2008 NISSAN TIIDA connector d2

BL-208
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
• When key inserted in trunk key cylinder is turned to FULL STROKE:
• When key is removed from the trunk key cylinder:
Without CONSULT-III
Check voltage between BCM connector M19 terminal 41 and
ground.
OK or NG
OK >> Trunk key cylinder switch signal is OK.
NG >> GO TO 2.
2.CHECK TRUNK KEY CYLINDER SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect trunk key cylinder switch.
3. Check continuity between trunk key cylinder switch connector
B142 terminal 2 and body ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK TRUNK KEY CYLINDER SWITCH
Check continuity between trunk key cylinder switch terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace trunk key cylinder switch.
4.CHECK TRUNK KEY CYLINDER HARNESS
1. Disconnect BCM connector M19.TRUNK CYL SW : ON
TRUNK CYL SW : OFF
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M19
41GroundNeutral (N) 5
Full stroke (open) 0
WIIA1425E
Connector Terminals Continuity
B142 2 – Ground Yes
WIIA1427E
Terminals Trunk key cylinder switch position Continuity
1 – 2 Neutral (N) No
Full Stroke (open) Yes
WIIA1428E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-209
< SERVICE INFORMATION >
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2. Check continuity between BCM connector (A) M19 terminal 41
and trunk key cylinder switch connector (B) B142 terminal 1 and
body ground.
OK or NG
OK >> Trunk key cylinder switch circuit is OK.
NG >> Repair or replace harness.
Connector Terminal Connector Terminal Continuity
A: M19 41B: B142 1 Yes
Ground No
WIIA1429E

BL-210
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connector LocationINFOID:0000000001704103
System DescriptionINFOID:0000000001704104
DESCRIPTION
NOTE:
If customer reports a “No start” condition, request ALL KEYS to be brought to a Nissan dealer in case
of a NATS malfunction.
NATS (Nissan Anti-Theft System) has the following functions:
• NATS shows a higher anti-theft performance at preventing engine to be started by an unregistered key. (reg-
istered key: mechanical key and Intelligent Key).
• Only a key with key ID registered in BCM and ECM can start engine, it has a higher protection against auto
theft that duplicates keys.
• If a malfunction has been detected, security indicator will illuminate when ignition switch is in ON position.
• If the owner requires, mechanical key can be registered for up to 5 keys.
• During trouble diagnosis or when the following parts have been replaced, and if mechanical key is added,
registration* is required.
*: All mechanical keys of the vehicle should be registered.
-ECM
LIIA2920E
1. BCM M18, M19, M20
(view with glove box removed)2. Intelligent Key unit M52
(if equipped)3. NATS antenna amp. M21
(inside steering column)
4. Combination meter M24 5. Security indicator lamp 6. ECM E16

BL-214
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
1. Turn ignition switch OFF.
2. Insert NATS program card into CONSULT-III.
3. Connect CONSULT-III to data link connector.
4. Turn ignition switch ON.
5. Touch “START”.
6. Touch “OTHER”.
7. Select “NATS V.5.0”.
If “NATS V5.0” is not indicated, go to GI-36, "
CONSULT-III Data Link Connector (DLC) Circuit" .
8. Perform each diagnostic test mode according to each service procedure.
For further information, see the CONSULT-III Operation Manual NATS.
CONSULT-III DIAGNOSTIC TEST MODE FUNCTION
*: When replace ECM, refer to BL-211, "ECM Re-communicating Function" .
NOTE:
• When any initialization is performed, all ID previously registered will be erased and all NATS mechanical
keys must be registered again.
• The engine cannot be started with an unregistered key. In this case, the system will show “DIFFERENCE OF
KEY” or “LOCK MODE” as a self-diagnostic result on the CONSULT-III screen.
• In rare case, “CHAIN OF ECM-IMMU” might be stored as a self-diagnostic result during key registration pro-
cedure, even if the system is not malfunctioning.
NATS SELF-DIAGNOSTIC RESULTS ITEM CHART
Program card : NATS (AEN06B) or later
LIIA2663E
CONSULT-III DIAGNOSTIC TEST
MODEDescription
C/U INITIALIZATIONWhen replacing any of the following components, C/U initialization and re-registration of all
NATS mechanical keys are necessary.
[NATS mechanical key/ BCM/ ECM*]
SELF-DIAG RESULTSDetected items (screen terms) are as shown in the chart.
Refer to "NATS SELF-DIAGNOSTIC RESULTS ITEM CHART" .
Detected items
[NATS program card screen terms]P No. Code
(Self-diagnostic
result of “EN-
GINE”)Malfunction is detected when.....Reference
page
CHAIN OF ECM-IMMU
[P1612]NATS MAL-
FUNCTION
P1612Communication impossible between ECM and BCM
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is not
malfunctioning.BL-218
CHAIN OF IMMU-KEY
[P1614]NATS MAL-
FUNCTION
P1614BCM cannot receive the key ID signal.BL-220
ID DISCORD, IMM-ECM
[P1611]NATS MAL-
FUNCTION
P1611The result of ID verification between BCM and ECM is NG.
System initialization is required.BL-221

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-219
< SERVICE INFORMATION >
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In rare case, “CHAIN OF ECM-IMMU” might be stored during key registration procedure, even if the system is
not malfunctioning.
Is
“CHAIN OF ECM-IMMU” displayed?
Yes >> GO TO 2.
No >> GO TO BL-217, "
Trouble Diagnosis" .
2.CHECK POWER SUPPLY CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check voltage between BCM and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.
• 40A fusible link (letter g , located in the fuse and fus-
ible link box).
• 10A fuse [No.8, located in the fuse block (J/B)].
• Harness for open or short between fusible link and BCM.
• Harness for open or short between fuse and BCM.
3.CHECK IGNITION SWITCH ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> Check the following.
• 10A fuse [No. 6, located in the fuse block (J/B)].
• Harness for open or short between fuse and BCM.
4.CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
5.REPLACE BCM
1. Replace BCM
2. Perform initialization with CONSULT-III.
BCM connectorTe r m i n a l s
Voltage [V]
(Approx.)
(+) (–)
M2057
Ground Battery voltage
70
PIIB6582E
BCM connectorTerminal
Voltage [V]
(Approx.)
(+) (–)
M18 38 Ground Battery voltage
PIIB6587E
BCM connectorTerminal
Continuity
(+) (–)
M20 67 Ground Yes
PIIB6588E

BL-220
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
For initialization, refer to “CONSULT-III Operation Manual NATS”.
Does the engine start?
Yes >> BCM is malfunctioning.
• Replace BCM. Refer to BCS-18, "
Removal and Installation of BCM" .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> ECM is malfunctioning.
• Replace ECM.
• Perform initialization or re-communicating function
• For initialization, refer to “CONSULT-III Operation Manual NATS”
• For re-communicating function, refer to BL-211, "
ECM Re-communicating Function"
Diagnosis Procedure 2INFOID:0000000001704113
Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-III screen.
Is
“CHAIN OF IMMU-KEY” displayed?
Ye s > > G O T O 2 .
No >> GO TO BL-217, "
Trouble Diagnosis" .
2.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-224, "
How to Replace NATS Antenna Amp" .
OK or NG
OK >> GO TO 3.
NG >> Reinstall NATS antenna amp. correctly.
3.CHECK NATS IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.
Does the engine start?
Yes >> Ignition key ID chip is malfunctioning.
• Replace the ignition key
• Perform initialization with CONSULT-III
For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> GO TO 4.
4.CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
1. Turn ignition switch “OFF”.
2. Check voltage between NATS antenna amp. connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Check the following.
• 20A fuse [No. 53, located in IPDM E/R]
• Harness for open or short between fuse and NATS
antenna amp.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector and ground with analog tester.
NATS antenna amp.
connectorTe r m i n a l
Voltage [V]
(Approx.)
(+) (–)
M21 1 Ground Battery voltage
PIIB6589E

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-221
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 6.
NG >> • Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization with CONSULT-III. For initialization, refer to
“CONSULT-III Operation Manual NATS”.
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector and ground with analog tester.
OK or NG
OK >> GO TO 7.
NG >> • Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization with CONSULT-III. For initialization, refer to
“CONSULT-III Operation Manual NATS”.
7.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect NATS antenna amp. connector.
3. Check continuity between NATS antenna amp. connector and ground.
OK or NG
OK >> NATS antenna amp. is malfunctioning, reinstall antenna
or replace it.
NG >> Repair or replace NATS antenna amp. ground circuit.
Diagnosis Procedure 3INFOID:0000000001704114
Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-III screen.
NOTE:
NATS anten-
na amp.
connectorTe r m i n a l
ConditionsStatus of
Voltage and tester
(+) (–)
M21 2 GroundBefore tuning igni-
tion switch to ONApprox. 0 [V]
Right after tuning
ignition switch to
ONPointer of tester
should move
PIIB6590E
NATS anten-
na amp.
connectorTe r m i n a l
ConditionsStatus of
Voltage and tester
(+) (–)
M21 4 GroundBefore tuning igni-
tion switch to ONApprox. 0 [V]
Right after tuning
ignition switch to
ONPointer of tester
should move
PIIB6591E
NATS antenna amp.
connectorTe r m i n a l
Continuity
(+) (–)
M21 3 Ground Yes
PIIB6592E

BL-222
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Is
“ID DISCORD IMM-ECM” displayed?
Ye s > > G O T O 2 .
No >> GO TO BL-217, "
Trouble Diagnosis" .
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-III shows message on the screen.
Can the system be initialized?
Yes >> • Start engine. (END)
• (System initialization had not been completed.)
No >> ECM is malfunctioning.
• Replace ECM.
• Perform initialization with CONSULT-III
For initialization, refer to “CONSULT-III Operation Manual NATS”
Diagnosis Procedure 4INFOID:0000000001704115
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP”
1.CHECK FUSE
Check 10A fuse [No.13, located in the fuse block (J/B)]
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2.CHECK COMBINATION METER (SECURITY)
1. Install 10A fuse.
2. Start engine and turn ignition switch OFF.
3. Check if the combination meter (security) lights up.
OK or NG
OK >> INSPECTION END.
NG >> GO TO 3.
3.CHECK COMBINATION METER (SECURITY) POWER SUPPLY CIRCUIT
1. Disconnect combination meter (security) connector.
2. Check voltage between combination meter (security) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and com-
bination meter (security).
4.CHECK BCM FUNCTION
1. Connect combination meter (security) connector.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground. Combination meter (security) should light up.
Combination meter
(security) connec-
torTe r m i n a l
Voltage [V]
(Approx.)
(+) (-)
M24 27 Ground Battery voltage
PIIB6593E