Page 2383 of 4770
CO03B±04
± COOLING (1MZ±FE)COOLANT
CO±1
1609 Author: Date:
COOLANT
INSPECTION
1. CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR
The engine coolant level should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ''Toyota Long Life Coolantº or Equivalent up to the ºFULLº line.
2. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap from the water outlet.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot, as fluid and steam can be blown out under pressure.
(b) There should not be any excessive deposits of rust or scale around the radiator cap or water outlet
filler hole, and the coolant should be free from oil.
If excessively dirty, clean the coolant passages and replace the coolant.
(c) Reinstall the radiator cap.
Page 2390 of 4770
CO0SO±01
P12942
CO±8
± COOLING (1MZ±FE)WATER PUMP
1616 Author: Date:
INSTALLATION
1. INSTALL WATER PUMP
Install a new gasket and the water pump with the 4 bolts and 2
nuts.
Torque: 8 N´m (80 kgf´cm, 69 in.´lbf)
NOTICE:
Do not get oil on the gasket.
2. INSTALL NO.3 TIMING BELT COVER
(See page EM±57)
3. INSTALL NO.2 IDLER PULLEY
(See page EM±21)
4. INSTALL CAMSHAFT TIMING PULLEYS
(See page EM±21)
5. INSTALL TIMING BELT
(See page EM±21)
6. FILL WITH ENGINE COOLANT
7. START ENGINE AND CHECK FOR LEAKS
8. RECHECK ENGINE COOLANT LEVEL
Page 2400 of 4770

CO03O±03
S04725
B05937
Lower
Hose
Oil
Cooler
Hose
CO±18
± COOLING (1MZ±FE)RADIATOR
1626 Author: Date:
REMOVAL
HINT:
At the time of installation, please refer to the following
items.
Start the engine, and check for coolant and A/T fluid
leaks.
Check the A/T fluid level. (See page DI±438)
1. DRAIN ENGINE COOLANT
2. CANADA:
DISCONNECT RELAY BLOCK (FOR DAYTIME
RUNNING LIGHT SYSTEM) FROM BATTERY
HOLD±DOWN CLAMP
3. DISCONNECT UPPER RADIATOR HOSE FROM
RADIATOR
4. DISCONNECT LOWER RADIATOR HOSE FROM
WATER INLET PIPE
5. DISCONNECT A/T OIL COOLER HOSES FROM OIL
COOLER PIPES
6. DISCONNECT NO.1 AND NO.2 COOLING FAN
CONNECTORS
7. DISCONNECT NO.1 ECT SWITCH WIRE CONNECTOR
8. REMOVE RADIATOR AND COOLING FANS
ASSEMBLY
(a) Remove the 2 bolts and 2 upper supports.
Torque: 12.8 N´m (130 kgf´cm, 9 ft´lbf)
(b) Lift out the radiator, and remove the radiator and cooling
fans assembly.
(c) Remove the 2 lower supports.
9. REMOVE A/T OIL COOLER HOSES FROM
RADIATOR
10. REMOVE LOWER RADIATOR HOSE FROM
RADIATOR
Page 2429 of 4770
P00495
Outside
Inside
± DIAGNOSTICSENGINE (5S±FE)
DI±9
244 Author: Date:
2 Is engine cranked?
NO Proceed to page ST±2 and continue to
troubleshoot.
YES
3 Does engine start?
NO Go to step 7.
YES
4 Check air filter.
PREPARATION:
Remove the air filter.
CHECK:
Visually check that the air filter is not dirty or excessive oily.
HINT:
If necessary, clean the filter with compressed air. First blow from
inside thoroughly, then blow from outside of the filter.
NG Repair or replace.
OK
Page 2435 of 4770

± DIAGNOSTICSENGINE (5S±FE)
DI±15
250 Author: Date:
(b) TOYOTA Enhanced Signals.
TOYOTA hand±held tester displayMeasurement ItemNormal Condition*1
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 rpm
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 0 g/r
INJECTORFuel injection time for cylinder No.1Idling: 2.9 ~ 5.1 ms
IAC DUTY RATIOIntake Air Control Valve Duty Ratio
Opening ratio rotary solenoid type IAC valveIdling: 25 ~ 62 %
STARTER SIGStarter SignalCranking: ON
CTP SIGClosed Throttle Position SignalThrottle fully closed: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SIGPark/Neutral Position Switch SignalP or N position: ON
ELECTCL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
PS OIL PRESS SWPower Steering Oil Pressure Switch SignalTurn steering wheel: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully
closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut during very light loadFuel cut operating: ON
CYL#1, CYL#2, CYL#3, CYL#4Abnormal revolution variation for each cylinder0 %
IGNITIONTotal number of ignition for every 1,000 revolu-
tions0 ~ 2,000 rpm
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
A/C CUT SIGA/C Cut SignalA/C S/W OFF: ON
A/C MAG CLUTCHA/C Switch SignalA/C ON: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: Avove 30 %
VAPOR PRESS VSVVapor Pressure VSV SignalVSV operating: ON
TOTAL FT B1Total Fuel Trim Bank 1: Average value for fuel
trim system of bank 1Idling: 0.8 ~ 1.2 V
O2 LR B1, S1 *2
Heated Oxygen Sensor Lean Rich Bank 1 Sen-
sor 1: Response time for oxygen sensor output to
switch from lean to rich
Idling after warming up: 0 ~ 1,000 msec.
O2 RL B1, S1 *2
Heated Oxygen Sensor Rich Lean Bank 1 Sen-
sor 1: Response time for oxygen sensor output to
switch from rich to lean
Idling after warming up: 0 ~ 1,000 msec.
*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is at N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*2: Except California Specification vehicles.
Page 2439 of 4770

± DIAGNOSTICSENGINE (5S±FE)
DI±19
254 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMIL*1Memory
P0500
(DI±145)Vehicle Speed Sensor
Malfunction
Combination meter
Open or short in No.1 vehicle speed sensor circuit
No.1 vehicle speed sensor
ECM
P0505
(DI±148)Idle Control System
Malfunction
IAC valve is stuck or closed
Open or short in IAC valve circuit
Open or short in A/C switch circuit
Air intake (hose loose)
ECM
*1: MIL lights up
2. MANUFACTURER CONTROLLED
DTC No.
(See Page)Detection ItemTrouble AreaMIL*1Memory
*2
P1130
(DI±152)A/F Sensor Circuit
Range/Performance MalfunctionOpen or short in A/F sensor circuit
A/F sensor
ECM
*2
P1133
(DI±157)A/F Sensor Circuit Response
MalfunctionA/F sensor
*2
P1135
(DI±161)A/F Sensor Heater Circuit
MalfunctionOpen or short in heater circuit of A/F sensor
A/F sensor heater
ECM
P1300
(DI±163)Igniter Circuit Malfunction (No.1)
Open or short in IGF or IGT circuit from igniter to ECM
Ignition coil (No.1)
ECM
P1310
(DI±163)Igniter Circuit Malfunction (No.2)
Open or short in IGF or IGT circuit from igniter to ECM
Ignition coil (No.2)
ECM
P1335
(DI±169)Crankshaft Position Sensor Cir-
cuit Malfunction
(During engine running)Open short in crankshaft position sensor circuit
Crankshaft position sensor
ECM
±
*3
P1520
(DI±170)Stop Light Switch Signal Mal-
functionShort in stop light switch signal circuit
Stop light switch
ECM
P1600
(DI±173)ECM BATT MalfunctionOpen in back up power source circuit
ECM
*3
P1780
(DI±175)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM
*1: MIL lights up
*
2: Only for California Specification vehicles
*
3: Only for A/T models
Page 2441 of 4770
DI1JS±03
A03431
A03430
A03537
Crankshaft
Position
SensorVSV for EGRDLC1Camshaft Position
SensorInjectorECMThrottle Position SensorManifold Absolute
Pressure Sensor
Combination Meter
(Speedometer)
DLC3
Heated Oxygen
Sensor
(Bank 1 Sensor 2)
Intake Air Temp.
Sensor
VSV for EVAP
Idle Air Control
Valve
Ignition Coil (No.1, No.2) Park/Neutral Position
Switch Engine Coolant Temp.
Sensor Heated Oxygen Sensor
(Bank 1 Sensor 1) *1 A/F Sensor *2 Knock
Sensor 1
*1: Except California Specification vehicles
*2: Only for California Specification vehicles
Vapor Pressure Sensor
Charcoal Canister
VSV for
Vapor Pressure Sensor
± DIAGNOSTICSENGINE (5S±FE)
DI±21
256 Author: Date:
PARTS LOCATION
Page 2442 of 4770

DI1JT±03
D00032
E9E8E7
ECM Terminals DI±22
± DIAGNOSTICSENGINE (5S±FE)
257 Author: Date:
TERMINALS OF ECM
Without engine immobiliser system
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
BATT (E7 ± 1) ± E1 (E9 ± 14)B ± Y e BRAlways9 ~ 14
+ B (E7 ± 12) ± E1 (E9 ± 14)B ± Y e BRIG switch ON9 ~ 14
VC (E8 ± 1) ± E2 (E8 ± 9)Ye BRIG switch ON4.5 ~ 5.5
VTA (E8 11) E2 (E8 9)LGBR
IG switch ON
Throttle valve fully closed0.3 ~ 1.0
VTA (E8 ± 11) ± E2 (E8 ± 9)LG e BRIG switch ON
Throttle valve fully open3.2 ~ 4.9
PIM (E8 2) E2 (E8 9)BYBR
IG switch ON3.3 ~ 3.9
PIM (E8 ± 2) ± E2 (E8 ± 9)B ± Y e BRApply vacuum 26.7 kPa (200 mmHg, 7.9 in.Hg)2.5 ~ 3.1
THA (E8 ± 3) ± E2 (E8 ± 9)Y ± B e BRIdling, Intake air temp. 20°C (68° F)0.5 ~ 3.4
THW (E8 ± 4) ± E2 (E8 ± 9)G ± B e BRIdling, Engine coolant temp. 80°C (176°F) 0.2 ~ 1.0
STA (E7 11) E1 (E9 14)*1 GR e BRCranking6.0 or moreSTA (E7 ± 11) ± E1 (E9 ± 14) *2 B ± O e BRCranking6.0 or more
IG switch ON9 ~ 14
#10 (E9 ± 12) ± E01 (E9 ± 13) L e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#20 (E9 ± 11) ± E01 (E9 ± 13)R e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#30 (E9 ± 25) ± E01 (E9 ± 13)Y e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#40 (E9 ± 24) ± E01 (E9 ± 13)W e BRIdlingPulse generation
(See page DI±89)
IGT1 (E9 ± 20) ± E1 (E9 ± 14)B e BRIdlingPulse generation
(See page DI±163)
IGT2 (E9 ± 19) ± E1 (E9 ± 14)Y ± R e BRIdlingPulse generation
(See page DI±163)
IG switch ON, Disconnect ignition coil connector4.5 ~ 5.5
IGF (E9 ± 3) ± E1 (E9 ± 14)W ± R e BRIdlingPulse generation
(See page DI±163)
*1: TMC made
*2: TMMK made