2003 NISSAN ALMERA N16 nats

DIAGNOSTIC PROCEDURE 2=NJEL0411S06Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU” displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key registration procedure, even if the system is not mal-
functioning.
SEL366X
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO SYMPTOM MATRIX CHART 1.
2 CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Disconnect IMMU connector.
2. Check voltage between terminal 8 of IMMU and ground with CONSULT-II or tester.
SEL302WB
OK or NG
OK GO TO 3.
NGCheck the following
10A fuse (No. 36, located in the fusible link and fuse box) — (Gasoline engine)
20A fuse (No. 34, located in the fusible link and fuse box) — (Diesel engine)
Harness for open or short between fuse and IMMU connector
Ref. Part No. C1
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-416

3 CHECK IGN SW. ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between terminal 7 of IMMU and ground with CONSULT-II or tester.
YEL808C
OK or NG
OK GO TO 4.
NGCheck the following
10A fuse [No. 20, located in the fuse block (J/B)]
Harness for open or short between fuse and IMMU connector
Ref. part No. C2
4 CHECK GROUND CIRCUIT FOR IMMU
1. Turn ignition OFF.
2. Check harness continuity between IMMU terminal 4 and ground.
SEL304WB
OK or NG
OK GO TO 5.
NG Repair harness.Ref. part No. C3
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-417

5 CHECK COMMUNICATION LINE OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check harness continuity between ECM terminal 116 (Gasoline engine) or410 (Diesel engine) and IMMU terminal 1.
SEL305WB
OK or NG
OK GO TO 6.
NG Repair harness or connector.
Ref. part No. C4
6 CHECK COMMUNICATION LINE BATTERY SHORT CIRCUIT
1. Turn ignition ON.
2. Check voltage between ECM terminal 116 (Gasoline engine) or 410 (Dieselengine) or IMMU terminal 1 and ground.
SEL306WB
OK or NG
OK GO TO 7.
NG Communication line is short-circuited with battery voltage line or ignition switch ON line.
Repair harness or connectors.
Ref. part No. C4
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-418

7 CHECK COMMUNICATION LINE GROUND SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between ECM terminal 116 (Gasoline engine) or 410 (Diesel engine) or IMMU terminal 1 and ground.
SEL307WB
OK or NG
OK GO TO 8.
NG Communication line is short-circuited with ground line.
Repair harness or connectors.
Ref. part No. C4
8 SIGNAL FROM ECM TO IMMU CHECK
1. Check the signal between ECM terminal 116 (Gasoline engine) or 410 (Diesel engine) and ground with CONSULT-II or
oscilloscope when ignition switch is turned “ON”.
2. Make sure signals which are shown in the figure below can be detected during 750 msec. just after ignition switch is
turned “ON”.
SEL730W
OK or NG
OK IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For the operation of initialization, refer to “CONSULT-II Operation Manual NATS”.
NG ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II.
For the operation of initialization, refer to “CONSULT-II Operation Manual NATS”.
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-419

DIAGNOSTIC PROCEDURE 3=NJEL0411S07Self-diagnostic results:
“DIFFERENCE OF KEY” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “DIFFERENCE OF KEY” displayed on CONSULT-II screen.
SEL367X
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO SYMPTOM MATRIX CHART 1.
2 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization and registration of NATS ignition key IDs, refer to “CONSULT-II operation manual NATS”.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized and can the engine be started with re-registered NATS ignition key?
Yes Ignition key ID was unregistered.Ref. part No. D
No IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-420

DIAGNOSTIC PROCEDURE 4=NJEL0411S08Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-II screen.
SEL368X
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO SYMPTOM MATRIX CHART 1.
2 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.
Ref. part No. E
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
NoModels without dongle unit
IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS”.
Models with dongle unit
GO TO 3.
3 CHECK HARNESS CONNECTOR CONNECTION
Check harness connector connection between M31 and M102.
Does the engine start?
Yes System is OK. (The malfunction is caused by improper connector connection.)
No GO TO 4.
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-421

4 CHECK GROUND CIRCUIT FOR DONGLE UNIT
Check continuity between dongle unit terminal 1 and ground.
SEL029X
YesorNo
Ye s G O T O 5 .
No Repair harness.
5 CHECK INTERFACE CIRCUIT
SEL030X
YesorNo
Ye sDongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialization with CONSULT-II. For the initialization procedure, refer to “CON-
SULT-II operation manual NATS.
No Repair harness.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-422

DIAGNOSTIC PROCEDURE 5=NJEL0411S09Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
1 CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
SEL369X
NOTE:
“ID DISCORD IMMU-ECM”:
Registered ID of IMMU is in discord with that of ECM.
Is CONSULT-II screen displayed as above?
Ye s G O T O 2 .
No GO TO SYMPTOM MATRIX CHART 1.
2 PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-II operation manual NATS”.
SEL297W
NOTE:
If the initialization is not completed or fails, CONSULT-II shows above message on the screen.
Can the system be initialized?
Yes Start engine. (END)
(System initialization had not been completed.Ref. part No. B)
No ECM is malfunctioning.
Replace ECM.Ref. part No. B
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/YD Engine Models without Common Rail and K9K Engine Models (Cont’d)
EL-423