2003 NISSAN TEANA Power

BL-90
INTELLIGENT KEY SYSTEM

Terminals and Reference Value for Steering Lock UnitBIS000X5
Terminals and Reference Value for BCMBIS000X6
Te r m i -
nalWire
ColorSignal DesignationSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Ignition
Knob
PositionOperation or Conditions
1 Y/B Battery power supply Input LOCK — Battery voltage
2L/YSteering lock unit power
supplyOutput LOCK — 5
3L/RSteering lock unit com-
munication signalInput/
OutputLOCKPress ignition knob with
Intelligent Key inside
vehicle.
Other than the above 5
4G/YSteering lock unit
ground—ON — 0
PIIB8449J
Te r m i -
nalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx.)
12 R/LFront door switch (Passenger
side)Input Door open (ON) → Close (OFF) 0 → Battery voltage
13 R/B Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
38 R Ignition switch InputIgnition switch is in ON or START posi-
tionBattery voltage
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 Y/R Battery power supply (Fuse) Input — Battery voltage
52 B Ground — — 0
55 W/BBattery power supply (Fusible
link)Input — Battery voltage
57 V/W Trunk room lamp switch Input Trunk lid open (ON) → Close (OFF) 0 → Battery voltage
62 SB Front door switch (Driver side) Input Door open (ON) → Close (OFF) 0 → Battery voltage
63 R/W Rear door switch LH Input Door open (ON) → Close (OFF) 0 → Battery voltage

BL-96
INTELLIGENT KEY SYSTEM

Trouble Diagnosis Symptom ChartBIS000XC
ALL FUNCTIONS OF THE INTELLIGENT KEY ARE NOT OPERATING
NOTE:

Before performing the diagnosis in the following table, check “Diagnosis Procedure”. Refer to BL-91,
"Diagnosis Procedure" .

Make sure 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 “Diagnoses service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Intelligent key function (I-KEY FUNCTION) is ON when setting on CONSULT-II. Refer to BL-94, "WORK
SUPPORT" .

Mechanical key is not inserted into ignition knob.

Ignition knob is not depressed.

All doors are closed.
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Diagnosis Procedure”. Refer to BL-91,
"Diagnosis Procedure" .

Make sure 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 “Diagnoses service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Intelligent key function (I-KEY FUNCTION) is ON when setting on CONSULT-II. Refer to BL-94, "WORK
SUPPORT" .

Mechanical key is not inserted into ignition knob.

Ignition knob is not depressed.

All doors are closed.
Symptom Diagnoses service procedure Reference page
All Intelligent Key function does not operate.1.Use CONSULT-II to check if the Intelligent Key has
been registeredBL-94
2.Check Intelligent Key unit power supply and ground
circuitBL-100
3. Check CAN communicationBL-100
4. Replace Intelligent Key unitBL-117
Symptom Diagnoses service procedure Reference page
Either one of the remote keyless entry function
do not operate.Replace Intelligent Key unitBL-117

INTELLIGENT KEY SYSTEM
BL-97
C
D
E
F
G
H
J
K
L
MA
B
BL

DOOR LOCK FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Diagnosis Procedure”. Refer to BL-91,
"Diagnosis Procedure" .

Make sure 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 “Diagnoses service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Intelligent key function (I-KEY FUNCTION) is ON when setting on CONSULT-II.

Mechanical key is not inserted into ignition knob.

Ignition knob is not depressed.

All doors are closed.
TRUNK OPEN FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Diagnosis Procedure”. Refer to BL-91,
"Diagnosis Procedure" .

Make sure 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 “Diagnoses service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Intelligent key function (I-KEY FUNCTION) is ON when setting on CONSULT-II.

Mechanical key is not inserted into ignition knob.

Ignition knob is not depressed.
Symptom Diagnoses service procedure Reference page
Door lock/unlock do not operate using request
switch operated.1.Check Intelligent Key unit power supply and ground
circuitBL-100
2. Check CAN communicationBL-100
3. Check door switchBL-105
4. Check key switch (Intelligent Key unit input)BL-101
5. Check ignition knob switchBL-103
6. Replace Intelligent Key unitBL-117
Door lock/unlock does not operate when
request switch (driver side) is operate.1. Check door request switchBL-1092. Check outside key antennaBL-112
3. Replace Intelligent Key unitBL-117
Door lock/unlock does not operate when
request switch (passenger side) is operate.1. Check door request switchBL-1092. Check outside key antennaBL-112
3. Replace Intelligent Key unitBL-117
Symptom Diagnoses service procedure Reference page
Trunk open function does not operate when
trunk opener request switch is operated.1. Check door request switchBL-109

2. Check outside key antennaBL-112
3. Replace Intelligent Key unitBL-117

BL-100
INTELLIGENT KEY SYSTEM

Check CAN Communication SystemBIS000XD
1. CHECK SELF-DIAGNOSTIC RESULTS
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
With CONSULT-II

Connect CONSULT-II, and turn ignition switch ON.

Touch “INTELLIGENT KEY” on “SELECT SYSTEM” screen.

Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.

Check display content in self-diagnostic results.
Displayed U1000?
Yes >> Inspection END.
No >> GO TO LAN-3, "
Precautions When Using CONSULT-II" .
Check Intelligent Key Unit Power Supply and Ground CircuitBIS000XE
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace Intelligent Key power supply circuit.
2. CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit connector M31 termi-
nal 12 (B) and ground.
OK or NG
OK >> Power supply and ground circuits are normal.
NG >> Repair or replace the Intelligent Key unit ground circuit.
ConnectorTerminal
(Wire color)Ignition knob position
M31(+) (–) OFF ACC ON
6 (G)
Ground0V 0V Battery voltage
11
(Y/B)Battery voltage Battery voltage Battery voltage
PIIB8793E
12 (B) - Ground : Continuity should exist.
MIIB0361E

INTELLIGENT KEY SYSTEM
BL-101
C
D
E
F
G
H
J
K
L
MA
B
BL

Check Key Switch (Intelligent Key Unit Input)BIS000XF
1. CHECK KEY SWITCH
With CONSULT-II
Display “KEY SW” on DATA MONITOR screen, and check if ON-
OFF display is linked to insertion of mechanical key in ignition knob.
OK or NG
OK >> Key switch is OK.
NG >> GO TO 2.
2. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Remove mechanical key from ignition knob.
2. Disconnect key switch connector.
3. Check voltage between key switch connector M20 terminal 3 (Y/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key switch power supply circuit.
3. CHECK KEY SWITCH OPERATION
Check continuity between key switch connector M20 terminal 3 and
8.
OK or NG
OK >> GO TO 4.
NG >> Replace key cylinder assembly (built-in key switch).KEY SW:
When key is inserted in ignition knob : ON
When key is removed in ignition knob : OFF
PIIB1359E
3 (Y/B) - Ground : Battery voltage
PIIB0938E
Connector Terminal Condition Continuity
M20 3 8Insert mechanical key
into ignition knob.Ye s
Remove mechanical key
from ignition knob.No
PIIB0942E

BL-102
INTELLIGENT KEY SYSTEM

4. CHECK KEY SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M31 terminal 7 (B/R) and key switch connector
M20 terminal 8 (B/R).
3. Check continuity between key switch connector M20 terminal 8
(B/R) and ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness between Intelligent Key unit
and key switch.
Check Key Switch (BCM Input)BIS000XG
1. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect key switch connector.
3. Check voltage between key switch connector M20 terminal 3 (Y/
B) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check harness between key switch and fuse.
2. CHECK KEY SWITCH
Check continuity between key switch as follows.
OK or NG
OK >> GO TO 3.
NG >> Replace key cylinder assembly (built-in key switch).7 (B/R) - 8 (B/R) : Continuity should exist.
8 (B/R) - Ground : Continuity should not exist.
PIIB0940E
3 (Y/B) – Ground : Battery voltage.
PIIB0941E
Connector Terminal Condition Continuity
M20 3 8Insert mechanical key
into ignition knob.Ye s
Remove mechanical key
from ignition knob.No
PIIB0942E

BL-104
INTELLIGENT KEY SYSTEM

2. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect ignition knob switch connector.
3. Check voltage between ignition knob switch connector M20 terminal 7 (Y/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key switch and ignition knob switch
power supply circuit.
3. CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between ignition knob switch connector M20 terminal 7 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch.
4. CHECK IGNITION KNOB SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M31 terminal 27 (BR) and ignition knob switch
connector M20 terminal 2 (BR).
3. Check continuity between ignition knob switch connector termi-
nal 2 (BR) and ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness between Intelligent Key unit
and key switch and ignition knob switch. 7 (Y/B) - Ground : Battery voltage
PIIB0944E
Connector Terminal Condition Continuity
M20 2 7Press ignition knob Yes
Return ignition knob
(Release hands from
ignition knob)No
PIIB0945E
27 (BR) - 2 (BR) : Continuity should exist.
2 (BR) - Ground : Continuity should not exist.
PIIB0946E

INTELLIGENT KEY SYSTEM
BL-111
C
D
E
F
G
H
J
K
L
MA
B
BL

5. CHECK DOOR REQUEST SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M31 terminals 5 (driver door), 25 (passenger
door), and 29 (trunk) and door request switch connector D25 (driver door), D43 (passenger door) terminal
3, T2 (trunk) terminal 2.
3. Check continuity between door request switch connector D25
(driver door), D43 (passenger door), T2 (trunk) terminals 3, 2
and ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between Intelligent Key unit and door request switch.
Check Intelligent Key Warning BuzzerBIS000XK
1. CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key warning buzzer connector.
3. Check voltage between Intelligent Key warning buzzer connector D22 (driver side), B222 (trunk room) ter-
minal 1 (Y/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace Intelligent Key warning buzzer power
supply circuit.
2. CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M31 terminal 4, 23 and Intelligent Key warning
buzzer connector D22 (driver side), B222 (trunk room) terminal 2.
3. Check continuity between Intelligent Key warning buzzer con-
nector D22 (driver side), B222 (trunk room) terminal 2 and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between Intelligent Key warning buzzer and Intelligent Key unit.Driver 5 (B/W) - 3 (B/W) : Continuity should exist.
Passenger 25 (P/L) - 3 (P/L) : Continuity should exist.
Trunk 29 (G/O) - 2 (G/O) : Continuity should exist.
2 (G/O) - Ground : Continuity should not exist.
3 (B/W, P/L) - Ground : Continuity should not exist.
PIIB0957E
1 (Y/R) - Ground : Battery voltage
PIIA6748E
Driver side:
4 (SB) - 2 (SB) : Continuity should exist.
Trunk room:
4 (SB) - 2 (LG/B) : Continuity should exist.
2 (SB) - Ground : Continuity should not exist.
PIIB8798E