2001 NISSAN ALMERA N16 ECU

SYMPTOM MATRIX CHART 1NJEL0411S02(Self-diagnosis related item)
SYMPTOMDisplayed ªSELF-DIAG
RESULTSº on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
+Security indicator
lighting up*
+Engine cannot be
startedECM INT CIRC-IMMUPROCEDURE 1
(EL-244)ECM B
CHAIN OF ECM-IMMUPROCEDURE 2
(EL-245)In rare case, ªCHAIN
OF ECM-IMMUº might
be stored during key
registration procedure,
even if the system is not
malfunctioning.Ð
Open circuit in battery
voltage line of IMMU
circuitC1
Open circuit in ignition
line of IMMU circuitC2
Open circuit in ground
line of IMMU circuitC3
Open circuit in commu-
nication line between
IMMU and ECMC4
Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage lineC4
Short circuit between
IMMU and ECM com-
munication line and
ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-249)Unregistered key D
IMMU A
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-250)Malfunction of key ID
chipE
IMMU A
Open circuit in ground
line of dongle unit circuitC6
Open or short circuit in
line between IMMU and
dongle unitC5
Dongle unit G
ID DISCORD, IMM-ECMPROCEDURE 5
(EL-252)System initialization has
not yet been completed.F
ECM B
LOCK MODEPROCEDURE 7
(EL-255)LOCK MODE D
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-242

SYMPTOMDisplayed ªSELF-DIAG
RESULTSº on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
+MIL staying ON
+Security indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(EL-241)Engine trouble data and
NATS trouble data have
been detected in ECMÐ
*: When NATS detects trouble, the security indicator lights up while ignition key is in the ªONº position.
*: When the vehicle is equipped with a dongle unit (RHD models for Europe), the security indicator blinks 6 times just after the ignition
switch is turned to ON. Then the security indicator lights up while the ignition key is in the ªONº position.
SYMPTOM MATRIX CHART 2NJEL0411S03(Non self-diagnosis related item)
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART NO. OF
ILLUSTRATION ON SYSTEM
DIAGRAM
Security ind. does not light up.PROCEDURE 6
(EL-253)Security ind. Ð
Open circuit between Fuse and
IMMUÐ
Continuation of initialization
modeÐ
IMMU A
Security ind. does not blink just
after initialization even if the
vehicle is equipped with dongle
unit.
PROCEDURE 8
(EL-257)NATS might be initialized with-
out connecting dongle unit
properly.Ð
Open circuit in ground line of
dongle unit circuitC6
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 com-
munication line between IMMU
and dongle unitC5
Dongle unit G
DIAGNOSTIC SYSTEM DIAGRAMNJEL0411S04
SEL028X
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-243

DIAGNOSTIC PROCEDURE 6=NJEL0411S10ªSECURITY INDICATOR LAMP DOES NOT LIGHT UPº
1 CHECK FUSE
Check 10A fuse [No. 12, located in the fuse block (J/B)].
Is 10A fuse OK?
Ye s©GO TO 2.
No©Replace fuse.
2 CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse.
2. Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II Operation Manual NATSº.
3. Turn ignition switch OFF.
4. Start engine and turn ignition switch OFF.
5. Check the security indicator lamp lighting.
Security indicator lamp should be light up.
OK or NG
OK©INSPECTION END
NG©GO TO 3.
3 CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector.
2. Check voltage between combination meter (security indicator lamp) connector terminal 23 and ground.
YEL809C
OK or NG
OK©GO TO 4.
NG©Check harness for open or short between fuse and combination meter.
4 CHECK SECURITY INDICATOR LAMP
Check security Indicator Lamp.
Is security indicator lamp OK?
Ye s©GO TO 5.
No©Repair or replace combination meter.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-253

5 CHECK IMMU FUNCTION
1. Connect IMMU connector.
2. Disconnect combination meter connector.
3. Check continuity between IMMU terminal 6 and ground.
YEL810C
OK or NG
OK©Check harness for open or short between security indicator lamp and IMMU.
NG©IMMU is malfunctioning.
Replace IMMU.Ref. part No. A
Perform initialization with CONSULT-II.
For initialization, refer to ªCONSULT-II operation manual NATSº.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-254

DIAGNOSTIC PROCEDURE 8=NJEL0411S14
1 CHECK HARNESS CONNECTOR CONNECTION
Perform initialization with CONSULT-II.
Check harness connector connection between M31 and M102.
Then initialize NATS. For the initialization operation, refer to ªCONSULT-II operation NATSº.
Does the security indicator blink just after initialization?
Ye s©System is OK. (The malfunction is caused by improper connector connection.)
No©GO TO 2.
2 CHECK GROUND CIRCUIT FOR DONGLE UNIT
Check continuity between dongle unit terminal 1 and ground.
SEL029X
YesorNo
Ye s©GO TO 3.
No©Repair harness.
3 CHECK INTERFACE CIRCUIT
SEL030X
YesorNo
Ye s©Dongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialization with CONSULT-II. For the initialization procedure, refer to ªCON-
SULT-II Operation Manual NATSº.
No©Repair harness.
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses (Cont'd)
EL-257

SEF289X
CONSULT-II=NJEL0524CONSULT-II INSPECTION PROCEDURENJEL0524S011. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
PBR455D
3. Insert NATS program card into CONSULT-II.
: Program card
NATS-AEN00B
4. Turn ignition switch ON.
5. Touch ªSTARTº.
SEL517X
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation
Manual, NATS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTIONNJEL0524S02
CONSULT-II DIAGNOSTIC TEST
MODEDescription
PIN INITIALIZATION Navigation system will be locked when the vehicle's owner enters the wrong PIN five con-
secutive times.
To release the lock, use ªPIN INITIALIZATIONº.
NAVI ID INITIALIZATION In normal times regulation codes are being communicated between Navigation Control
Unit and Dongle Control Unit.
Use ªNAVI ID INITIALIZATIONº to match the codes when either one has been replaced
due to breakdown or etc.
NOTE:
When any initialization is performed, all NAVI ID and PIN pre-
viously registered will be erased and then must be registered
again.
NAVIGATION SYSTEM
CONSULT-II
EL-302