ignition NISSAN TEANA 2003 Service Manual

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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.
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3 (Y/B) – Ground : Battery voltage.
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Connector Terminal Condition Continuity
M20 3 8Insert mechanical key
into ignition knob.Ye s
Remove mechanical key
from ignition knob.No
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3. CHECK KEY SWITCH SIGNAL CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between key switch connector M20 terminal 8
(B/R) and BCM connector M3 terminal 37 (B/R).
3. Check continuity between key switch connector M20 terminal 8
(B/R) and ground.
OK or NG
OK >> Key switch (BCM input) circuit is OK.
NG >> Repair or replace harness between key switch and BCM.
Check Ignition knob SwitchBIS000XH
1. CHECK IGNITION KNOB SWITCH
With CONSULT-II
Display “PUSH SW” on DATA MONITOR screen, and check if ON/
OFF display is linked to ignition knob operation.
Without CONSULT-II
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit connector M31 ter-
minal 27 (BR) and ground.
OK or NG
OK >> Ignition knob switch is OK.
NG >> GO TO 2.8 (B/R) – 37 (B/R) : Continuity should exist.
8 (B/R) – Ground : Continuity should not exist.
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PUSH SW:
Press ignition knob. : ON
Return ignition knob (release hands
from ignition knob): OFF
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Connec-
torTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M31 27 (BR) GroundPress ignition knob Battery voltage
Return ignition knob
(Release hands from
ignition knob)0
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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
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Connector Terminal Condition Continuity
M20 2 7Press ignition knob Yes
Return ignition knob
(Release hands from
ignition knob)No
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27 (BR) - 2 (BR) : Continuity should exist.
2 (BR) - Ground : Continuity should not exist.
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INTELLIGENT KEY SYSTEM
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Check Door SwitchBIS000XI
CHECK DOOR SWITCH (EXCEPT TRUNK ROOM LAMP SWITCH)
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check door switches (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR
SW-RL” and “DOOR SW-RR”) in “DATA MONITOR” mode with
CONSULT-II.
Without CONSULT-II
1. Turn ignition knob LOCK position.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
Monitor item Condition
DOOR SW-DR
CLOSE → OPEN: OFF → ON DOOR SW-AS
DOOR SW-RL
DOOR SW-RR
Item ConnectorTerminals
(Wire color)Door
conditionVoltage (V)
(Approx.)
(+) (-)
Driver side
M562 (SB)
GroundCLOSE
↓
OPENBattery voltage
↓
0 Rear LH 63
(R/W)
Passenger side
M312 (R/L)
Rear RH13
(R/B)
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CHECK TRUNK ROOM LAMP SWITCH
1. CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
With CONSULT-II
Check (“TRUNK SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition knob LOCK position.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Trunk room lamp switch circuit is OK.
NG >> GO TO 2.
Monitor item Condition
TRUNK SWOPEN : ON
CLOSE : OFF
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ConnectorTe r m i n a l
(Wire color)Back door condi-
tionVoltage (V)
(Approx.)
(+) (-)
M557
(V/W)GroundCLOSE
↓
OPENBattery voltage
↓
0
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4. CHECK TRUNK ROOM LAMP SWITCH GROUND CIRCUIT
Check continuity between trunk room lamp switch connector T7 ter-
minal 1 and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Door Request SwitchBIS000XJ
1. CHECK DOOR REQUEST SWITCH
With CONSULT-II
Display “DR REQ SW” (driver door), “AS REQ SW” (passenger
door) and “BD/TR REQ SW” (trunk) on DATA MONITOR screen, and
check if ON-OFF display is linked to door request switch operation.
Without CONSULT-II
1. Turn ignition switch LOCK position.
2. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> Door request switch is OK.
NG >> GO TO 2.1 (B) – Ground : Continuity should exist.
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Press door request switch. : ON
Release door request switch. : OFF
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Connector ItemTe r m i n a l
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M31Request
switch (driver
side)5 (B/W)
GroundPress request
switch
↓
Release
request switch0
↓
5 Request
switch (pas-
senger side)25 (P/L)
Trunk opener
request
switch29 (G/O)
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2. CHECK DOOR REQUEST SWITCH SIGNAL
1. Turn ignition knob to LOCK position.
2. Disconnect door request switch connector.
3. Check voltage between door request switch connector D25 (driver door), D43 (passenger door) terminal
3, T2 (trunk) terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK DOOR REQUEST SWITCH OPERATION
Check continuity between door request switch connector D25 (driver door), D43 (passenger door) terminals 3
and 4, T2 (trunk) terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace door request switch.
4. CHECK DOOR REQUEST SWITCH GROUND CIRCUIT
1. Check continuity between door request switch connector D25 (driver door), D43 (passenger door) termi-
nal 4 and ground.
2. Check continuity between trunk opener request switch connec-
tor T2 (trunk) terminal 1 and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace door request switch ground circuit.Driver 3 (B/R) - Ground : Approx. 5V
Passenger 3 (P/L) - Ground : Approx. 5V
Trunk 2 (G/O) - Ground : Approx. 5V
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1 - 2 (trunk), 3 - 4 (driver door and passenger door)
Press door request
switch.: Continuity should exist.
Return door request
switch.: Continuity should not exist.
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4 (B) - Ground : Continuity should exist.
1 (B) - Ground : Continuity should exist.
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INTELLIGENT KEY SYSTEM
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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.
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1 (Y/R) - Ground : Battery voltage
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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.
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INTELLIGENT KEY SYSTEM

Check Inside Key AntennaBIS000XM
1. CHECK INSIDE KEY ANTENNA POWER SUPPLY CIRCUIT-1
Push ignition knob and use an oscilloscope to check voltage waveform between Intelligent Key unit connector
M31 terminals 13 (trunk room), 15 (center console), 33 (instrument center lower) and ground.
OK or NG
OK >> Inside key antenna is OK.
NG >> GO TO 2.
2. CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector and inside key antenna connectors.
2. Check continuity between inside key antenna connector M68 (center console), M75 (instrument center
lower), B229 (trunk room) terminals 1, 2 and Intelligent Key unit connector M31 terminals 13, 14, 15, 16,
33 and 34.
3. Check continuity between inside key antenna connector M68
(center console), M75 (instrument center lower), B229 (trunk
room) terminals 1, 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between inside key antenna and Intelligent Key unit.
ConnectorTerminal
(Wire color)Signal (V)
(Approx.)
(+) (–)
M3113 (V/W)
Ground 15 (R/Y)
33 (L/W)
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Trunk room1 (V/W) - 13 (V/W): Continuity should exist.
2 (W/L) - 14 (W/L): Continuity should exist.
Center console1 (R/Y) - 15 (R/Y): Continuity should exist.
2 (R/G) - 16 (R/G): Continuity should exist.
Instrument center lower1 (R/W) - 33 (R/W): Continuity should exist.
2 (L/W) - 34 (L/W): Continuity should exist.
Trunk room1 (V/W) - Ground: Continuity should not exist.
2 (W/L) - Ground: Continuity should not exist.
Center console1 (R/Y) - Ground: Continuity should not exist.
2 (R/G) - Ground: Continuity should not exist.
Instrument center lower1 (R/W) - Ground: Continuity should not exist.
2 (L/W) - Ground: Continuity should not exist.
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INTELLIGENT KEY SYSTEM
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3. CHECK INSIDE KEY ANTENNA POWER SUPPLY-2
1. Replace inside key antenna.
2. Push ignition knob, and use an oscilloscope to check voltage
wave form between Intelligent key unit connector M31 terminals
13 (trunk room), 15 (center console), and 33 (instrument center
lower) and ground.
OK or NG
OK >> Inside key antenna is malfunctioning.
NG >> Replace Intelligent key unit.
Check Steering Lock UnitBIS000XN
1. CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition knob to LOCK position.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit connector M21 terminal 1 (Y/B) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace steering lock unit power supply circuit.
2. CHECK STEERING LOCK UNIT GROUND CIRCUIT
Check continuity between steering lock unit connector M21 terminal 4 (G/Y) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
Push each door request switch.
Trunk room:
13 (V/W) - Ground
Center console:
15 (R/Y) - Ground
Instrument center lower:
33 (L/W) - Ground
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1 (Y/B) - Ground : Battery voltage
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4 (G/Y) - Ground : Continuity should exist.
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