Nissan Pathfinder (2008 year). Manual — part 551
POWER SUPPLY AND GROUND CIRCUIT
SEC-41
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT : Diagnosis Procedure
INFOID:0000000001689560
DLK-46, "INTELLIGENT KEY UNIT : Diagnosis Procedure"
.
BCM
BCM : Diagnosis Procedure
INFOID:0000000001689561
SEC-42
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
KEY CYLINDER SWITCH
KEY CYLINDER SWITCH
Description
INFOID:0000000001728777
The main power window and door lock/unlock switch detects condition of the door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
INFOID:0000000001728778
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check "KEY CYL LK-SW" AND "KEY CYL UN-SW" in DATA MONITOR mode for “POWER DOOR LOCK
SYSTEM” with CONSULT-III.
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001728779
1.
CHECK DOOR KEY CYLINDER SWITCH LH
With CONSULT-III
Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode with CONSULT–III.
• When key inserted in left front key cylinder is turned to LOCK:
• When key inserted in left front key cylinder is turned to UNLOCK:
Without CONSULT-III
Check voltage between main power window and door lock/unlock
switch connector D7 terminals 4, 6 and ground.
Is the inspection result normal?
YES
>> Key cylinder switch signal is OK.
NO
>> GO TO 2.
2.
CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect front door lock assembly LH (key cylinder switch).
Monitor item
Condition
KEY CYL LK-SW
Lock
: ON
Neutral / Unlock
: OFF
KEY CYL UN-SW
Unlock
: ON
Neutral / Lock
: OFF
KEY CYL LK-SW
: ON
KEY CYL UN-SW
: ON
Connector
Terminals
Condition of left front key cylinder
Voltage (V)
(Approx.)
(+)
(–)
D7
4
Ground
Neutral/Unlock
5
Lock
0
6
Neutral/Lock
5
Unlock
0
LIIA0566E
KEY CYLINDER SWITCH
SEC-43
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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3.
Check continuity between front door lock assembly LH (key cyl-
inder switch) connector (A) D14 terminal 4 and body ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK DOOR KEY CYLINDER SWITCH LH
Check continuity between front door lock assembly LH (key cylinder
switch) terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace front door lock assembly LH (key cylinder switch). Refer to
4.
CHECK DOOR KEY CYLINDER HARNESS
Check continuity between main power window and door lock/unlock
switch connector (A) D7 terminals 4, 6 and front door lock assembly
LH (key cylinder switch) connector (B) D14 terminals 3, 5 and body
ground.
Is the inspection result normal?
YES
>> Replace main power window and door lock/unlock switch.
NO
>> Repair or replace harness.
Connector
Terminals
Continuity
D14
4 – Ground
Yes
ALKIA1186ZZ
Terminals
Condition
Continuity
3 – 4
Key is turned to LOCK or neutral.
No
Key is turned to UNLOCK.
Yes
4 – 5
Key is turned to UNLOCK or neutral.
No
Key is turned to LOCK.
Yes
ALKIA1183ZZ
Connector
Terminals
Connector
Terminals
Continuity
A: Main
power win-
dow and
door lock/
unlock
switch
4
B: Front
door lock
assembly
LH (key
cylinder
switch)
5
Yes
6
3
Yes
4, 6
Ground
No
ALKIA1184ZZ
SEC-44
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
GLASS HATCH AJAR SWITCH
GLASS HATCH AJAR SWITCH
Diagnosis Procedure
INFOID:0000000001733165
1.
CHECK GLASS HATCH AJAR SWITCH INPUT SIGNAL
With CONSULT-III
Check glass hatch ajar switch ("TRNK OPN MNTR") in DATA MONITOR mode with CONSULT–III.
• When glass hatch is open:
• When glass hatch is closed:
Without CONSULT-III
Check voltage between BCM connector M19 terminal 42 and ground.
Is the inspection result normal?
YES
>> System is OK.
NO
>> GO TO 2
2.
CHECK GLASS HATCH AJAR SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM and glass hatch ajar switch.
3.
Check continuity between BCM connector M19 terminal 42 and glass hatch ajar switch connector D503
terminal 1 (+) .
4.
Check continuity between glass hatch ajar switch connector
D503 terminal 1 (+) and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GLASS HATCH AJAR SWITCH
Check continuity between glass hatch ajar switch connector terminal
1 and ground.
Is the inspection result normal?
YES
>> Check glass hatch ajar switch case ground condition.
NO
>> Replace glass hatch ajar switch.
TRNK OPN MNTR
: ON
TRNK OPN MNTR
: OFF
Connector
Item
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
M19
BCM
42
Ground
Open
↓
Closed
0
↓
Battery voltage
LIIA1149E
42 - 1 (+)
: Continuity should exist.
1 (+) - Ground
: Continuity should not exist.
LIIA1150E
Terminals
Condition
Continuity
Glass hatch ajar
switch
1 – Ground
Open
Yes
Closed
No
ALKIA0668ZZ
IGNITION KNOB SWITCH
SEC-45
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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IGNITION KNOB SWITCH
Ignition Knob Switch Check
INFOID:0000000001728780
1.
CHECK IGNITION KNOB SWITCH
With CONSULT-III
Display “PUSH SW” on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch oper-
ation.
Without CONSULT-III
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key unit connector.
3.
Check voltage between Intelligent Key unit harness connector
M164 terminal 27 and ground.
Is the inspection result normal?
YES
>> Ignition knob switch is OK.
NO
>> GO TO 2.
2.
CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect key switch and ignition knob switch connector.
3.
Check voltage between key switch and ignition knob switch harness connector M66 terminal 1 and
ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace key switch and ignition knob switch
power supply circuit.
3.
CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 1 and 2.
Monitor item
Condition
PUSH SW
Ignition switch is pushed: ON
Ignition switch is released: OFF
Connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
M164
27
Ground
Ignition switch is
pushed
Battery voltage
Ignition switch is re-
leased
0
WIIA1175E
1 - Ground
: Battery voltage
ALKIA1217ZZ
SEC-46
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
IGNITION KNOB SWITCH
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace key switch and ignition knob switch.
4.
CHECK IGNITION KNOB SWITCH CIRCUIT
1.
Check continuity between Intelligent Key unit harness connector (A) M164 terminal 27 and key switch and
ignition knob switch harness connector (B) M66 terminal 2.
2.
Check continuity between Intelligent Key unit harness connector
M164 terminal 27 and ground.
Is the inspection result normal?
YES
>> Check the condition of harness and harness connector.
NO
>> Repair or replace harness between Intelligent Key unit
and key switch and ignition knob switch.
Component
Terminals
Condition
Continuity
Ignition
knob switch
1
2
Ignition switch is pushed
Yes
Ignition switch is released
No
ALKIA1218ZZ
27 - 2
: Continuity should exist.
27 - Ground
: Continuity should not exist.
ALKIA1219ZZ
HORN FUNCTION
SEC-47
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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HORN FUNCTION
Symptom Table
INFOID:0000000001689566
HAZARD AND HORN REMINDER FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Work flow”. Refer to
• If the following symptoms” are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “ANSWER BACK FUNCTION” is ON when setting on CONSULT-III.
• Ignition switch is in OFF position.
• All doors are closed.
Symptom
Diagnosis/service procedure
Reference
page
Hazard reminder does not operate by request switch.
(Horn reminder operate.)
1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.
2.
Check hazard function.
3.
Check Intermittent Incident.
Hazard reminder does not operate by Intelligent Key.
(Horn reminder operate.)
1.
Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.
2.
Check hazard function.
3.
Check Intelligent Key battery inspection.
Horn reminder does not operate by request switch.
(Hazard reminder operate.)
1.
Check “ANSWER BACK WITH I-KEY LOCK” or “AN-
SWER BACK WITH I-KEY UNLOCK” setting in “WORK
SUPPORT”.
2.
Check Intelligent Key warning buzzer.
3.
Check Intermittent Incident.
Horn reminder does not operate by Intelligent Key.
(Hazard reminder operate.)
1.
Check “HORN WITH KEYLESS LOCK” setting in
“WORK SUPPORT”.
2.
Check horn function.
3.
Check Intermittent Incident.
SEC-48
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY INDICATOR
VEHICLE SECURITY INDICATOR
Description
INFOID:0000000001689567
• Vehicle security indicator is built in combination meter.
• NATS (Nissan Anti-Theft System) and vehicle security system conditions are indicated by blink or illumina-
tion of vehicle security indicator.
Component Function Check
INFOID:0000000001689568
1.
CHECK FUNCTION
1.
Perform “THEFT IND” in the “Active Test” mode with CONSULT-III.
2.
Check vehicle security indicator operation.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001689569
1.
SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-III
Check "THEFT IND” in "ACTIVE TEST" mode with CONSULT-III.
Without CONSULT-III
1.
Disconnect BCM.
2.
Check voltage between BCM harness connector M18 terminal
23 and ground.
Is the inspection result normal?
YES
>> Security indicator lamp is OK.
NO
>> GO TO 2
2.
SECURITY INDICATOR LAMP CHECK
Check security indicator lamp condition.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Replace security indicator lamp.
3.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM and security indicator lamp connector.
Test item
Description
THEFT IND
ON
Vehicle security indicator
ON
OFF
OFF
Connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(-)
M18
23
Ground
ON
0
OFF
Battery voltage
LIIA0523E
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