Nissan Pathfinder (2008 year). Manual — part 556
INTELLIGENT KEY UNIT
SEC-81
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
ALKIA0474GB
SEC-82
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ALKIA0926GB
INTELLIGENT KEY UNIT
SEC-83
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
ALKIA0927GB
SEC-84
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
ALKIA0928GB
INTELLIGENT KEY UNIT
SEC-85
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
ALKIA0929GB
SEC-86
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
Fail Safe
INFOID:0000000001689578
DTC Inspection Priority Chart
INFOID:0000000001689579
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC Index
INFOID:0000000001689580
NOTE:
Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-
tion switch OFF
→
ON again.
• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1
→
2
→
3...38
→
39 after returning to the normal condition whenever ignition switch OFF
→
ON. The counter
remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch
OFF
→
ON after returning to the normal condition if the malfunction is detected again.
Display contents of CONSULT-III
Fail-safe
Cancellation
B2013: STRG COMM 1
• Inhibits steering look unlocking
Erase DTC
B2552: INTELLIGENT KEY
• Inhibits steering look unlocking
• Inhibits engine cranking
(BCM)
• Fuel cut
(ECM)
Erase DTC
B2590: NATS MALFUNCTION
• Inhibits steering look unlocking
• Inhibits engine cranking
(BCM)
• Fuel cut
(ECM)
Erase DTC
Priority
DTC
1
• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
• B2552: INTELLIGENT KEY
2
• B2013: STRG COMM 1
• B2590: NATS MALFUNCTION
CONSULT display
Detection condition
Fail-safe
Diagnosis
No DTC is detected.
further testing
may be required.
—
—
—
U1000: CAN COMM CIRCUIT
Intelligent Key unit cannot receive CAN communi-
cation signal continuously for 2 seconds or more.
—
Check CAN communi-
cation system.
Refer to
U1010: CONTROL UNIT (CAN)
Intelligent Key unit detects internal CAN communi-
cation circuit malfunction.
—
Replace Intelligent Key
unit.
B2013: STRG COMM 1
The ID verification result between Intelligent key
unit and steering lock solenoid are NG. Or Intelligent
Key unit cannot communicate with steering lock so-
lenoid.
×
Perform steering lock
unit ID registration with
CONSULT-III
B2552: INTELLIGENT KEY
Intelligent Key unit internal malfunction.
×
Replace Intelligent Key
unit.
B2590: NATS MALFUNCTION
The ID verification result between Intelligent key
unit and BCM are NG. Or Intelligent Key unit cannot
communicate with BCM.
×
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-87
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference Value
INFOID:0000000001689581
VALUES ON THE DIAGNOSIS TOOL
.
TERMINAL LAYOUT
.
Fail Safe
INFOID:0000000001689582
DTC Index
INFOID:0000000001689583
SEC-88
< 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:0000000001689584
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.
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