engine NISSAN TIIDA 2007 Service Repair Manual

B2191, P1615 DIFFERENCE OF KEY
SEC-29
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B2191, P1615 DIFFERENCE OF KEY
DescriptionINFOID:0000000001404063
Performs ID verification through BCM when ignition knob switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of mechanical key is used.
DTC LogicINFOID:0000000001404064
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Insert mechanical key into the key cylinder.
2. Press the ignition knob switch.
3. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Refer toSEC-29, "Diagnosis Procedure".
NO >> INSPECTION END.
Diagnosis ProcedureINFOID:0000000001404065
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 >> Mechanical key was unregistered.
NO >> BCM is malfunctioning.
 Replace BCM. Refer to XX-XX, "*****"
.
 Perform initialization again
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2191
DIFFERENCE OF
KEYThe ID verification results between BCM and me-
chanical key are NG. The registration is necessary.Mechanical key
P1615

SEC-30
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
B2192, P1611 ID DISCORD, IMMU-ECM
B2192, P1611 ID DISCORD, IMMU-ECM
DescriptionINFOID:0000000001404066
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:0000000001404067
DTC DETECTION LOGIC
NOTE:
 If DTC B2192 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-21, "
DTC Logic".
 If DTC B2192 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-30, "Diagnosis Procedure".
NO >> INSPECTION END.
Diagnosis ProcedureINFOID:0000000001404068
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 >> GO TO 2.
2.PEPLACE BCM
1. Replace BCM. Refer to XX-XX, "*****"
.
2. 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 >> BCM is malfunctioning.
NO >> GO TO 3.
3.PEPLACE ECM
1. Replace ECM. Refer to the following page.
- HR16DE (WITH EUR-OBD): XX-XX, "*****"
- HR16DE (WITHOUT EUR-OBD): XX-XX, "*****"
- MR18DE (WITH EURO-OBD): XX-XX, "*****"
- MR18DE (WITHOUT EURO-OBD): XX-XX, "*****"
-K9K: XX-XX, "*****"
2. 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?
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2192
ID DISCORD BCM-
ECMThe ID verification results between BCM and ECM
are NG. The registration is necessary.BCM
ECM
P1611

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

B2194 ID DISCORD IMMU-I-KEY
SEC-33
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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

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

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

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.—

BCM (BODY CONTROL MODULE)
SEC-55
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Wiring Diagram - INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION -
INFOID:0000000001404122
ALKWA0089GB

BCM (BODY CONTROL MODULE)
SEC-69
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REAR WIPER CONTROL
BCM detects a rear wiper stopping position according to a rear wiper auto stop signal.
When a rear wiper auto stop signal is in the condition listed below, BCM stops power supply to rear wiper after
rear wiper is activated for five seconds.
NOTE:
The above operation is repeated when operating the rear wiper switch one minute after the stop of the rear
wiper caused by Fail-safe.
TURN SIGNAL LAMP CONTROL
BCM detects the turn signal lamp circuit status from the terminal voltage.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal
lamp operating.
NOTE:
The blinking speed is normal while activating the hazard warning lamp.
LIGHT & RAIN SENSOR MALFUNCTION DETECTION FUNCTION
BCM controls the following items when LIGHT & RAIN sensor has a malfunction.
Auto Light Control
Headlamp is turned ON.
Front Wiper Control
The condition just before the activation of Fail-safe is maintained until the front wiper switch is turned OFF.
DTC Inspection Priority ChartINFOID:0000000001404126
DTC IndexINFOID:0000000001404127
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.
Display contents of CONSULT Fail-safe Cancellation
B2190: NATS ANTENNA AMP Inhibits engine cranking
 Inhibits steering lock unlocking (Intelligent Key unit)
Fuel cut (ECM)Erase DTC
B2191: DIFFERENCE OF KEY Inhibits engine cranking
 Inhibits steering lock unlocking (Intelligent Key unit)
Fuel cut (ECM)Erase DTC
B2192: ID DISCORD BCM-ECM Fuel cut (ECM) Erase DTC
B2193: CHAIN OF BCM-ECM Fuel cut (ECM) Erase DTC
B2194: DISCORD BCM-I-KEY Inhibits engine cranking
 Inhibits steering lock unlocking (Intelligent Key unit)
Fuel cut (ECM)Erase DTC
Ignition switch Rear wiper switch Auto stop signal
ONOFFRear wiper stop position signal cannot be
input 5 seconds.
ON The signal does not change for 5 seconds.
Priority DTC
1 U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2 B2190: NATS ANTENNA AMP
 B2191: DIFFERNCE OF KEY
 B2192: ID DISCORD BCM-ECM
 B2193: CHAIN OF BCM-ECM
 B2194: DISCORD BCM-I-KEY

INTELLIGENT KEY UNIT
SEC-71
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INTELLIGENT KEY UNIT
Reference ValueINFOID:0000000001404128
For LHD vehicles, refer to DLK-381, "Reference Value".
For RHD vehicles, refer to DLK-151, "
Reference Value".
Fail SafeINFOID:0000000001404132
DTC Inspection Priority ChartINFOID:0000000001404133
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC IndexINFOID:0000000001404134
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: INTELIGENT 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 CIRCUITIntelligent Key unit cannot receive CAN communi-
cation signal continuously for 2 seconds or more.—Check CAN communi-
cation system.
Refer to SEC-21
U1010: CONTROL UNIT (CAN)Intelligent Key unit detects internal CAN communi-
cation circuit malfunction.—Replace Intelligent Key
unit.
B2013: STRG COMM 1The ID verification result between Intelligent key
unit and steering lock unit are NG. Or Intelligent Key
unit cannot communicate with steering lock unit.×Perform steering lock
unit ID registration with
CONSULT-III