor.
Lid Full Up Position Switch Check
NIS000WJ
1.
CHECK LID FULL UP POSITION SWITCH SIGNAL
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> Lid full up position switch is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect auto trunk control unit and auto trunk motor connector.
3.
Check continuity between auto trunk control unit connector B110 terminal 11 and auto trunk motor con-
nector B109 terminal 2.
4.
Check continuity between auto trunk control unit connector B110
terminal 11 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
Terminals Condition
Continuity
1
4
Trunk lid fully is between just before
fully closed position and fully closed
position (OFF)
No
Other than above
Yes
PIIA2957E
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110
11 (L/Y)
Ground
Trunk lid fully opened
position (ON)
0
Other than above (OFF)
5
PIIA2958E
11 (L/Y) – 2 (L/Y)
: Continuity should exist.
11 (L/Y) – Ground
: Continuity should not exist.
PIIB0249E
BL-150
AUTO TRUNK SYSTEM
3.
GROUND CIRCUIT CHECK
Check continuity between auto trunk motor connector B109 terminal 4 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK LID FULL UP POSITION SWITCH
Check continuity between auto trunk motor terminals 2 and 4.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Replace auto trunk motor.
Trunk Lid Opener Switch Check
NIS000WK
1.
CHECK TRUNK LID OPENER SWITCH SIGNAL
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> Trunk lid opener switch is OK.
NG
>> GO TO 2.
4 (B) – Ground
: Continuity should exist.
PIIA2956E
Terminals
Condition
Continuity
2
4
Trunk lid fully opened position (ON)
Yes
Other than above
No
PIIA2960E
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110 6
(Y/R)
Ground
Trunk lid opener switch
pressed (ON)
0
Other than above (OFF)
5
PIIA2961E
AUTO TRUNK SYSTEM
BL-151
C
D
E
F
G
H
J
K
L
M
A
B
BL
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect auto trunk control unit and trunk lid opener switch connector.
3.
Check continuity between auto trunk control unit connector B110 terminal 6 and trunk lid and fuel lid
opener switch connector D9 terminal 3.
4.
Check continuity between auto trunk control unit connector B110
terminal 6 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK TRUNK LID OPENER SWITCH GROUND CIRCUIT
Check continuity between trunk lid and fuel lid opener switch connector D9 terminal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK TRUNK LID OPENER SWITCH
Check continuity between trunk lid opener switch terminals 2 and 3.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Replace trunk lid opener switch.
6 (Y/R) – 3 (Y/R)
: Continuity should exist.
6 (Y/R) – Ground
: Continuity should not exist.
PIIB0193E
2 (B) – Ground
: Continuity should exist.
PIIB0194E
Terminals Condition
Continuity
2
3
Trunk lid opener switch pressed (ON)
Yes
Other than above (OFF)
No
PIIB0195E
BL-152
AUTO TRUNK SYSTEM
Trunk Open Signal Check
NIS000WL
1.
CHECK ELECTRONIC KEY TRUNK OPENING SIGNAL
Check voltage between auto trunk control unit connector B110 terminal 5 and ground.
OK or NG
OK
>> Trunk open signal is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM and auto trunk control unit connector.
3.
Check continuity between BCM connector M4 terminal 1 and auto trunk control unit connector B110 termi-
nal 5.
4.
Check continuity between BCM connector M4 terminal 1 and
ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK AUTO TRUNK CONTROL UNIT OUTPUT SIGNAL
1.
Connect auto trunk control unit connector.
2.
Check voltage between auto trunk control unit connector B110 terminal 5 and ground.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace auto trunk control unit.
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110
5 (G/Y)
Ground
Trunk button on electronic
key ON
5
→
0
→
5
Other than above
5
PIIA2965E
1 (G/Y) – 5 (G/Y)
: Continuity should exist.
1 (G/Y) – Ground
: Continuity should not exist.
PIIB0251E
5 (G/Y) – Ground
: Approx. 5V
PIIA2965E
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