Infiniti G37 Coupe. Manual — part 989
PCS
POWER DISTRIBUTION SYSTEM
PCS-125
< SYMPTOM DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
SYMPTOM DIAGNOSIS
POWER DISTRIBUTION SYSTEM
Symptom Table
INFOID:0000000001728268
The engine start function, door lock function, power distribution system and NATS-IVIS/NMS in the Intelligent
Key system are closely related to each other regarding control. Narrow down the functional area in question
by performing following table to identify which function is malfunctioning. The vehicle security function can
operate only when the door lock and power distribution system are operating normally. Therefore, it is easy to
identify any factor unique to the vehicle security system by performing following table.
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion.
NOTE:
Before starting vehicle security system operation check, the following condition are met.
• Open front windows
• Turn ignition switch OFF
• Pull out lntelligent Key from key slot.
NO.
Function
Operation condition
Symptom
Diagnostic Item
Reference
page
1
INTELLIGENT
KEY SYSTEM/
DOOR LOCK
FUNCTION
Lock/unlock door with door re-
quest switch.
(Intelligent Key is into the out-
side key antenna detection ar-
ea)
Door does not lock/unlock
—
2
POWER DIS-
TRIBUTION
FUNCTION
Press push-button ignition
switch under the following con-
dition.
A/T models
• A/T selector lever position is
in P or N position
• Do not depress brake pedal
M/T models
• Do not depress clutch pedal
Push-button ignition switch is
not operated
—
3
INTELLIGENT
KEY SYSTEM/
ENGINE START
FUNCTION
Start engine with Intelligent Key
into the vehicle (inside key an-
tenna detection area)
Engine can not start with Intel-
ligent Key
—
4
Open the door after ignition
switch turn NO to OFF.
Steering is not locked
—
5
INFINITI VEHI-
CLE IMMOBI-
LIZEER
SYSTEM-NATS
FUNCTION
Start engine with Intelligent Key
into the key slot.
Engine can not start (Intelli-
gent Key into the key slot)
—
6
Insert Intelligent Key into the
keyslot.
Keyslot indicator is not illumi-
nate
—
PCS-126
< SYMPTOM DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
POWER DISTRIBUTION SYSTEM
7
VEHICLE SE-
CURITY SYS-
TEM
Lock all doors with Intelligent
Key or door request switch
Vehicle security system can
not be set
—
Lock all doors with Intelligent
Key or door request switch
Security indicator does not
turn ON
—
In the armed phase, open the
door
Vehicle security alarm does
not activate
Horn
Head lamp
When alarm sound, press Intel-
ligent Key button
Vehicle security system can
not be canceled
—
When alarm sound, press door
request switch
—
8
POWER DIS-
TRIBUTION
FUNCTION
Press push-button ignition
switch under the following con-
dition.
A/T models
• A/T selector lever position is
in P or N position
• Do not depress brake pedal
M/T models
• Do not depress clutch pedal
Push-button ignition switch
position indicator does not
turn on
—
NO.
Function
Operation condition
Symptom
Diagnostic Item
Reference
page
PCS
PUSH-BUTTON IGNITION SWITCH DOES NOT OPERATE
PCS-127
< SYMPTOM DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
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PUSH-BUTTON IGNITION SWITCH DOES NOT OPERATE
Description
INFOID:0000000001728271
• Before performing the diagnosis in the following table, check “Work Flow”. Refer to
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
Conditions of Vehicle (Operating Conditions)
• “ENGINE START BY I-KEY” in “WORK SUPPORT” is ON when setting on CONSULT-III.
• Intelligent Key is not inserted in key slot.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Diagnosis Procedure
INFOID:0000000001728272
1.
CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to
PCS-71, "Component Function Check"
Is the inspection normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning parts.
2.
CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 1.
PCS-128
< SYMPTOM DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR
PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR
Description
INFOID:0000000001728269
• Before performing the diagnosis in the following table, check “Work Flow”. Refer to
.
Diagnosis Procedure
INFOID:0000000001728270
1.
CHECK PUSH-BUTTON IGNITION SWITCH INDICATOR
Check push-button ignition switch indicator.
Refer to
PCS-73, "Component Function Check"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace the malfunctioning parts.
2.
CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 1.
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