Infiniti F50. Manual — part 233
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-179
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G
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4–2 CHECK DOOR KEY CYLINDER UNLOCK SWITCH
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK SIGNAL)
With CONSULT-II
Check front door key cylinder switch (driver side) “KEY CYL UN-DR” in “DATA MONITOR” mode with CON-
SULT-II.
Without CONSULT-II
Check voltage between driver door control unit (LCU01) connector
and ground.
OK or NG
OK
>> Front door key cylinder switch (driver side) (unlock) is
OK.
NG
>> GO TO 2.
“KEY CYL UN-DR” should be “ON” when key inserted
in driver door key cylinder was turned to unlock.
PIIA0353E
Connector
Terminal (wire color)
Key position
Voltage (V)
( + )
( – )
D8
9(PU/W)
Ground
Neutral/Lock
Approx.5
Unlock
0
PIIA2854E
BL-180
VEHICLE SECURITY (THEFT WARNING) SYSTEM
2.
CHECK DOOR KEY CYLINDER SWITCH
1.
Turn ignition switch “OFF”.
2.
Disconnect front door key cylinder switch (driver side) connector.
3.
Check continuity between front door key cylinder switch (driver
side) terminals.
OK or NG
OK
>> Check the following.
●
Front door key cylinder switch (driver side) ground cir-
cuit
●
Harness for open or short between driver door control
unit (LCU01) and front door key cylinder switch (driver side)
NG
>> Replace front door key cylinder switch (driver side).
Diagnostic Procedure 5
EIS003QF
CHECK TRUNK LID KEY UNLOCK SIGNAL
1.
CHECK TRUNK KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK SIGNAL)
With CONSULT-II
Check trunk lid key cylinder switch “TRUNK UNLK SW” in “DATA MONITOR” mode with CONSULT
−
II.
●
When key in key cylinder is at “NEUTRAL” position,
●
When key is “UNLOCK” position,
Without CONSULT-II
Check trunk lid key cylinder switch in Switch monitor mode.
Refer to Remote keyless entry system
.
OK or NG
OK
>> Trunk lid key cylinder switch is OK.
NG
>> GO TO 2.
2.
CHECK TRUNK KEY CYLINDER SWITCH (UNLOCK SWITCH)
1.
Turn ignition switch “OFF”.
2.
Disconnect trunk lid key cylinder switch connector.
3.
Check continuity between trunk lid key cylinder switch terminals.
OK or NG
OK
>> Check the following.
●
Trunk lid key cylinder switch ground circuit
●
Harness for open or short between trunk lid key cylin-
der switch and BCM
NG
>> Replace trunk lid key cylinder switch.
Terminal
Condition
Continuity
1
−
2
Neutral/Lock
No
Unlock
Yes
PIIB0204E
TRUNK UNLK SW: OFF
TRUNK UNLK SW: ON
PIIA0356E
Terminals
Condition
Continuity
1 - 2
Neutral
No
Unlocked
Yes
PIIB0202E
VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-181
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BL
Diagnostic Procedure 6
EIS003QG
CHECK THEFT WARNING HORN ALARM
1.
CHECK VEHICLE SECURITY HORN ALARM OPERATION
With CONSULT-II
●
Check horn relay “ALARM RELAY” in “ACTIVE TEST” mode with CONSULT-II.
●
Perform operation shown on display.
Without CONSULT-II
1.
Turn ignition switch “OFF”.
2.
Disconnect BCM connector.
3.
Apply ground to BCM connector E204 terminal 127 (G/W).
OK or NG
OK
>> Horn alarm is OK.
NG
>> GO TO 2.
2.
CHECK SECURITY HORN RELAY
Check horn relay condition.
OK or NG
OK
>> GO TO 3.
NG
>> Replace horn relay.
Theft warning horn alarm should operate.
PIIA0358E
Does horn alarm activate?
PIIA0359E
BL-182
VEHICLE SECURITY (THEFT WARNING) SYSTEM
3.
CHECK POWER SUPPLY FOR HORN RELAY
1.
Disconnect horn relay connector.
2.
Check voltage between horn relay connector E3-5 terminal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check the following.
●
15A fuse [No. 56, located in the fuse, fusible link and
relay block (J/B)]
●
Harness for open or short between horn relay and
fuse
4.
CHECK HORN RELAY CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM connector E204 terminal 127 (G/W) and horn relay connector E3-5 termi-
nals 1 (G/W).
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness.
5.
CHECK HORN RELAY CIRCUIT
1.
Disconnect horn relay and security horn connector.
2.
Check continuity between horn relay connector E3-5 terminal 3 and horn connector E43,E63 terminal 1
(G,G/OR).
OK or NG?
OK
>> Replace horn.
NG
>> Repair or replace harness.
Battery voltage should exist.
PIIA3248E
Continuity should exist
PIIA3246E
3 - 1 (G)
:Continuity should exist.
3 - 1 (G/OR)
:Continuity should exist.
PIIA3247E
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