Infiniti F50. Manual — part 225
AUTO TRUNK SYSTEM
BL-147
C
D
E
F
G
H
J
K
L
M
A
B
BL
Trunk Open Signal Check
EIS00561
1.
CHECK REMOTE CONTROL TRUNK OPEN SIGNAL
Check voltage between auto trunk control unit connector 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.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between BCM and auto trunk
control unit.
3.
CHECK AUTO TRUNK CONTROL UNIT OUTPUT SIGNAL
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
Remote controller trunk
switch ON
5
→
0
→
5
Other than above
5
PIIA2965E
1 (G/Y) – 5 (G/Y)
: Continuity should exist.
PIIA2966E
5 (G/Y) – Ground
: Approx. 5V
PIIA2965E
BL-148
AUTO TRUNK SYSTEM
Encoder Circuit Check
EIS00562
1.
CHECK ENCODER POWER SUPPLY
Check voltage between auto trunk motor connector B109 terminal 5 and ground.
OK or NG
OK
>> GO TO 3.
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 14 and auto trunk motor con-
nector B109 terminal 5.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Repair or replace harness between auto trunk control
unit and auto trunk motor.
3.
CHECK ENCODER GROUND
1.
Turn ignition switch OFF.
2.
Disconnect auto trunk motor connector.
3.
Check continuity between auto trunk motor connector B109 terminal 9 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
5 (L/R) – Ground
: Battery voltage
PIIA2967E
14 (L/R) – 5 (L/R)
: Continuity should exist.
PIIA2968E
9 (R/W) – Ground
: Continuity should exist.
PIIA2969E
AUTO TRUNK SYSTEM
BL-149
C
D
E
F
G
H
J
K
L
M
A
B
BL
4.
CHECK ENCODER GROUND CIRCUIT
1.
Disconnect auto trunk control unit.
2.
Check continuity between auto trunk control unit connector B110 terminal 16 and auto trunk motor con-
nector B109 terminal 9.
OK or NG
OK
>> Replace auto trunk control unit.
NG
>> Repair or replace harness between auto trunk control
unit and auto trunk motor.
5.
CHECK ENCODER SIGNAL
1.
Connect auto trunk motor connector.
2.
Turn ignition switch ON.
3.
Check the signal between auto trunk control unit connector and ground with oscilloscope.
OK or NG
OK
>> Encoder function is OK.
NG
>> GO TO 6.
6.
CHECK ENCODER CIRCUIT
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 15 and auto trunk motor con-
nector B109 terminal 8.
OK or NG
OK
>> Replace auto trunk motor.
NG
>> Repair or replace harness between auto trunk control
unit and auto trunk motor.
16 (R/W) – 9 (R/W)
: Continuity should exist.
PIIA2970E
Connector
Terminals (Wire color)
Condition
Signal
(Reference value)
(+)
(-)
B110 15
(Y)
Ground
trunk motor
operation
PIIA2971E
OCC3383D
15 (Y) – 8 (Y)
:Continuity should exist.
PIIA2972E
BL-150
VEHICLE SECURITY (THEFT WARNING) SYSTEM
VEHICLE SECURITY (THEFT WARNING) SYSTEM
PFP:28491
Component Parts Harness Connector Location
EIS003Q3
PIIB0199E
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