1998 NISSAN PICK-UP EC-127

Heated Oxygen Sensor Heater
Ð LHD Models Ð
SYSTEM DESCRIPTION
Camshaft position sensorcEngine speedECM
(ECCS
control
mod-
ule)c
Heated
oxygen
sensor
heater
The ECM performs ON/OFF control of the heated
oxygen sensor heater corresponding to the engine
speed.OPERATION
Engine speed rpm Heated oxygen sensor heater
Above 3,200 OFF
Below 3,200 ON
ECM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values, and are measured between each terminal andV39(ECCS ground) with a voltme-
ter.
TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC voltage)
114 RHeated oxygen sensor
heaterEngine is running.
Engine speed is below 3,200 rpm.Approximately 0V
Engine is running.
Engine speed is above 3,200 rpm.BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMSKA
EC-127

HLC - Wiring diagram ................................ EL-130
HORN - Wiring diagram ............................. EL-132
H/SEAT - Wiring diagram........................... EL-152
Harness connector ......................................... EL-2
Harness connector inspection ...................... GI-18
Harness layout ........................................... EL-220
Hazard warning lamp ................................... EL-74
Headlamp ..................................................... EL-44
Headlamp aiming control ............................. EL-63
Headlamp leveler - See Headlamp
aiming control ........................................... EL-63
Headlamp washer ...................................... EL-130
Heated oxygen sensor (HO2S) ................. EC-123
Heated oxygen sensor heater ................... EC-127
Heated oxygen sensor inspection ............... MA-22
Heated seat .................................................. BT-32
Heated seat ................................................ EL-152
Height (Dimensions) ..................................... GI-44
Hood ............................................................... BT-5
Horn ............................................................ EL-132
How to erase DTC for ECCS OBD
system ...................................................... EC-36
I
IACV-AAC valve .................................EC-131, 135
IACV-FICD solenoid valve
(KA24 engine) ........................................ EC-168
IACV-FICD solenoid valve
(TD25 engine) ........................................ EC-231
IATS - Wiring diagram ............................... EC-110
IGN/SG - Wiring diagram .......................... EC-101
ILL - Wiring diagram..................................... EL-81
INJECT - Wiring diagram .......................... EC-144
INT/L - Wiring diagram ................................. EL-85
Identification plate ......................................... GI-42
Idle mixture ratio .......................................... EC-25
Idle speed .................................................... EC-25
Idle speed inspection .................................. MA-30
Ignition coil ................................................. EC-105
Ignition timing............................................... EC-25
Ignition wire inspection ................................ MA-21
Illumination ................................................... EL-81
Injection nozzle inspection .......................... MA-29
Injection nozzle .......................................... EC-186
Injector ............................................... EC-144, 148
Injector removal and installation .................. EC-23
Instrument panel .......................................... BT-12
Intake air temperature sensor ................... EC-109
Intake door control linkage
adjustment................................................ HA-47
Intake manifold .............................................. EM-9
Interior lamp ................................................. EL-85
Interior .......................................................... BT-15
J
Jacking points ................................................GI-47Journal bearing assembly
(propeller shaft) ........................................ PD-11
Journal bearing disassembly
(propeller shaft) ........................................ PD-10
Jump seat..................................................... BT-34
K
Keyless entry system - See Multi-remote
control system .............................................EL-173
Knuckle spindle ............................................ FA-18
L
LSV (Load sensing valve)...............................BR-7
Leaf spring (rear) ......................................... RA-13
Length (Dimensions) ..................................... GI-44
License lamp ................................................ EL-66
Lifting points .................................................. GI-47
Limited slip diff. adjustment (C200) ............. PD-41
Limited slip diff. adjustment (H233B) .......... PD-63
Limited slip diff. assembly (C200) ............... PD-43
Limited slip diff. assembly (H233B) ............. PD-64
Limited slip diff. disassembly (C200)........... PD-39
Limited slip diff. disassembly (H233B) ........ PD-61
Limited slip diff. inspection (C200) .............. PD-40
Limited slip diff. inspection (H233B) ............ PD-62
Liquid gasket application ............................... EM-1
Location of electrical units.......................... EL-217
Lock, door .................................................... BT-10
Lubricant (R134a) A/C ................................. HA-50
Lubricants .................................................... MA-12
Lubrication circuit (engine)
(KA24 engine) ............................................ LC-3
Lubrication circuit (engine)
(TD25 engine) .......................................... LC-12
Lubrication-locks, hinges and hood
latches ..................................................... MA-39
M
M/T major overhaul (FS5R30A) ...................MT-35
M/T major overhaul (FS5W71C) ................. MT-14
M/T removal and installation ....................... MT-11
MAFS - Wiring diagram ............................... EC-91
MAIN - Wiring diagram ................................ EC-76
METER - Wiring diagram ............................. EL-90
MIL & Data link connectors ....................... EC-173
MIRROR - Wiring diagram ......................... EL-150
MULTI - Wiring diagram ............................. EL-175
Main drive gear (M/T) (FS5R30A)............... MT-36
Main drive gear (M/T) (FS5W71C).............. MT-15
Main gear (Transfer) ...................................... TF-9
Mainshaft (M/T) (FS5R30A) ........................ MT-36
Mainshaft (M/T) (FS5W71C) ....................... MT-15
Mainshaft (Transfer) ....................................... TF-9
Maintenance (engine) (KA24 engine) ......... MA-15
ALPHABETICAL INDEX
IDX-5