2001 NISSAN ALMERA N16 EC-163

SEF594K
Component DescriptionNJEC0072The engine coolant temperature sensor is used to detect the
engine coolant temperature. The sensor modifies a voltage signal
from the ECM. The modified signal returns to the ECM as the
engine coolant temperature input. The sensor uses a thermistor
which is sensitive to the change in temperature. The electrical
resistance of the thermistor decreases as temperature increases.
SEF012P

Engine coolant temperature
ÉC (ÉF)Voltage*
VResistance
kW
þ10 (14) 4.4 7.0 - 11.4
20 (68) 3.5 2.1 - 2.9
50 (122) 2.2 0.68 - 1.00
90 (194) 0.9 0.236 - 0.260
*: These data are reference values and are measured between ECM terminal 70
(Engine coolant temperature sensor) and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.
CONSULT-II Reference Value in Data Monitor
Mode
NJEC0073
MONITOR ITEM CONDITION SPECIFICATION
COOLAN TEMP/S+Engine: After warming up More than 70ÉC (158ÉF)
On Board Diagnosis LogicNJEC0074
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0115
0115+An excessively high or low voltage from the sensor is
sent to ECM.*+Harness or connectors
(The sensor circuit is open or shorted.)
+Engine coolant temperature sensor
*: When this malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC P0115 ENGINE COOLANT TEMPERATURE SENSOR (ECTS)
(CIRCUIT)
QG
Component Description
EC-163

Engine control module (ECM) ....... EC-327, 554,
604, 664, 666, 670, 672
Engine control system diagram and
chart .............................................. EC-26, 503
Engine coolant temperature sensor
(ECTS) ........................................ EC-163, 572
Engine fail-safe system ........................... EC-123
Engine oil precautions .................................. GI-7
Engine outer component parts ................. EM-11
Engine removal ................................ EM-49, 136
Engine room - See Engine
compartment .......................................... BT-75
Engine serial number ................................. GI-41
Evaporative emission (EVAP)
system ................................................... EC-33
Exhaust gas recirculation (EGR)
valve .................................... EC-285, 353, 400
Exhaust system ................................... FE-11, 27
Exterior ...................................................... BT-47
F
F/PUMP - Wiring diagram ....................... EC-466
FR02 - Wiring diagram ... EC-179, 198, 205, 374
FR02/H - Wiring diagram ................ EC-211, 380
FUEL - Wiring diagram ................... EC-250, 257
Fan switch ................................................. HA-60
Final drive (FF A/T) .................................. AT-424
Final drive (FF M/T) .............. MT-43, 77, 93, 107
Finisher, interior - See Trim ....................... BT-31
Finisher, trunk lid ....................................... BT-45
Floor trim ................................................... BT-31
Fluid temperature sensor (A/T) ................ AT-192
Fluids ........................................................ MA-20
Flywheel (clutch) ....................................... CL-22
Flywheel runout ................................ EM-60, 153
Fog lamp, front, removal and
installation ................................................ BT-7
Fog lamp, front .......................................... EL-60
Fork rod (M/T) .............................. MT-32, 56, 94
Forward clutch ......................................... AT-399
Freeze frame data .............................. EC-59, 70
Front axle .................................................... AX-2
Front bumper ............................................... BT-7
Front combination lamp removal and
installation ................................................ BT-7
Front disc brake ........................................ BR-27
Front door .................................................. BT-16
Front fog lamp removal and
installation ................................................ BT-7
Front fog lamp ........................................... EL-60
Front heated oxygen sensor (HO2S)
heater .......................................... EC-209, 379
Front heated oxygen sensor (HO2S) ..... EC-176,
183, 189, 195, 203, 373
Front seat belt ............................................. RS-5
Front seat .................................................. BT-56
Front suspension ........................................ SU-2
Front washer ............................................ EL-123Front wiper ............................................... EL-123
Fuel cut control (at no load & high
engine speed) ............................... EC-33, 507
Fuel gauge ................................................. EL-89
Fuel injection system .............. EC-248, 255, 505
Fuel injector ............................................ EC-446
Fuel precautions ........................................... GI-8
Fuel pressure check ................................. EC-38
Fuel pressure regulator ............................. EC-39
Fuel pressure release ............................... EC-38
Fuel pump relay ...................................... EC-464
Fuel pump ............................................... EC-464
Fuel system ........................................... FE-5, 16
Fuel tank vacuum relief valve ................... EC-34
Fuse block ............................................... EL-369
Fuse ........................................................... EL-22
Fusible link ................................................. EL-22
G
GLOW - Wiring diagram ......................... EC-677
Garage jack and safety stand .................... GI-45
Gauges ...................................................... EL-89
Gear components (M/T) ............... MT-31, 55, 93
Generator - See Alternator ....................... SC-27
Generic scan tool (GST) ........................... EC-92
Glass .......................................................... BT-17
Glow plug ................................................ EC-677
Glow relay ............................................... EC-677
Grease ...................................................... MA-20
Ground distribution .................................... EL-23
H
H/LAMP - Wiring diagram .......................... EL-40
HEATER - Wiring diagram ........................ HA-24
HFC134a (R134a) system
recaution .................................................. HA-2
HFC134a (R134a) system service
procedure .............................................. HA-84
HFC134a (R134a) system service
tools ....................................................... HA-11
HFC134a system service equipment
precaution ................................................ HA-6
HORN - Wiring diagram .......................... EL-135
HSEAT - Wiring diagram ......................... EL-163
Harness connector ...................................... EL-5
Harness layout ......................................... EL-324
Hazard warning lamp ................................ EL-65
Headlamp removal and installation ............. BT-7
Headlamp washer .................................... EL-133
Headlamp .................................................. EL-40
Headlining - See Roof trim ........................ BT-43
Heated oxygen sensor (HO2S)
(front) .......... EC-176, 183, 189, 195, 203, 373
Heated oxygen sensor (HO2S) heater
(front) ........................................... EC-209, 379
ALPHABETICAL INDEX
IDX-4