2008 NISSAN TEANA check engine

SEC-34
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
P1612 CHAIN OF ECM-IMMU
P1612 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000003814933
BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.
DTC LogicINFOID:0000000003814934
DTC DETECTION LOGIC
NOTE:
 If DTC P1612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC P1612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-34, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814935
1.REPLACE BCM
1. Replace BCM. Refer to BCS-78, "
Removal and Installation".
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE ECM
Replace ECM. Refer to EC-14, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description".
>> INSPECTION END
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P1612 CHAIN OF ECM-IMMU Inactive communication between ECM and BCM Harness or connectors
(The CAN communication line is open or
shorted)
BCM
ECM

P1614 CHAIN OF IMMU-KEY
SEC-35
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
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P1614 CHAIN OF IMMU-KEY
DescriptionINFOID:0000000003814936
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.
DTC LogicINFOID:0000000003814937
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE 1
1. Insert Intelligent Key into the key slot.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-35, "Diagnosis Procedure".
NO >> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE 2
1. Press the push-button ignition switch.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-35, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814938
1. INSPECTION START
Check the case in which DTC is detected.
 Case1: It is detected when Intelligent Key is inserted into key slot.
 Case2: It is detected after Intelligent Key is inserted into key slot and push-button ignition switch is pressed.
In which case is DTC detected?
Case1. >> GO TO 2.
Case2. >> GO TO 4.
2.CHECK KEY SLOT INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between key slot harness connector and ground.
Is the inspection result normal?
YES >> Replace key slot. Refer to SEC-204, "Removal and Installation".
NO >> GO TO 3.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P1614CHAIN OF IMMU-
KEYInactive communication between key slot and
BCM. Harness or connectors
(The key slot circuit is open or
shorted)
 Key slot
BCM
(+)
(–)Voltage (V)
(Approx.) Key slot
Connector Terminal
M99 2 Ground Battery voltage

SEC-38
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
P1615 DIFFRENCE OF KEY
P1615 DIFFRENCE OF KEY
DescriptionINFOID:0000000003814939
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.
DTC LogicINFOID:0000000003814940
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-38, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814941
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Reregister all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE INTELLIGENT KEY
1. Replace Intelligent Key.
2. Perform initialization with CONSULT-III.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.
Can the system be initialized and can the engine be started with re-registered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1615 DIFFERENCE OF KEYThe ID verification result between BCM and Intelligent Key
is NG. The registration is necessary.Intelligent Key

B2190 NATS ANTENNA AMP.
SEC-39
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
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B2190 NATS ANTENNA AMP.
DescriptionINFOID:0000000003814942
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.
DTC LogicINFOID:0000000003814943
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Insert Intelligent Key into the key slot.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-39, "Diagnosis Procedure".
NO >> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-39, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814944
1. INSPECTION START
Check the case in which DTC is detected.
 Case1: It is detected when Intelligent Key is inserted into key slot.
 Case2: It is detected after Intelligent Key is inserted into key slot and push-button ignition switch is pressed.
In which case is DTC detected?
Case1. >> GO TO 2.
Case2. >> GO TO 4.
2.CHECK KEY SLOT INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between key slot harness connector and ground.
Is the inspection result normal?
YES >> Replace key slot. Refer to SEC-204, "Removal and Installation".
NO >> GO TO 3.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2190NATS ANTENNA
AMPInactive communication between key slot and
BCM. Harness or connectors
(The key slot circuit is open or
shorted)
 Key slot
BCM
(+)
(–)Voltage (V)
(Approx.) Key slot
Connector Terminal
M99 2 Ground Battery voltage

SEC-42
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B2191 DIFFERENCE OF KEY
B2191 DIFFERENCE OF KEY
DescriptionINFOID:0000000003814945
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.
DTC LogicINFOID:0000000003814946
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-42, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814947
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Reregister all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE INTELLIGENT KEY
1. Replace Intelligent Key.
2. Perform initialization with CONSULT-III.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2191 DIFFERENCE OF KEYThe ID verification result between BCM and Intelligent Key
is NG. The registration is necessary.Intelligent Key

B2192 ID DISCORD, IMMU-ECM
SEC-43
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
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B2192 ID DISCORD, IMMU-ECM
DescriptionINFOID:0000000003814948
BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.
DTC LogicINFOID:0000000003814949
DTC DETECTION LOGIC
NOTE:
 If DTC B2192 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2192 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-43, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814950
1.PERFORM INITIALIZATION
Perform initialization with CONSULT-III. Reregister all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE BCM
1. Replace BCM. Refer to BCS-78, "
Removal and Installation".
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 3.
3.REPLACE ECM
1. Replace ECM. Refer to EC-14, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Descrip-
tion".
2. Perform initialization with CONSULT-III.
Can the system be initialized and can the engine be started with reregistered Intelligent Key?
YES >> INSPECTION END
NO >> GO TO 4.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2192ID DISCORD, IMMU-
ECMThe ID verification result between BCM and ECM is
NG. The registration is necessary.BCM
ECM

B2193 CHAIN OF ECM-IMMU
SEC-45
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
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B2193 CHAIN OF ECM-IMMU
DescriptionINFOID:0000000003814951
BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.
DTC LogicINFOID:0000000003814952
DTC DETECTION LOGIC
NOTE:
 If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-28, "
BCM : DTC Logic".
 If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "
BCM : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions.
- Selector lever is in the P or N position.
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-45, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814953
1.REPLACE BCM
1. Replace BCM. Refer to BCS-78, "
Removal and Installation".
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE ECM
Replace ECM. Refer to EC-14, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description".
>> INSPECTION END
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
B2193CHAIN OF ECM-
IMMUInactive communication between ECM and BCM Harness or connectors
(The CAN communication line is
open or shorted)
BCM
ECM

SEC-50
< COMPONENT DIAGNOSIS >[INTELLIGENT KEY SYSTEM]
B2555 STOP LAMP
B2555 STOP LAMP
DescriptionINFOID:0000000003814960
BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the
engine start condition according to the stop lamp switch ON/OFF status.
DTC LogicINFOID:0000000003814961
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Depress the brake pedal and wait for at least 1 second.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES >> Go to SEC-50, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003814962
1.CHECK STOP LAMP SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
Is the inspection normal?
YES >> GO TO 2.
NO >> Check the following.
 10A fuse [No. 7, located in the fuse block (J/B)]
 Harness for open or short between BCM and fuse.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check harness for open or short between stop lamp switch and fuse.
DTC No.Trouble diagno-
sis nameDTC detecting condition Possible cause
B2555 STOP LAMPBCM makes a comparison between the
upper voltage and lower voltage of stop
lamp switch. It judges from their values to
detect the malfunctioning circuit. Harness or connectors
(Stop lamp switch circuit is open or shorted)
 Stop lamp switch
Fuse
(+)
(–)Voltage (V)
(Approx.) BCM
Connector Terminal
M123 116 Ground Battery voltage
(+)
(–)Voltage (V)
(Approx.) Stop lamp switch
Connector Terminal
E115 1 Ground Battery voltage