2001 NISSAN PICK-UP light

SYMPTOM MATRIX CHART 1
(Self-diagnosis related item)
SYMPTOMDisplayed ªSELF-DIAG
RESULTSº on CONSULT-II
screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning
part or mode)REFERENCE PART NO.
OF ILLUSTRATION ON
DIAGNOSTIC SYSTEM
DIAGRAM
+Security indicator lighting
up*
+Engine does not startECM INT CIRC-IMMUPROCEDURE 1
(EL-3152)ECM B
CHAIN OF ECM-IMMUPROCEDURE 2
(EL-3153)In rare case, ªCHAIN OF
ECM-IMMU might be stored
during key registration
procedure, even if the sys-
tem is not malfunctioning.Ð
Open circuit in battery volt-
age line of IMMU circuitC1
Open circuit in ignition line
of IMMU circuitC2
Open circuit in ground line
of IMMU circuitC3
Open circuit in communica-
tion line between IMMU and
ECMC4
Short circuit between IMMU
and ECM communication
line and battery voltage lineC4
Short circuit between IMMU
and ECM communication
line and ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-3155)Unregistered key D
IMMU A
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-3156)Malfunction of key ID chip E
IMMU A
Open circuit in ground line
of dongle unit circuitC6
Open or short circuit in
communication line between
IMMU and dongle unitC5
Dongle unit G
+Security indicator lighting
up*
+Engine hard to startID DISCORD, IMM-ECMPROCEDURE 5
(EL-3157)System initialization has not
yet been completed.F
ECM B
LOCK MODEPROCEDURE 6
(EL-3158)LOCK MODE D
*: When NATS detects trouble, the security indicator lights up while ignition key is in the ªONº position.
*: When the vehicle is equipped with dongle unit, the security indicator blinks 6 times just after ignition switch is turned to ON. Then
the security indicator will light up while ignition key is in the ON position.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-3150

SYMPTOM MATRIX CHART 2
(Non self-diagnosis related item)
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART NO. OF
ILLUSTRATION ON DIAG-
NOSTIC SYSTEM DIAGRAM
Security ind. does not light up.PROCEDURE 7
(EL-3159)Security ind. Ð
Open circuit between Fuse and NATS IMMU Ð
Continuation of initialization mode Ð
NATS IMMU A
Security ind. does not blink
just after initialization even if
the vehicle is equipped with
dongle unit.
PROCEDURE 8
(EL-3160)NATS might be initialized without connecting
dongle unit properly.Ð
Open circuit in ground line of dongle unit circuit C6
Security ind. does not blink
just after ignition switch is
turned to ON when some mal-
function related to NATS is
detected even if the vehicle is
equipped with dongle unit.Open or short circuit in communication line
between IMMU and dongle unitC5
Dongle unit G
DIAGNOSTIC SYSTEM DIAGRAM
SEL028X
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-3151

DIAGNOSTIC PROCEDURE 7
ªSECURITY IND. DOES NOT LIGHT UPº
Check 10A fuse [No.6, located in the
fuse block (J/B)].
OK
cNG
Replace fuse.
NATS INITIALIZATION
1) Install the 10A fuse.
2) Perform initialization with CON-
SULT-II.
For the operation of
initialization, refer to ªCON-
SULT-II operation manual
NATSº.
Turn ignition switch ªOFFº.
Start engine and turn ignition switch
ªOFFº.
Check the security ind. lighting.
NG
cOK
END
Check voltage between security ind. con-
nectorM55terminalV1(R/G) and
ground.
Voltage: Battery voltage
OK
cNG
Check harness for open or
short between fuse and
security ind.
CHECK INDICATOR LAMP.
OK
cNG
Repair harness.
CHECK NATS IMMU FUNCTION.
1. Connect NATS IMMU connectorM68.
2. Disconnect security ind. connector
M55.
3. Check continuity between NATS IMMU
connector
M68terminalV6(L) and
ground.
Continuity should exist intermit-
tently.
OK
cNG
NATS IMMU is malfunc-
tioning. Replace IMMU.
Perform initializa-
tion with CON-
SULT-II.
For the operation
of initialization,
refer to ªCON-
SULT-II operation
manual NATSº.
Check harness for open or short between
security indicator and NATS IMMU.
SEL931UC
SEL164XA
.
.
.
.
.
.
.
.
.
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-3159

Use the chart below to find out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to find
the location (page number) of each wiring diagram.
Code Section Wiring Diagram Name
AAC/V EC IACV-AAC Valve
ABS BR Anti-lock Brake System
A/C, A HA Auto Air Conditioner
A/C, M HA Manual Air Conditioner
ACC/SW EC Accelerator Switch
A/CCOT EC Air Conditioner Control
AIRREG EC IACV-Air Regulator
APS EC Accelerator Position Sensor
AT/IND EL A/T Indicator
AUDIO EL Audio
BACK/L EL Back-up Lamp
BA/FTS ATBATT/A/T Fluid Temperature Sensor
and TCM Power Supply
BOOST EC Turbocharger Boost Sensor
BRK/SW EC Brake Switch Signal
CHARGE EL Charging System
CHIME EL Warning Chime
CHOKE EC Automatic Choke
CIGAR EL Cigarette Lighter
CKPS EC Crankshaft Position Sensor
CLOCK EL Clock
CMPS EC Camshaft Position Sensor
COOL/F LC, EC Cooling Fan Control
DEF ELRear Window Defogger and Mirror
Defogger
DIMDIP ELHeadlamp Ð With Dim-dip Lamp
System
D/LOCK EL Power Door Lock
DTRL ELHeadlamp Ð With Daytime Light
System
ECMRLY EC ECM Relay
ECTS ECEngine Coolant Temperature
Sensor
EGRC/V EC EGRC Ð Solenoid Valve
EGVC/V EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal
FCUT EC Fuel Cut Solenoid Valve
FICD EC IACV-FICD Solenoid Valve
FIPOT EC ISC-FI Pot
FPCM EC Fuel Pump Control Module
F/PUMP EC Fuel PumpCode Section Wiring Diagram Name
GLOW EC Quick-glow System
H/AIM EL Headlamp Aiming Control
HEATER HA Heater
HEATUP EC Heat up Switch
H/LAMP EL Headlamp
HLC EL Headlamp Washer
HO2S EC Heated Oxygen Sensor
HORN EL Horn
H/SEAT EL Heated Seat
IATS EC Intake Air Temperature Sensor
IGN EC Ignition System
IGN/SG EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
INJPMP ECElectronic Control Fuel Injection
Pump
INT/L EL Spot Lamp
INT/V ECIntake Air Control Valve Control
Solenoid Valve
KS EC Knock Sensor
LOAD EC Electric Load Signal
LPSV AT Line Pressure Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN EC, ATMain Power Supply and Ground Cir-
cuit
METER ELSpeedometer, Tachometer, Temp.
and Fuel Gauges
MIL/DL EC MIL and Data Link Connectors
MIRROR EL Power Door Mirror
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-theft System
NONDTC AT Non-detectable Items
O2H1B1 EC Heated Oxygen Sensor 1 Heater
O2H2B1 EC Heated Oxygen Sensor 2 Heater
O2S1B1 EC Heated Oxygen Sensor 1
O2S2B1 EC Heated Oxygen Sensor 2
OVRCSV AT Overrun Clutch Solenoid Valve
P/ANT EL Power Antenna
PGC/V ECEVAP Canister Purge
Control Solenoid Valve
PLA EC Partial Load Advance Control
WIRING DIAGRAM CODES (CELL CODES)
EL-3194