Nissan Pathfinder (2009 year). Instruction — part 586
SEC-110
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
Control part
Fail-safe in operation
Cooling fan
• Turns ON the cooling fan relay when the ignition switch is turned ON
• Turns OFF the cooling fan relay when the ignition switch is turned OFF
Control part
Fail-safe in operation
Headlamp
• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp (LH/RH) high relays OFF
• Parking lamps
• License plate lamps
• Tail lamps
• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper
• The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT mode and the front wiper
motor is operating.
Rear window defogger
Rear window defogger relay OFF
A/C compressor
A/C relay OFF
Front fog lamps (if equipped)
Front fog lamp relay OFF
Ignition switch
Ignition relay
Tail lamp relay
ON
ON
—
OFF
OFF
—
Ignition switch
Front wiper switch
Auto stop signal
ON
OFF
Front wiper stop position signal cannot be
input 10 seconds.
ON
The signal does not change for 10 seconds.
2009 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-111
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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DTC Index
INFOID:0000000004432091
NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions that are detected now
• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It
increases like 0
→
1
→
2 ··· 38
→
39 after returning to the normal condition whenever IGN OFF
→
ON. It is
fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is
detected again in the process.
CONSULT-III display
Fail-safe
TIME
NOTE
Refer to
No DTC is detected.
further testing
may be required.
—
—
—
—
U1000: CAN COMM CIRCUIT
×
CRNT
1 – 39
2009 Pathfinder
SEC-112
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
SYMPTOM DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS
Symptom Table
INFOID:0000000003938493
NOTE:
• Before performing the diagnosis in the following table, check “
”.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• Engine cranking is enabled when the shift lever is in the "Park" position, and in the "Neutral" position only if
the brake pedal is depressed.
• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
• Engine start function is ON when setting on CONSULT-III.
• Mechanical key is not inserted in key cylinder.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.
Symptom
Diagnosis/service procedure
Reference
page
Ignition switch does not turn on with Intelligent Key.
[green "KEY" lamp is displayed]
1.
Check steering lock solenoid.
2.
Replace Intelligent Key unit.
Ignition switch does not turn on with Intelligent Key.
["KEY" lamp does not display]
1.
Check Intelligent Key unit power supply and ground circuit.
2.
Check ignition knob switch.
3.
Check key switch (BCM input).
4.
Check key switch (Intelligent Key unit input).
5.
Replace Intelligent Key unit.
6.
Check green "KEY" indicator.
7.
Check red "KEY" indicator.
Ignition switch does not turn on with Intelligent Key.
[red "KEY" lamp is displayed]
1a.
Check inside key antenna 1 (instrument panel).
1b.
Check inside key antenna 2 (luggage compartment).
1c.
Check inside key antenna 3 (center console).
2.
Replace Intelligent Key unit.
Ignition switch does not turn on with mechanical key
1.
Check key switch (BCM input).
2.
Check key switch (Intelligent Key unit input).
Engine cannot be cranked with transmission in "Park"
or in "Neutral" position with brake pedal depressed
1.
Check transmission signal.
2.
Check stop lamp switch.
"P-SHIFT" indicator does not operate properly
1.
Check "P-SHIFT" indicator.
2009 Pathfinder
VEHICLE SECURITY SYSTEM SYMPTOMS
SEC-113
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
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VEHICLE SECURITY SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000003938494
*: Check the system is in the armed phase.
Procedure
Diagnostic procedure
Refer to page
Symptom
1
Vehicle security sys-
tem cannot be set by
····
Door switch
Check door switch (LF, RF, LR, RR, back)
Glass ajar switch
Check glass ajar switch
Intelligent Key
Check Intelligent Key system
Key cylinder switch
Check key cylinder switch
—
Check Intermittent Incident
Security indicator does not turn ON.
Check vehicle security indicator
Check Intermittent Incident
2
* Vehicle security
system does not
sound alarm when ····
Any door is opened.
Check door switch (LF, RF, LR, RR, back)
Glass ajar switch
Check glass ajar switch
—
Check Intermittent Incident
3
Vehicle security
alarm does not acti-
vate.
Horn alarm
Check horn switch
Check Intermittent Incident
4
Vehicle security sys-
tem cannot be can-
celed by ····
Intelligent Key
Check Intelligent Key system
Key cylinder switch
Check key cylinder switch
—
Check Intermittent Incident
2009 Pathfinder
SEC-114
< SYMPTOM DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS
Symptom Table
INFOID:0000000003938495
NOTE:
• Before performing the diagnosis in the following table, check “
”.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column
in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
• Mechanical key is not inserted into key cylinder.
• Ignition knob switch is not depressed.
Symptom
Diagnosis/service procedure
Reference page
Security indicator does not turn ON or flash.
1. Check vehicle security indicator
2. Check Intermittent Incident
2009 Pathfinder
PRE-INSPECTION FOR DIAGNOSTIC
SEC-115
< ON-VEHICLE MAINTENANCE >
[WITH INTELLIGENT KEY SYSTEM]
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ON-VEHICLE MAINTENANCE
PRE-INSPECTION FOR DIAGNOSTIC
Basic Inspection
INFOID:0000000003938496
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 basic inspection 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 the vehicle security operation check
after basic inspection.
1.
CHECK DOOR LOCK OPERATION
1.
Check the door lock for normal operation with the Intelligent Key controller and door request switch.
Successful door lock operation with the Intelligent Key and request SW indicates that the remote keyless
entry receiver and inside key antenna required for engine start are functioning normally.
Identify the malfunctioning point by referring to the DLK section if the door cannot be unlocked.
Can the door be locked with the Intelligent Key and door request switch?
YES
>> GO TO 2
NO
>> Refer to
.
2.
CHECK ENGINE STARTING
1.
Checks that the engine starts when operating the Intelligent Key.
Does the engine start?
YES
>> GO TO 3
NO
>> Refer to
.
3.
CHECK STEERING LOCKING
1.
Does the steering lock when operating door switch after switching the power supply from ON position (or
ACC position) to LOCK position?
If door switch is malfunctioning, BCM cannot lock the steering. If BCM does not detect DTC, steering lock
unit is normal.
Does steering lock?
YES
>> GO TO 4
NO
>> Refer to
.
4.
CHECK IGNITION KNOB SWITCH OPERATION
1.
Press ignition knob to check switch operation.
Does the combination meter display any message?
YES
>> GO TO 5
NO
>> Refer to
SEC-47, "Ignition Knob Switch Check"
.
5.
CHECK VEHICLE SECURITY SYSTEM
1.
Check the vehicle security system for normal operation.
The vehicle security function can operate only when the door lock and power distribution functions are
operating normally.
Therefore, it is easy to identify any factor unique to the vehicle security by performing the vehicle security
operation check after this basic inspection.
>> Refer to
SEC-115, "Vehicle Security Operation Check"
Vehicle Security Operation Check
INFOID:0000000003938497
1.
INSPECTION START
Turn ignition switch “OFF”.
NOTE:
Before starting operation check, open front windows.
2009 Pathfinder
SEC-116
< ON-VEHICLE MAINTENANCE >
[WITH INTELLIGENT KEY SYSTEM]
PRE-INSPECTION FOR DIAGNOSTIC
>> GO TO 2
2.
CHECK SECURITY INDICATOR LAMP
1.
Lock doors using Intelligent Key or mechanical key.
2.
Check that security indicator lamp illuminates for 30 seconds.
Security indicator lamp should illuminate.
OK
>> GO TO 3
NG
>> Perform diagnosis and repair. Refer to
.
3.
CHECK ALARM FUNCTION
1.
After 30 seconds, security indicator lamp will start to blink.
2.
Open any door before unlocking with Intelligent Key or mechanical key, or open back door or glass hatch
without the presence of Intelligent Key.
Does the alarm function properly?
YES
>> GO TO 4
NO
>>
Check the following.
• The vehicle security system does not phase in alarm mode. Refer to
.
• Alarm (horn and headlamps) does not operate. Refer to
4.
CHECK ALARM CANCEL OPERATION
Unlock any door using Intelligent Key or mechanical key.
Alarm (horn and headlamps) should stop.
OK
>> Inspection End.
NG
>> Check door lock function. Refer to
2009 Pathfinder
PRECAUTIONS
SEC-117
< PRECAUTION >
[WITH INTELLIGENT KEY SYSTEM]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004448902
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004448901
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″
LOCK
″
position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Use the Intelligent Key or mechanical key to turn the ignition switch to the
″
ACC
″
position. At this time, the
steering lock will be released.
3.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, return the ignition switch to the
″
LOCK
″
position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6.
Perform a self-diagnosis check of all control units using CONSULT-III.
2009 Pathfinder
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