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![NISSAN TIIDA 2007 Service Repair Manual SEC-32
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2193, P1612 CHAIN OF ECM-IMMU
B2193, P1612 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000001404069
BCM performs the ID verification with ECM t NISSAN TIIDA 2007 Service Repair Manual SEC-32
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2193, P1612 CHAIN OF ECM-IMMU
B2193, P1612 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000001404069
BCM performs the ID verification with ECM t](/manual-img/5/57395/w960_57395-4656.png)
SEC-32
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2193, P1612 CHAIN OF ECM-IMMU
B2193, P1612 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000001404069
BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with
ECM if ignition switch is turned ON and starts the engine if the ID is OK. ECM prevents the engine from start-
ing if the ID is not registered.
DTC LogicINFOID:0000000001404070
DTC DETECTION LOGIC
NOTE:
If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-21, "
DTC Logic".
If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-22, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-32, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001404071
1.REPLACE BCM
1. Replace BCM. Refer to XX-XX, "*****"
.
2. Perform initialization with CONSULT-III.
For initialization, refer to CONSULT-III Operation Manual.
Does the engine start?
YES >> BCM was malfunctioning.
NO >> ECM is malfunctioning.
Replace ECM.
Perform ECM re-communicating function.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2193
CHAIN OF BCM-
ECMInactive communication between ECM and BCM Harness or connectors
(The CAN communication line is
open or short)
BCM
ECM P1612
Page 4658 of 5883
![NISSAN TIIDA 2007 Service Repair Manual B2194 ID DISCORD IMMU-I-KEY
SEC-33
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B2194 ID DISCORD IMMU-I-KEY
DescriptionINFOID:0000000001404072
BCM performs the NISSAN TIIDA 2007 Service Repair Manual B2194 ID DISCORD IMMU-I-KEY
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B2194 ID DISCORD IMMU-I-KEY
DescriptionINFOID:0000000001404072
BCM performs the](/manual-img/5/57395/w960_57395-4657.png)
B2194 ID DISCORD IMMU-I-KEY
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B2194 ID DISCORD IMMU-I-KEY
DescriptionINFOID:0000000001404072
BCM performs the ID verification with Intelligent Key unit that allows the engine to start. BCM starts the com-
munication with Intelligent Key unit if ignition switch is turned ON and starts the engine if the ID is OK. BCM
prevents the engine from starting if the ID is not registered.
DTC LogicINFOID:0000000001404073
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-33, "Diagnosis Procedure".
NO >> INSPECTION END.
Diagnosis ProcedureINFOID:0000000001404074
1.PERFORM INITIALIZATION
1. Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> GO TO 2.
NO >> ID was unregistered.
2.REPLACE BCM
1. Turn ignition switch OFF.
2. Replace BCM. Refer to XX-XX, "*****"
.
3. Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.
Can the system be initialized and can the engine be started?
YES >> BCM is malfunctioning.
NO >> GO TO 3.
3.CHECK INTERMITTENT INCIDENT
Refer to @@@.
>> INSPECTION END
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2194DISCORD BCM-I-
KEYThe ID verification results between BCM and Intel-
ligent Key unit are NG. The registration is neces-
sary.BCM
Intelligent Key unit
Page 4659 of 5883
![NISSAN TIIDA 2007 Service Repair Manual SEC-34
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2552 INTELLIGENT KEY
B2552 INTELLIGENT KEY
DescriptionINFOID:0000000001404081
Intelligent key unit performs engine start operation and stee NISSAN TIIDA 2007 Service Repair Manual SEC-34
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2552 INTELLIGENT KEY
B2552 INTELLIGENT KEY
DescriptionINFOID:0000000001404081
Intelligent key unit performs engine start operation and stee](/manual-img/5/57395/w960_57395-4658.png)
SEC-34
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2552 INTELLIGENT KEY
B2552 INTELLIGENT KEY
DescriptionINFOID:0000000001404081
Intelligent key unit performs engine start operation and steering lock control by crosschecking ID with the Intel-
ligent key.
DTC LogicINFOID:0000000001404082
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-34, "Diagnosis Procedure".
NO >> INSPECTION END.
Diagnosis ProcedureINFOID:0000000001404083
1.REPLACE INTELLIGENT KEY UNIT
1. Replace Intelligent Key unit.
2. Perform initialization with CONSULT-III. Re-register all mechanical keys. Refer to CONSULT-III Operation
Manual.
3. Start the engine.
Does the engine start?
YES >> INSPECTION END
NO >> Perform “DTC confirmation procedure”. Refer to SEC-34, "
DTC Logic".
Special Repair RequirementINFOID:0000000001404084
1.REQUIRED WORK WHEN REPLACING INTELLIGENT KEY UNIT
Initialize control unit. Refer to CONSULT-III operation manual.
>> Work end.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2552INTELLIGENT KEY
UNITMalfunction is detected inside Intelligent
key unit.Intelligent Key unit
Page 4660 of 5883
![NISSAN TIIDA 2007 Service Repair Manual B2590 ID DISCORD BCM-I-KEY
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B2590 ID DISCORD BCM-I-KEY
DescriptionINFOID:0000000001404085
Intelligent Key un NISSAN TIIDA 2007 Service Repair Manual B2590 ID DISCORD BCM-I-KEY
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B2590 ID DISCORD BCM-I-KEY
DescriptionINFOID:0000000001404085
Intelligent Key un](/manual-img/5/57395/w960_57395-4659.png)
B2590 ID DISCORD BCM-I-KEY
SEC-35
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B2590 ID DISCORD BCM-I-KEY
DescriptionINFOID:0000000001404085
Intelligent Key unit performs the ID verification with BCM that allows the engine to start. BCM starts the engine
if the ID is OK and prevents the engine from starting if the ID is not registered.
DTC LogicINFOID:0000000001404086
DTC DETECTION LOGIC
NOTE:
If DTC B2590 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-21, "
DTC Logic".
If DTC B2590 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-22, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-35, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001404087
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.
Can the system be initialized and can the engine be started with re-registered mechanical key?
YES >> ID was unregistered.
NO >> BCM is malfunctioning.
Replace BCM. Refer to BCS-57, "
Removal and Installation of BCM".
Perform initialization again
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2590ID DISCORD BCM-I-
KEYThe ID verification results between BCM and Intel-
ligent Key unit are NG. The registration is neces-
sary.BCM
Intelligent Key unit
Page 4661 of 5883
![NISSAN TIIDA 2007 Service Repair Manual SEC-36
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
P1610 LOCK MODE
P1610 LOCK MODE
DescriptionINFOID:0000000001404088
When the starting operation is carried more than five times consecutively NISSAN TIIDA 2007 Service Repair Manual SEC-36
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
P1610 LOCK MODE
P1610 LOCK MODE
DescriptionINFOID:0000000001404088
When the starting operation is carried more than five times consecutively](/manual-img/5/57395/w960_57395-4660.png)
SEC-36
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
P1610 LOCK MODE
P1610 LOCK MODE
DescriptionINFOID:0000000001404088
When the starting operation is carried more than five times consecutively under the following conditions, NATS
will shift to the mode which prevents the engine from being started.
Unregistered mechanical key is used.
BCM or ECM's malfunctioning.
DTC LogicINFOID:0000000001404089
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer to SEC-36, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001404090
1.CHECK ENGINE START FUNCTION
1. Perform the check for DTC except DTC P1610.
2. Use CONSULT-III to erase DTC after fixing.
3. Check that engine can start with registered mechanical key.
Does the engine start?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK INTERMITTENT INCIDENT
Refer to @@@.
>> INSPECTION END
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P1610 LOCK MODEWhen the starting operation is carried out
five or more times consecutively under the
following conditions.
Unregistered mechanical key
BCM or ECM's malfunctioning.—
Page 4662 of 5883
![NISSAN TIIDA 2007 Service Repair Manual POWER SUPPLY AND GROUND CIRCUIT
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POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT : NISSAN TIIDA 2007 Service Repair Manual POWER SUPPLY AND GROUND CIRCUIT
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POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT :](/manual-img/5/57395/w960_57395-4661.png)
POWER SUPPLY AND GROUND CIRCUIT
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POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT : Diagnosis ProcedureINFOID:0000000001532053
1.CHECK FUSES
Check that the following fuses are not blown.
Are the fuses blown?
YES >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector
M52 terminals 6, 10, 11 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Terminal No. Signal name Fuse No.
11 Battery power supply 31 (10A)
10 Ignition power supply (ACC/ON) 6 (10A)
6 Ignition power supply (ON/START) 2 (10A)
ALKIA0736ZZ
Te r m i n a lIgnition switch position
(+) (−)
OFF ACC ON Intelligent Key unit
Ground Connector Terminal
M5211 Battery voltage Battery voltage Battery voltage
10 0V Battery voltage Battery voltage
6 0V Battery voltage Battery voltage
Page 4663 of 5883
SEC-38
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector and
ground.
Is the inspection result normal?
YES >> Intelligent Key unit power supply and ground circuit are OK.
NO >> Repair harness or connector.
BCM
BCM : Diagnosis ProcedureINFOID:0000000001532054
Refer to BCS-30, "Diagnosis Procedure".
WIIA1172E
Intelligent Key unit
GroundContinuity
Connector Terminal
M52 12 Yes
Page 4664 of 5883
![NISSAN TIIDA 2007 Service Repair Manual KEY SWITCH
SEC-39
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DescriptionINFOID:0000000001532049
Key switch detects that mechanical key is inserted NISSAN TIIDA 2007 Service Repair Manual KEY SWITCH
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KEY SWITCH
DescriptionINFOID:0000000001532049
Key switch detects that mechanical key is inserted](/manual-img/5/57395/w960_57395-4663.png)
KEY SWITCH
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KEY SWITCH
DescriptionINFOID:0000000001532049
Key switch detects that mechanical key is inserted into the key cylinder, and then transmits the signal to Intel-
ligent Key unit.
Component Function CheckINFOID:0000000001532050
1.CHECK KEY SWITCH INPUT SIGNAL
Check key switch (“KEY SW”) in “Data Monitor” mode with CONSULT-III. Refer to DLK-50, "
DOOR LOCK :
CONSULT-III Function (BCM - DOOR LOCK)".
Is the inspection result normal?
YES >> Key switch is OK.
NO >> Refer to SEC-39, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001532051
1.CHECK KEY SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector
and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Remove mechanical key from key cylinder.
2. Disconnect key switch and ignition knob switch connector.
Monitor item Condition
KEY SWInsert mechanical key into key cylinder : ON
Remove mechanical key from key cylinder : OFF
WIIA1173E
Te r m i n a l s
ConditionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key unit con-
nectorTe r m i n a l
M52 7 GroundInsert mechanical key into key
cylinderBattery voltage
Remove mechanical key from
key cylinder0