Nissan Cube. Manual — part 845
P1611 ID DISCORD, IMMU-ECM
SEC-191
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
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P1611 ID DISCORD, IMMU-ECM
Description
INFOID:0000000009950256
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 starts the engine if the ID is OK. ECM prevents the engine from starting if
the ID is not registered.
DTC Logic
INFOID:0000000009950257
DTC DETECTION LOGIC
NOTE:
• If DTC P1611 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC P1611 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnosis result” with CONSULT.
Is DTC detected?
YES
>> Refer to
SEC-191, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009950258
1.
PERFORM INITIALIZATION
Perform initialization of BCM and registration of all ignition keys using CONSULT.
Can the system be initialized and can the engine be started with registered ignition key?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE BCM
1.
Replace BCM. Refer to
BCS-88, "Removal and Installation"
.
2.
Perform initialization of BCM and registration of all ignition keys using CONSULT.
Can the system be initialized and can the engine be started with registered ignition key?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
REPLACE ECM
SEC-178, "ECM : Special Repair Requirement"
Can the system be initialized and can the engine be started with registered ignition key?
YES
>> INSPECTION END
NO
>> GO TO 4.
4.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1611
ID DISCORD IMMU-ECM
The ID verification results between BCM and ECM are NG.
• BCM
• ECM
SEC-192
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
P1612 CHAIN OF ECM-IMMU
P1612 CHAIN OF ECM-IMMU
Description
INFOID:0000000009950259
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 Logic
INFOID:0000000009950260
DTC DETECTION LOGIC
NOTE:
• If DTC P1612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC P1612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnosis result” with CONSULT.
Is DTC detected?
YES
>> Refer to
SEC-192, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009950261
1.
REPLACE BCM
1.
Replace BCM. Refer to
BCS-88, "Removal and Installation"
.
2.
Perform initialization of BCM and registration of all ignition keys using CONSULT.
Does the engine start?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ECM
Replace ECM. Refer to
SEC-178, "ECM : Special Repair Requirement"
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC 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 short)
• BCM
• ECM
P1614 CHAIN OF IMMU-KEY
SEC-193
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
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P1614 CHAIN OF IMMU-KEY
Description
INFOID:0000000009950262
Performs ID verification through BCM and NATS antenna amp. when ignition switch is ON position.
Prohibits the start of engine when an unregistered ID of ignition key is used.
DTC Logic
INFOID:0000000009950263
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Insert ignition key into the key cylinder.
2.
Turn ignition switch ON.
3.
Check “Self diagnosis result” with CONSULT.
Is DTC detected?
YES
>> Refer to
SEC-193, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009950264
1.
CHECK FUSE
Check that the following IPDM E/R fuse is not blown.
Is the fuse fusing?
YES
>> Is the blown fuse after repairing the affected circuit if a fuse is blown.
NO
>> GO TO 2.
2.
CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. Installation. Refer to
SEC-197, "Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Reinstall NATS antenna amp. correctly.
3.
CHECK IGNITION KEY
Start engine with another registered ignition key.
Does the engine start?
YES
>> Replace ignition key, then perform initialization of BCM and registration of all ignition keys using
CONSULT.
NO
>> GO TO 4.
4.
CHECK NATS ANTENNA AMP. POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect NATS antenna amp. connector.
3.
Check voltage between NATS antenna amp. harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1614
NATS ANTENNA AMP.
• Inactive communication between NATS antenna
amp. and BCM
• Ignition key is malfunctioning
• Harness or connectors
(The NATS antenna amp. circuit is
open or short)
• Ignition key
• NATS antenna amp.
• BCM
Signal name
Fuse No.
Battery power supply
43
SEC-194
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
P1614 CHAIN OF IMMU-KEY
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK NATS ANTENNA AMP. POWER SUPPLY CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check continuity between IPDM E/R harness connector and NATS antenna amp. connector.
3.
Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-64, "Removal and Installation"
NO
>> Repair or replace harness.
6.
CHECK NATS ANTENNA AMP. GROUND CIRCUIT
Check continuity between NATS antenna amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness.
7.
CHECK NATS ANTENNA AMP. SIGNAL
1.
Connect BCM connector and NATS antenna amp. connector.
2.
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 8.
8.
CHECK NATS ANTENNA AMP. SIGNAL CIRCUIT
(+)
(–)
Voltage (V)
(Approx.)
NATS antenna amp.
Connector
Terminal
M26
1
Ground
Battery voltage
IPDM E/R
NATS antenna amp.
Continuity
Connector
Terminal
Connector
Terminal
E14
45
M26
1
Existed
IPDM E/R
Ground
Continuity
Connector
Terminal
E14
45
Not existed
NATS antenna amp.
Ground
Continuity
Connector
Terminal
M26
3
Existed
(+)
(
−
)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M65
21
Ground
Just after inserting ignition key in key cylinder
Pointer of tester should
move
Other than above
0
25
Just after inserting ignition key in key cylinder
Pointer of tester should
move
Other than above
0
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