Nissan Silvia. Instruction — part 214
7
CHECK COMMUNICATION LINE GROUND SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between ECM harness connector F1 terminal 8 (OR) or IMMU harness connector E114 terminal 1
(PU/R) and ground.
SEL262Y
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
SELF-FUNCTION CHECK
1. Connect ECM connector and disconnect IMMU connector.
2. Turn ignition switch ON.
3. Touch “SELF-FUNCTION CHECK” on CONSULT-II “SELECT DIAG MODE” screen.
4. Touch “START”. ECM will then check its communication interface by itself.
SEL936X
SELF-FUNCTION CHECK result:
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 instruction 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 instruction NATS”.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont’d)
EL-145
DIAGNOSTIC PROCEDURE 4
=NMEL0330S08
Self-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?
Yes
©
GO TO 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 instruction 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 instruction NATS”.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont’d)
EL-146
DIAGNOSTIC PROCEDURE 5
=NMEL0330S09
Self-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?
Yes
©
GO TO 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 Instruction NATS”.
No
©
GO TO 3.
3
CHECK IMMU INSTALLATION
Check IMMU installation.
Refer to “How to Replace IMMU” in EL-153.
OK or NG
OK
©
IMMU is malfunctioning.
Replace IMMU. Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS”.
NG
©
Reinstall IMMU correctly.
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont’d)
EL-147
DIAGNOSTIC PROCEDURE 6
=NMEL0330S10
Self-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?
Yes
©
GO TO 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 instruction 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. F)
No
©
ECM is malfunctioning.
Replace ECM. Ref. part No. F
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation instruction NATS”.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont’d)
EL-148
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