Page 1009 of 4462
VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-195
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
Preliminary CheckNIS001PC
The system operation is canceled by turning ignition switch to “ACC” at any step between START and ARMED
in the following flow chart.
After performing preliminary check, go to symptom chart. Refer to BL-196, "
Trouble Diagnosis Symptom
Chart" .
PIIA6910E
Page 1010 of 4462

BL-196
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 December 2006 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001PD
*1: Make sure the system is in the armed phase. Procedure
Diagnostic procedure Refer to page
Symptom
1 Vehicle security
system cannot be
set by ···· Door switch Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-204
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-204
Key fob Check remote keyless entry. BL-54
Intelligent Key Check Intelligent Key.BL-86
— If the above systems are “OK”, replace BCM.BCS-15
Security indicator does not turn “ON”. Diagnostic Procedure 2 (Check security indicator lamp)
BL-203If the above systems are “OK”, replace BCM.BCS-15
2 *1 Vehicle secu-
rity system does
not alarm when
···· Any door is opened. Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197If the above systems are “OK”, replace BCM.BCS-15
3 Vehicle security
alarm does not
activate. Horn alarm
Diagnostic Procedure 4 (Check vehicle security horn alarm)
BL-204
Check horn function. BL-80
If the above systems are “OK”, replace BCM.BCS-15
Head lamp alarm Diagnostic Procedure 5 (Check head lamp alarm)
BL-204If the above systems are “OK”, replace BCM.BCS-15
4 Vehicle security
system cannot be
canceled by ···· Door outside key
Diagnostic Procedure 3 (Check door key cylinder switch)
BL-204
If the above systems are “OK”, check power window main switch. EI-35
Key fob Check remote keyless entry function.
BL-55If the above systems are “OK”, replace BCM.BCS-15
Intelligent Key Check Intelligent Key
BL-88If the above systems are “OK”, replace BCM.BCS-15
Page 1011 of 4462

VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-197
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
Diagnostic Procedure 1NIS001PE
1 – 1 DOOR SWITCH CHECK
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RR” and “DOOR SW-RL”) in “DATA MONITOR” mode
with CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector M3, B14 terminals and ground.
OK or NG
OK >> Door switch circuit is OK, and go to BL-199, "1 – 2 HOOD SWITCH CHECK" .
NG >> GO TO 2.
Monitor item Condition
DOOR SW-DR OPEN : ON
CLOSE : OFF
DOOR SW-AS OPEN : ON
CLOSE : OFF
DOOR SW-RR OPEN : ON
CLOSE : OFF
DOOR SW-RL OPEN : ON
CLOSE : OFF
PIIA6222E
Item Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (–)
Front door switch
driver side 62 (W)
Ground OPEN 0
CLOSE Battery voltage
Front door switch
passenger side 12 (P/B) OPEN 0
CLOSE Battery voltage
Rear door switch
LH 63 (P) OPEN 0
CLOSE Battery voltage
Rear door switch
RH 13 (P/L) OPEN 0
CLOSE Battery voltage
PIIA6223E
Page 1012 of 4462

BL-198
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 December 2006 FX35/FX45
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and door switches connector.
3. Check continuity between BCM connector B14 terminals 62, 63 and door switch connector B26, B46 terminal 1, and ground.
4. Check continuity between BCM connector M3 terminals 12, 13 and door switch connector B36, B206 terminal 1, and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR SWITCH
Check continuity between each door switch terminal 1 and ground
part of door switch.
OK or NG
OK >> GO TO 4.
NG >> Replace malfunctioning door switch. BCM – Front door switch (driver side)
62 (W) – 1 (W) : Continuity should exist.
BCM – Rear door switch LH
63 (P) – 1 (P) : Continuity should exist.
BCM – Ground
62 (W) – Ground : Continuity should not exist.
63 (P) – Ground : Continuity should not exist.
PIIA6225E
BCM – Front door switch (passenger side)
12 (P/B) – 1 (SB) : Continuity should exist.
BCM – Rear door switch RH
13 (P/L) – 1 (P) : Continuity should exist.
BCM – Ground
12 (P/B) – Ground : Continuity should not exist.
13 (P/L) – Ground : Continuity should not exist.
PIIA6224E
Terminal Condition Continuity
1 Ground part of
door switch Pushed No
Released Yes
PIIA3351E
Page 1013 of 4462

VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-199
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector M3, B14 terminals 12, 13, 62, 63 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
1 – 2 HOOD SWITCH CHECK
1. CHECK HOOD SWITCH
Check hood switch and hood fitting condition.
OK or NG
OK >> GO TO 2.
NG >> Adjust installation of hood switch.
2. CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-II
Check (“HOOD SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Hood switch is OK, and go to BL-201, "1 – 3 BACK
DOOR SWITCH CHECK" .
NG >> GO TO 3. 12 (P/B) – Ground : Battery voltage
13 (P/L) – Ground : Battery voltage
62 (W) – Ground : Battery voltage
63 (P) – Ground : Battery voltage
PIIA6223E
Monitor item Condition
HOOD SW OPEN : ON
CLOSE : OFF
PIIA7006E
Connector Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (-)
E9 56 (LG) Ground OPEN 0
CLOSE Battery voltage
PIIA6228E
Page 1014 of 4462
BL-200
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 December 2006 FX35/FX45
3. CHECK HOOD SWITCH
1. Turn ignition switch OFF.
2. Disconnect hood switch connector.
3. Check continuity between hood switch terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace hood switch.
4. CHECK IPDM E/R OUTPUT SIGNAL
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Check the following.
Hood switch ground circuit.
Harness for open or short between hood switch and
IPDM E/R.
NG >> Replace IPDM E/R
Terminals Condition Continuity
1 2 Pressed No
Released Yes
PIIA2498E
56 (LG) – Ground : Battery voltage
PIIA6228E
Page 1015 of 4462

VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-201
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
1 – 3 BACK DOOR SWITCH CHECK
1. CHECK BACK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and back door closure motor connector.
3. Check continuity between BCM connector B14 terminal 58 and back door closure motor connector D109 terminal 7.
4. Check continuity between BCM connector B14 terminal 58 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item Condition
BACK DOOR SW OPEN : ON
CLOSE : OFF
PIIA2488E
Connector Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (–)
B14 58 (L) Ground OPEN 0
CLOSE 9
PIIA6229E
58 (L) – 7 (L) : Continuity should exist.
58 (L) – Ground : Continuity should not exist.
PIIA6226E
Page 1016 of 4462
BL-202
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 December 2006 FX35/FX45
3. CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109
terminal 8 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK BACK DOOR SWITCH
Check continuity between back door closure motor D109 terminals 7
and 8.
OK or NG
OK >> GO TO 5.
NG >> Replace back door closure motor.
5. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector B14 terminal 58 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM. 8 (B) – Ground : Continuity should exist.
PIIA6170E
Terminals Back door condition Continuity
78 Open Yes
Close No
PIIA9934E
58 (L) – Ground : Approx. 9V
PIIA6229E