Infiniti Q45. Manual — part 219
AUTO TRUNK SYSTEM
BL-145
C
D
E
F
G
H
J
K
L
M
A
B
BL
Trunk Motor Check
NIS000WF
1.
MOTOR OPERATION CHECK
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Replace auto trunk control unit.
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect auto trunk control unit and auto trunk motor connectors.
3.
Check continuity between auto trunk control unit connector B111 terminals 20, 21 and auto trunk motor
connector B109 terminals 6, 7.
4.
Check continuity between auto trunk motor connector B109 ter-
minals 6, 7 and ground.
OK or NG
OK
>> Replace auto trunk motor.
NG
>> Repair or replace harness.
Clutch Solenoid Check
NIS000WG
1.
CHECK CLUTCH SOLENOID POWER SUPPLY
Check voltage between auto trunk motor connector B109 terminal 10
and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
20A fuse [No.15, located in fuse block (J/B) No.1]
●
Harness for open or short between auto trunk motor
and fuse.
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B111
20 (G/W)
Ground
Trunk is closed
0
Trunk is opened
Battery voltage
21 (L/W)
Trunk is closed
Battery voltage
Trunk is opened
0
PIIA2946E
20 (G/W) – 7 (G/W)
: Continuity should exist.
21 (L/W) – 6 (L/W)
: Continuity should exist.
6 (L/W) – Ground
: Continuity should not exist.
7 (G/W) – Ground
: Continuity should not exist.
PIIB0246E
10 (PU) – Ground
: Battery voltage
PIIA2947E
BL-146
AUTO TRUNK SYSTEM
2.
CHECK CLUTCH SOLENOID SIGNAL
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> Clutch solenoid system is OK.
NG
>> GO TO 3.
3.
CHECK HARNESS CONTINUITY
1.
Disconnect auto trunk control unit and auto trunk motor connector.
2.
Check continuity between auto trunk control unit connector B110
terminal 13 and auto trunk motor connector B109 terminal 3.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Repair or replace harness.
Trunk Lid Close Switch Check
NIS000WH
1.
CHECK TRUNK LID CLOSE SWITCH SIGNAL
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> Trunk lid close switch is OK.
NG
>> GO TO 2.
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110 13
(L/OR)
Ground
Trunk auto operation
0
Other than above
Battery voltage
PIIA2948E
13 (L/OR) – 3 (L/OR)
: Continuity should exist.
PIIA2949E
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110
8 (W/R)
Ground
Trunk lid close switch
pressed (ON)
0
Other than above (OFF)
5
PIIB0190E
AUTO TRUNK SYSTEM
BL-147
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 close switch connector.
3.
Check continuity between auto trunk control unit connector B110 terminal 8 and trunk lid close switch con-
nector B309 terminal 2.
4.
Check continuity between auto trunk control unit connector B110
terminal 8 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
CHECK TRUNK LID CLOSE SWITCH
Check continuity between trunk lid close switch terminals 1 and 2.
OK or NG
OK
>> GO TO 4.
NG
>> Replace trunk lid close switch.
4.
TRUNK LID CLOSE SWITCH GROUND CIRCUIT CHECK
Check continuity between trunk lid close switch connector B309 terminal 1 and ground.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Repair or replace harness.
8 (W/R) – 2 (W/R)
: Continuity should exist.
8 (W/R) – Ground
: Continuity should not exist.
PIIB0247E
Terminals
Condition
Continuity
1
2
Trunk lid switch pressed (ON)
Yes
Other than above
No
PIIB0191E
1 (B) – Ground
: Continuity should exist.
PIIB0192E
BL-148
AUTO TRUNK SYSTEM
Weather Strip Detection Switch System Check
NIS000WI
1.
CHECK WEATHER STRIP DETECTION SWITCH SIGNAL
Check voltage between auto trunk control unit connector and ground.
OK or NG
OK
>> Weather strip detection 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 10 and auto trunk motor con-
nector B109 terminal 1.
4.
Check continuity between auto trunk control unit connector B110
terminal 10 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between auto trunk control
unit and auto trunk motor.
3.
CHECK GROUND CIRCUIT
Check continuity between trunk motor connector B109 terminal 4 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
B110 10
(Y/B)
Ground
Trunk lid fully is between
just before fully closed
position and fully closed
position (OFF)
5
Other than above
0
PIIA2954E
10 (Y/B) – 1 (Y/B)
: Continuity should exist.
10 (Y/B) – Ground
: Continuity should not exist.
PIIB0248E
4 (B) – Ground
: Continuity should exist.
PIIA2956E
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