Nissan Terrano model r20 series 2004. Manual — part 432
SYMPTOM MATRIX CHART 1
(Self-diagnosis related item)
SYMPTOM
Displayed “SELF-DIAG
RESULTS” on
CONSULT-II screen
DIAGNOSTIC
PROCEDURE
(Reference page)
SYSTEM
(Malfunctioning part or mode)
REFERENCE PART NO.
OF ILLUSTRATION ON
NEXT PAGE
I
Security indicator light-
ing up*
I
Engine does not start
CHAIN OF ECM-IMMU
PROCEDURE 1
Open circuit in battery voltage line
of IMMU circuit
C1
Open circuit in ignition line of IMMU
circuit
C2
Open circuit in ground line of IMMU
circuit
C3
Open circuit in communication line
between IMMU and ECM
C4
Short circuit between IMMU and
ECM communication line and bat-
tery voltage line
C4
Short circuit between IMMU and
ECM communication line and
ground line
C4
ECM
B
IMMU
A
DIFFERENCE OF KEY
PROCEDURE 2
Unregistered key
D
IMMU
A
CHAIN OF IMMU-KEY
PROCEDURE 3
Malfunction of key ID chip
E
IMMU
A
Open circuit in ground line of
dongle circuit
C6
Open or short circuit in communica-
tion line between IMMU and dongle
control unit
C5
Dongle control unit
G
ID DISCORD, IMM-ECM
PROCEDURE 4
System initialization has not yet
been completed.
F
ECM
B
LOCK MODE
PROCEDURE 5
LOCK MODE
D
I
MI staying ON
I
Security indicator light-
ing up*
DON’T ERASE BEFORE
CHECKING ENG DIAG
WORK FLOW
Engine trouble data and NATS
trouble data have been detected in
ECM.
—
*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
*: When the vehicle is equipped with dongle control unit (RHD models), the security indicator blinks 6 times just after ignition switch is turned
to ON. Then the security indicator lights up while ignition key is in the “ON” position.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-232
SYMPTOM MATRIX CHART 2
(Non self-diagnosis related item)
SYMPTOM
DIAGNOSTIC PROCEDURE
(Reference page)
SYSTEM
(Malfunctioning part or mode)
REFERENCE PART
NO. OF ILLUSTRATION
ON NEXT PAGE
I
Security ind. does not light up.
PROCEDURE 6
Security ind.
Open circuit between Fuse and
NATS IMMU
Continuation of initialization mode
NATS IMMU
Security ind. does not blink just
after initialization even if the vehicle
is equipped with dongle unit.
PROCEDURE 7
NATS might be initialized without connecting dongle unit properly.
Open circuit in ground line of
dongle control circuit
C6
Security ind. does not blink just
after ignition switch is turned to ON
when some malfunction related to
NATS is detected even if the
vehicle is equipped with dongle
unit.
Open or short circuit in communica-
tion line between IMMU and dongle
control unit
C5
Dongle control unit
G
DIAGNOSTIC SYSTEM DIAGRAM
NEL559
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-233
DIAGNOSTIC PROCEDURE 1
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
OK
CHECK POWER SUPPLY CIRCUIT FOR
IMMU.
Check voltage between NATS IMMU ter-
minal
q
8
and ground.
Battery voltage should exist.
OK
E
NG
Check the following.
I
10A fuse (ZD30DDTi
models) or 20A fuse
(TD27Ti models) (No.
32
)
I
Harness for open or
short between fuse and
NATS IMMU connector
Ref. part No. C1
CHECK IGN SW. ON SIGNAL.
Check voltage between NATS IMMU ter-
minal
q
7
and ground while ignition switch
is “ON” position.
Battery voltage should exist.
OK
E
NG
Check the following.
I
10A fuse (No. 11 ,
located in the fuse
block)
I
Harness for open or
short between fuse and
NATS IMMU connector
Ref. part No. C2
CHECK GROUND CIRCUIT FOR IMMU.
Check continuity between NATS IMMU
terminal
q
4
and ground.
Continuity should exist.
OK
E
NG
Repair harness.
Ref. part No. C3
CHECK COMMUNICATION OPEN CIR-
CUIT.
Check continuity between NATS IMMU
terminal
q
1
and ECM terminal
410
(TD27Ti models) or
q
55
(ZD30DDTi mod-
els).
Continuity should exist.
OK
E
NG
Repair harness.
Ref. part No. C4
q
A
YEL471B
YEL322D
YEL323D
YEL324D
YEL325D
H
H
H
H
H
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-234
q
A
CHECK COMMUNICATION LINE SHORT
CIRCUIT.
1. Disconnect ECM connector and NATS
IMMU connector.
2. Check continuity between NATS IMMU
terminal
q
1
and ground.
Continuity should not exist.
3. Turn ignition switch to ON.
4. Check voltage between IMMU terminal
q
1
and ground.
No voltage should exist.
OK
E
NG
Repair harness.
Ref. part No. C4
Check the signal from ECM to NATS
IMMU.
1. Check the signal between ECM termi-
nal
410
(TD27Ti models) or
q
55
(ZD30DDTi models) and ground with
CONSULT-II or oscilloscope when igni-
tion switch is turned ON.
2. Some signals can be detected during
750 msec. just after ignition switch is
turned “ON”.
OK
E
NG
ECM is malfunctioning.
1. Replace ECM.
Ref part No. B
2. Perform initialization
procedure, refer to
“CONSULT-II operation
manual NATS”.
NATS IMMU is malfunctioning.
1. Replace NATS IMMU.
Ref. part No. A
2. Perform initialization with CONSULT-II.
For the initialization procedure, refer to
“CONSULT-II operation manual NATS”.
YEL326D
NEL543
H
H
H
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-235
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