check engine NISSAN PRIMERA 1999 Electronic Repair Manual

Electrical Components Inspection
FUEL WARNING LAMP OPERATION CHECK
1. Turn ignition switch“OFF”.
2. Disconnect fuel level sensor unit harness connector
B31.
3. Connect a resistor (172 - 180Ω) between fuel tank gauge unit
harness connector terminals

1and
3.
4. Turn ignition switch“ON”.
The fuel warning lamp should come on.
OIL PRESSURE SWITCH CHECK
Oil pressure
kPa (kg/cm2, psi)Continuity
Engine startMore than 10 - 20
(0.1-0.2,1-3)NO
Engine stopLess than 10 - 20
(0.1-0.2,1-3)YES
Check the continuity between the terminals of oil pressure switch
and body ground.
YEL455B Fuel level sensor unit connector
172 - 180Ωresistor
MEL425F Ohmmeter
WARNING LAMPS
EL-179

Trouble Diagnoses
Symptom Possible cause Repair order
Radio inoperative (no digital
display and no sound from
speakers).1. 10A Fuse
2. Poor radio case ground
3. Radio1. Check 10A fuse [No.
3 , located in fuse block
(J/B)]. Turn ignition switch ON and verify battery
positive voltage is present at terminal

3of radio
2. Check radio case ground.
3. Remove radio for repair.
Radio controls are
operational, but no sound is
heard from any speaker.1. Radio output
2. Radio1. Check radio output voltages.
2. Remove radio for repair.
Radio presets are lost
when ignition switch is
turned OFF.1. 15A fuse
2. Radio1. Check 15A fuse [No.
35 , located in fuse and fus-
ible box and verify battery positive voltage is
present at terminal

9of radio.
2. Remove radio for repair.
Individual speaker is noisy
or inoperative.1. Speaker
2. Radio output
3. Speaker circuit
4. Radio1. Check speaker
2. Check radio output voltages.
3. Check wires for open or short between radio and
speaker.
4. Remove radio for repair.
Radio stations are weak or
noisy.1. Antenna
2. Poor radio ground
3. Radio1. Check antenna.
2. Check radio ground.
3. Remove radio for repair.
Radio generates noise in
AM and FM modes with
engine running.1. Poor radio ground
2. Loose or missing ground bonding
straps
3. Ignition condenser or rear window
defogger noise suppressor con-
denser
4. Alternator
5. Ignition coil or secondary wiring
6. Radio1. Check radio ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger
noise suppressor condenser.
4. Check alternator
5. Check ignition coil and secondary wiring.
6. Remove radio for repair.
Radio generates noise in
AM and FM modes with
accessories on (switch
pops and motor noise).1. Poor radio ground
2. Antenna
3. Accessory ground
4. Faulty accessory1. Check radio ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
AUDIO
EL-226

DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Ye s
No
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1) Disconnect control unit connector
and NATS IMMU connector.
2) Check continuity between control
unit terminal

26and NATS IMMU
terminal

3.
Continuity should exist.
3) Check continuity between control
unit terminal

26and ground.
Continuity should not exist.
OK
NG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1) Connect control unit connector and
NATS IMMU connector.
2) Check voltage between control unit
terminal

26and ground.
OK
NG
Check NATS system.
Replace super lock control unit.
Ignition switch conditionVoltage
[V]
LOCK
12 More than 10 seconds after igni-
tion switch turned to“ON”posi-
tion
For 10 seconds after ignition
switch turned to“ON”positionPulse
YEL451B
Time control
unit connectorNATS IMMU
YEL452B
Time control
unit connector



POWER DOOR LOCK—Super Lock—
Trouble Diagnoses (Cont’d)
EL-294

HOW TO READ SELF-DIAGNOSTIC RESULTS
NATS SELF-DIAGNOSTIC RESULTS ITEM CHART
Detected items
(NATS program card screen
terms)P No. Code
(Self-diagnos-
tic result of
“ENGINE”)Malfunction is detected when ...Reference
page
ECM INT CIRC-IMMUNATS MAL-
FUNCTION
P1613The malfunction of ECM internal circuit of IMMU communication line is
detected.EL-352
CHAIN OF ECM-IMMUNATS MAL-
FUNCTION
P1612Communication impossible between ECM and IMMU EL-353
DIFFERENCE OF KEYNATS MAL-
FUNCTION
P1615IMMU can receive the key ID signal but the result of ID verification
between key ID and IMMU is NG.EL-355
CHAIN OF IMMU-KEYNATS MAL-
FUNCTION
P1614IMMU cannot receive the key ID signal. Or the registered ID signal from
dongle unit can not be received when the IMMU request the ID.EL-356
ID DISCORD, IMM-ECMNATS MAL-
FUNCTION
P1611The result of ID verification between IMMU and ECM is NG. System ini-
tialization is required.EL-358
DON’T ERASE BEFORE
CHECKING ENG DIAG—All engine trouble codes except NATS trouble code have been detected
in ECM.EL-349
LOCK MODENATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more times consecu-
tively under the following conditions, NATS will shift the mode to one
which prevents the engine from being started.

Unregistered ignition key is used.
IMMU or ECM is malfunctioning.EL-361
SEL308W
NATS (Nissan Anti-Theft System)
CONSULT-II (Cont’d)
EL-348

Trouble Diagnoses
WORK FLOW
CHECK IN
Listen to customer complaints or request. (Get symptoms)
TROUBLEKEY SERVICE REQUEST (Additional key ID registration)
Verify the security indicator and MI*.INITIALISATION
(Refer to CONSULT-II opera-
tion manual NATS.)
Using the CONSULT-II program card for NATS check the
“SELF-DIAG RESULTS”with CONSULT-II.
Self-diagnostic results referring to NATS, but no informa-
tion about engine self-diagnostic results is displayed on
CONSULT-II.
Turn ignition switch“OFF”.
Repair NATS.
(If necessary, carry out“C/U INITIALIZATION”with CON-
SULT-II.)
Turn ignition switch“ON”.
Erase the NATS“SELF-DIAG RESULTS”by using CON-
SULT-II. (Touch“ERASE”.)
Start the engine.
NGVerify no lighting up of the security indicator.
OK
CHECK OUT
Perform running test with CONSULT-II in engine“SELF-
DIAG RESULTS”mode.
NGVerify“NO DTC IS DETECTED”displayed on the CON-
SULT-II screen.
OK
CHECK OUT
Self-diagnostic results referring to NATS and“DON’T
ERASE BEFORE CHECKING ENG DIAG”are displayed
on CONSULT-II.
(This means that engine trouble data has been detected
in ECM.)
Turn ignition switch“OFF”.
Repair NATS according to self-diagnostic results refer-
ringtoNATS.
(If necessary, carry out“C/U INITIALIZATION”with
CONSULT-II.)
Do not erase the NATS“SELF-DIAG RESULTS”by
using CONSULT-II.
Check the engine“SELF-DIAG RESULTS”with CON-
SULT-II by using the CONSULT-II generic program card.
(Engine diagnostic software included)
OK

Repair engine control system (Refer to EC section.)
when self-diagnostic results except“NATS MALFUNC-
TION”are detected. When only“NATS MALFUNCTION”
is detected, erase the self-diagnostic results and go to
the next step.
Start the engine. Does the engine start properly?NG
Erase the NATS and engine“SELF-DIAG RESULTS”by
using the CONSULT-II program card for NATS and
generic program card.
Start the engine.






















NATS (Nissan Anti-Theft System)
EL-349

SYMPTOM MATRIX CHART 1
(Self-diagnosis related item)
SYMPTOMDisplayed“SELF-DIAG
RESULTS”on
CONSULT-II screenDIAGNOSTIC
PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART
NO. OF ILLUSTRATION
ON NEXT PAGE

Security indicator
lighting up*

Engine does not startECM INT CIRC-IMMUPROCEDURE 1
(EL-352)ECM B

Security indicator
lighting up*

Engine does not startCHAIN OF ECM-IMMUPROCEDURE 2
(EL-353)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 communication
line between IMMU and ECMC4
Short circuit between IMMU and
ECM communication line and bat-
tery voltage lineC4
Short circuit between IMMU and
ECM communication line and
ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-355)Unregistered key D
IMMU A
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-356)Malfunction of key ID chip E
IMMU A
Open circuit in ground line of
dongle circuitC6
Open or short circuit in communi-
cation line between IMMU and
dongle unitC5
Dongle control unit G
ID DISCORD, IMM-ECMPROCEDURE 5
(EL-358)System initialisation has not yet
been completed.F
ECM B
LOCK MODEPROCEDURE 7
(EL-361)LOCK MODE D

MI staying ON
Security indicator
lighting up*DON’T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(EL-349)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 unit (RHD models for Europe), 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-350

DIAGNOSTIC PROCEDURE 2
Self-diagnostic results:
“CHAIN OF ECM-IMMU”displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS“CHAIN OF ECM-
IMMU”displayed on CON-
SULT-II screen.
OK
CHECK POWER SUPPLY CIRCUIT
FOR IMMU.
Check voltage between IMMU terminal

8and ground.
Battery voltage should exist.
OK
NG
Check the following.

10A fuse (No.39 :
gasoline engine,
located in the fuse
and fusible link box)

Harness for open or
short between fuse
and IMMU connector
Ref. part No, C1
CHECK IGN SW. ON SIGNAL.
Check voltage between IMMU terminal

7and ground while ignition switch is
“ON”position.
Battery voltage should exist.
OK
NG
Check the following.

10A fuse [No.12 ,
located in the fuse
block (J/B)]

Harness for open or
short between fuse
and IMMU connector
Ref. part No. C2
CHECK GROUND CIRCUIT FOR
IMMU.
Check continuity between IMMU termi-
nal

4and ground.
Continuity should exist.
OK
NG
Repair harness.
Ref. part No. C3
CHECK COMMUNICATION OPEN
CIRCUIT.
Check continuity between IMMU termi-
nal

1and ECM terminal11 6(Gaso-
line engine) or
410(Diesel engine).
Continuity should exist.
OK
NG
Repair harness.
Ref. part No. C4

A
SELF DIAGNOSIS
TIME DTC RESULTS
CHAIN OF ECM-IMMU0
YEL471B
YEL472B
IMMU connector
YEL473B
IMMU connector
YEL474B
IMMU connector
NEL762
ECM connector
IMMU connector





NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-353

DIAGNOSTIC PROCEDURE 4
Self-diagnostic results:
“CHAIN OF IMMU-KEY”displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS“CHAIN OF IMMU-
KEY”displayed on CONSULT-II
screen.
OK
CHECK NATS IGNITION KEY ID CHIP.
Can the engine start with another regis-
tered NATS ignition key?
No
Ye s
Ignition key ID chip is
malfunctioning.
1. Replace the ignition
key.
Ref. part No. E
2. Perform initialisation
with CONSULT-II.
For the initialisation
procedure, refer to
“CONSULT-II opera-
tion manual NATS”.
CHECK NATS IMMU INSTALLATION.
Refer to“How to Replace NATS IMMU”
in EL-363.
OK
NG
Reinstall NATS IMMU
correctly.
Is this vehicle equipped with dongle
unit (RHD models for Europe)?
Ye s
No
IMMU is malfunctioning.
1. Replace IMMU.
Ref part No. A
2. Perform initialisation
with CONSULT-II
For the initialisation
procedure, refer to
“CONSULT-II opera-
tion manual NATS”.

A
SELF DIAGNOSIS
TIME DTC RESULTS
CHAIN OF IMMU-KEY0
YEL480B



NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-356

A
CHECK HARNESS CONNECTOR
CONNECTION.
Check the following harness connector
connection.
E125/M70
M85
Does the engine start?
No
Ye s
System is OK.
(The malfunction is
caused by improper con-
nector connection.)
CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle unit
terminal

3and ground.
Continuity should exist.
Ye s
No
Repair harness.
CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU ter-
minal

2and dongle unit terminal

5(Open circuit check)
Continuity should exist.
2. Check continuity between IMMU ter-
minal

2and ground. (Short circuit
check)
Continuity should not exist.
Ye s
No
Repair harness.
Dongle unit is malfunctioning.
1. Replace dongle unit.
2. Perform initialisation with CONSULT-
II.
For the initialisation procedure, refer
to“CONSULT-II operation manual
NATS”.
SEL417W
Dongle unit connector
SEL418W
IMMU connectorDongle unit
connector
Short circuit check
SEL419WShort circuit check IMMU connector




NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-357

DIAGNOSTIC PROCEDURE 6
—With security indicator on dashboard—
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
Check 10A fuse [No.16 , located in the
fuse block (J/B)].
OK
NG
Replace fuse.
NATS INITIALISATION
1) Install the 10A fuse.
2) Perform initialisation with
CONSULT-II.
For the operation of
initialisation, refer to“CON-
SULT-II operation manual
NATS”.
Turn ignition switch“OFF”.
Start engine and turn ignition switch
“OFF”.
Check the security ind. lighting.
NG
OK
INSPECTION END
Check voltage between security indica-
tor lamp connector terminal

2and
ground.
Voltage: Battery voltage
OK
NG
Check harness for open
or short between fuse
and security indicator
lamp.
CHECK INDICATOR LAMP.
OK
NG
Replace indicator lamp.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connector.
2. Disconnect security indicator lamp
connector.
3. Check continuity between NATS
IMMU terminal

6and ground.
Continuity should exist intermit-
tently.
OK
NG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initialisa-
tion with CON-
SULT-II.
For the operation
of initialisation,
refer to“CON-
SULT-II operation
manual NATS”.
Check harness for open or short
between security indicator and NATS
IMMU.
YEL482B
Security indicator
lamp connector
YEL483B
IMMU connector









NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont’d)
EL-359