Egr TOYOTA TERCEL 1996 Service Repair Manual

- INTRODUCTIONFOR ALL OF VEHICLES
IN-13
13 Author
: Date
:
1996 TERCEL (RM440U)
(f) AIRBAG SENSOR ASSEMBLY
(1) Never reuse the airbag sensor assembly involved
in a collision when the SRS has deployed.
(2) The connectors to the airbag sensor assembly
should be connected or disconnected with the sen-
sor mounted on the floor. If the connectors are con-
nected or disconnected while the airbag sensor as-
sembly is not mounted to the floor, it could cause
undesired deployment of the supplemental re-
straint system.
(3) Work must be started after 90 seconds from the
time the ignition switch is turned to the ºLOCKº posi-
tion and the negative (-) terminal cable is discon-
nected from the battery, even if only loosing the set
bolts of the airbag sensor assembly.
(g) WIRE HARNESS AND CONNECTOR
The SRS wire harness is integrated with the instrument
panel wire harness assembly and floor wire harness as-
sembly. The wires for the SRS wire harness are encased
in a yellow corrugated tube. All the connectors for the sys-
tem are also a standard yellow color. If the SRS wire har-
ness becomes disconnected or the connector becomes
broken due to an accident, etc., repair or replace it as
shown on page RS-37.

IN-32
- INTRODUCTIONTERMS
32 Author
: Date
:
1996 TERCEL (RM440U) CW
Curb Weight
DCDirect Current
DEFDefogger
DFLDeflector
DIFF.Differential
DIFF. LOCKDifferential Lock
D/INJDirect Injection
DLIDistributorless Ignition
DOHCDouble Over Head Cam
DPDash Pot
DSDead Soak
DSPDigital Signal Processor
EBDElectronic Brake Force Distribution
ECAMEngine Control And Measurement System
ECDElectronic Controlled Diesel
ECDYEddy Current Dynamometer
ECUElectronic Control Unit
EDElectro-Deposited Coating
EDICElectric Diesel Injection Control
EDUElectronic Driving Unit
EFIElectronic Fuel Injection
E/GEngine
EGR-VMExhaust Gas Recirculation-Vacuum Modulator
ELREmergency Locking Retractor
ENGEngine
ESAElectronic Spark Advance
ETCSElectronic Throttle Control System
EVPEvaporator
E-VR VElectric Vacuum Regulating Valve
EXHExhaust
FEFuel Economy
FFFront-Engine Front-Wheel-Drive
F/GFuel Gage
FIPGFormed In Place Gasket
FLFusible Link
F/PFuel Pump
FPUFuel Pressure Up
FrFront
FRFront-Engine Rear-Wheel-Drive
F/WFlywheel
FW/DFlywheel Damper
FWDFront-Wheel-Drive
GASGasoline
GSAGear Shift Actuator
GNDGround
HACHigh Altitude Compensator

- INTRODUCTIONTERMS
IN-33
33 Author
: Date
:
1996 TERCEL (RM440U) H/B
Hatchback
H-FUSEHigh Current Fuse
HIHigh
HIDHigh Intensity Discharge (Head Lamp)
HPUHydraulic Power Unit
HSGHousing
HTHard Top
HWSHeated Windshield System
IACIdle Air Control
ICIntegrated circuit
IDIIndirect Diesel Injection
IFSIndependent Front Suspension
IGIgnition
IIAIntegrated Ignition Assembly
INIntake (Manifold, Valve)
INTIntermittent
I/PInstrument Panel
IRSIndependent Rear Suspension
J/BJunction Block
J/CJunction Connector
KDKick-Down
LANLocal Area Network
LBLiftback
LCDLiquid Crystal Display
LEDLight Emitting Diode
LHLeft-Hand
LHDLeft-Hand Drive
L/H/WLength, Height, Width
LLCLong-Life Coolant
LNGLiquified Natural Gas
LOLow
LPGLiquified Petroleum Gas
LSDLimited Slip Differential
LSP & PVLoad Sensing Proportioning And Bypass Valve
LSPVLoad Sensing Proportioning Valve
MAX.Maximum
M-FUSEMedium Current Fuse
MICMicrophone
MILMalfunction Indicator Lamp
MIN.Minimum
MPMultipurpose
MPXMultiplex Communication System
M/TManual Transmission (Transaxle)
MTMount
MTGMounting
NNeutral

IN0CI-02
IN-36
- INTRODUCTIONTERMS
1996 TERCEL (RM440U)
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE rec-
ommendations, as well as their TOYOTA equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )--ABBREVIATIONS
A/CAir ConditioningAir Conditioner
ACLAir CleanerAir Cleaner, A/CL
AIRSecondary Air InjectionAir Injection (AI)
APAccelerator Pedal-
B+Battery Positive Voltage+B, Battery Voltage
BAROBarometric PressureHAC
CACCharge Air CoolerIntercooler
CARBCarburetorCarburetor
CFIContinuous Fuel Injection-
CKPCrankshaft PositionCrank Angle
CLClosed LoopClosed Loop
CMPCamshaft PositionCam Angle
CPPClutch Pedal Position-
CTOXContinuous Trap Oxidizer-
CTPClosed Throttle PositionLL ON, Idle ON
DFIDirect Fuel Injection (Diesel)Direct Injection (DI)
DIDistributor Ignition-
DLC1
DLC2
DLC3Data Link Connector 1
Data Link Connector 2
Data Link Connector 31: Check Connector
2: Total Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector
DTCDiagnostic Trouble CodeDiagnostic Code
DTMDiagnostic Test Mode-
ECLEngine Control Level-
ECMEngine Control ModuleEngine ECU (Electronic Control Unit)
ECTEngine Coolant TemperatureCoolant Temperature, Water Temperature (THW)
EEPROMElectrically Erasable Programmable Read Only Memory
Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)
EFEEarly Fuel EvaporationCold Mixture Heater (CMH), Heat Control Valve (HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR)
EIElectronic IgnitionTOYOTA Distributorless Ignition (TDI)
EMEngine ModificationEngine Modification (EM)
EPROMErasable Programmable Read Only MemoryProgrammable Read Only Memory (PROM)
EVAPEvaporative EmissionEvaporative Emission Control (EVAP)
FCFan Control-
FEEPROMFlash Electrically Erasable Programmable
Read Only Memory-
FEPROMFlash Erasable Programmable Read Only Memory-
FFFlexible Fuel-
FPFuel PumpFuel Pump
GENGeneratorAlternator
GNDGroundGround (GND)

SS0N6-04
SS-8
- SERVICE SPECIFICATIONSENGINE MECHANICAL
1996 TERCEL (RM440U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Cylinder head cover x Cylinder head7.07061 in.´lbf
No. 2 idler pulley x Cylinder head2828020
Camshaft timing pulley x Camshaft5151037
No. 1 idler pulley x Cylinder block18.518513
Crankshaft pulley x Crankshaft1551,55011 2
No. 2 crankshaft pulley x Crankshaft pulley1919514
RH engine mounting insulator x RH engine mounting bracket6465047
RH engine mounting insulator x Body7374054
No. 1 engine hanger x Cylinder head2121015
No. 2 engine hanger x Cylinder head5353038
Cylinder head x Cylinder block 1st
2nd45
Turn 90°450
Turn 90°33
Turn 90°
Camshaft bearing cap x Cylinder head131309
Intake manifold x Cylinder head19.519514
Intake manifold stay x Intake manifold2020015
Intake manifold stay x Cylinder block2020015
Exhaust manifold x Cylinder head4848035
Exhaust manifold stay x Cylinder block4040029
Exhaust manifold stay x Exhaust manifold4040029
Exhaust manifold heat insulator x Exhaust manifold8.08069 in.´lbf
Water outlet housing x Cylinder head3030022
Camshaft position sensor x Cylinder head8.08069 in.´lbf
EGR VSV x Cylinder head17.517513
EGR valve x Cylinder head17.517513
EGR pipe x EGR valve4040029
EGR pipe x Intake manifold3030022
PS ump bracket x Cylinder head4344032
Fuel inlet hose x Fuel filter2930022
Front exhaust pipe x Exhaust manifold6263049
Connecting rod cap x Connecting rod4040029
Crankshaft bearing cap x Cylinder block5858042
Rear oil seal retainer x Cylinder block7.57565 in.´lbf
Oil filter union x Cylinder block2525018
Oil pressure switch x Cylinder block131309
RH engine mounting bracket x Cylinder block5959043
Knock sensor x Cylinder block4545033
Generator bracket x Cylinder block2424018
Rear end plate x Cylinder block101007
Flywheel x Crankshaft9090065
Drive plate x Crankshaft9090065
Drive plate x Torque converter clutch2525018
A/C compressor bracket x Cylinder block2728020
PS pump adjusting strut x Cylinder block2121015

SS1IT-01
SS-10
- SERVICE SPECIFICATIONSEMISSION CONTROL
140 Author
: Date
:
1996 TERCEL (RM440U)
EMISSION CONTROL
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
TVV x Water outlet housing3535026
EGR valve x Cylinder head3030022
EGR pipe x Intake manifold Nut3030022
EGR valve x EGR pipe Union nut4040030

SS0N7-04
- SERVICE SPECIFICATIONSMFI
SS-1 1
141 Author
: Date
:
1996 TERCEL (RM440U)
MFI
SERVICE DATA
Fuel pressure
regulatorFuel pressure at no vacuum281 - 287 kPa (2.87 - 2.93 kgf/cm2, 40.8 - 41.7 psi)
Fuel pumpResistance at 20°C (68°F)0.2 - 3.0 W
InjectorResistance at 20°C (68°F)
Injection volume
Difference between each cylinder
Fuel leakage13.4 - 14.2 W
39 - 49 cm3 (2.4 - 3.0 cu in.) per 15 sec.
5 cm3 (0.31 cu in.) or less
1 drop or less per 3 min.
Throttle bodyThrottle body fully closed angle6°
Throttle position
sensorResistance
0 mm (0 in.) VTA - E2
0.50 mm (0.020 in.)IDL - E2
0.70 mm (0.028 in.)IDL - E2
Throttle valve fully open VTA - E2
- VC - E2
0.2 - 5.7 kW
2.3 kW or less
Infinity
2.0 - 10.2 kW
2.5 - 5.9 kW
IAC valveResistance +B - RSO (or RSC)
Cold (-10°C (14°F) to 50°C (122°F))
Hot (50°C (122°F) to 100°C (212°F))
17.0 - 24.5 W
21.5 - 28.5 W
VSV for EGRResistance at 20°C (68°F)33 - 39 W
ECT sensor and
IAT sensorResistance at -20°C (-4°F)
at 0°C (32°F)
at 20°C (68°F)
at 40°C (104°F)
at 60°C (140°F)
at 80°C (176°F)10 - 20 kW
4 - 7 kW
2 - 3 kW
0.9 - 1.3 kW
0.4 - 0.7 kW
0.2 - 0.4 kW
MAP sensorPower source voltage4.5 - 5.5 V
Main heated
oxygen sensorHeater coil resistance at 20°C (68°F)11 - 16 W
Sub heated
oxygen sensorHeater coil resistance at 20°C (68°F)11 - 16 W
Fuel cut rpmFuel return rpm900 rpm

SS0ME-05
SS-40
- SERVICE SPECIFICATIONSBODY ELECTRICAL
170 Author
: Date
:
1996 TERCEL (RM440U)
BODY ELECTRICAL
SERVICE DATA
INTEGRATION RELAY
Key Unlock Warning System:
2 - Ground (Ignition switch LOCK or ACC)No voltage
2 - Ground (Ignition switch ON)Battery positive voltage
3 - Ground (Constant)Battery positive voltage
9 - Ground (Ignition switch LOCK or ACC)No voltage
9 - Ground (Ignition switch ON)Battery positive voltage
12 - Ground (Constant)Battery positive voltage
DAYTIME RUNNING LIGHT MAIN RELAY
2 - Ground (Ignition switch LOCK or ACC)No voltage
2 - Ground (Ignition switch ON)Battery positive voltage
18 - Ground (Ignition switch LOCK or ACC)No voltage
18 - Ground (Ignition switch ON)Battery positive voltage
4 - Ground (Constant)Battery positive voltage
6 - Ground (Constant)Battery positive voltage
10 - Ground (Constant)Battery positive voltage
11 - Ground (Engine stop)No voltage
11 - Ground (Engine running)Battery positive voltage
15 - Ground (Constant)Battery positive voltage
TURN SIGNAL FLASHER
Flashes/Minute60 - 120
SPEEDOMETER (USING A SPEEDOMETER TESTER)
Standard indication (mph)Allowable range (mph)
2018 - 24
4038 - 45
6059 - 67
8079 - 88
100100 - 110
Standard indication (km/h)Allowable range (km/h)
2016 - 26
4038 - 48
6059 - 69
8076 - 90
10096 - 110
120114 - 131
140134 - 152
160152 - 174
TACHOMETER (ON-VEHICLE)DC 13.5 V 25°C (77°F)
Standard indication (rpm)Allowable range (rpm)
700610 - 750
3,0002,850 - 3,150
5,0004,850 - 5,150
7,0006,790 - 7,210

DI-56
- DIAGNOSTICSENGINE
1996 TERCEL (RM440U)
OK
6 Check EGR system (See page EC-8).
NG Replace injector.
OK
7 Check manifold absolute pressure sensor and engine coolant temp. sensor (See
page DI-41 and DI-45).
NG Repair or replace.
OK
Check compression pressure (See page EM-3), valve clearance (See page EM-4) and valve tim-
ing (See page EM-17).

A15705
A15706
- DIAGNOSTICSENGINE
DI-65
1996 TERCEL (RM440U)
DTC P0401 Exhaust Gas Recirculation Flow Insufficient
Detected
CIRCUIT DESCRIPTION
The EGR system recirculates exhaust gas, which is controlled to the proper quantity to suit the driving condi-
tions, into the intake air mixture to slow down combustion, reduce the combustion temp. and reduce NOx
emissions. The amount of EGR is regulated by the EGR vacuum modulator according to the engine load.
If even one of the following conditions is fulfilled, the VSV is
turned OFF by a signal from the ECM.
This results in atmospheric air acting on the EGR valve, closing
the EGR valve and shutting off the exhaust gas (EGR cut-off).

Before the engine is warmed up.

During deceleration (throttle valve closed).

Light engine load (amount of intake air very small).

Engine speed over 4,400 rpm.

Engine racing.
DTC No.DTC Detection ConditionTrouble Area
P0401
After the engine is warmed up, the intake manifold absolute
pressure is larger than the value calculated by the ECM while
the EGR system is ON.
(2 trip detection logic)

EGR valve stuck closed

Open or short in VSV circuit for EGR

Vacuum or EGR hose disconnected

Manifold absolute pressure sensor

EGR VSV open or close malfunction

ECM
WIRING DIAGRAM
DI95P-01