Page 405 of 2053
1D2 -- 10 M161 ENGINE COOLING
D AEW OO M Y_2000
Tools Required
124589152100 Tester
Removal & Installation Procedure
1. Drain the coolant.
2. Disconnect the coolant hoses (8, 9, 10).
3. Take off the drive belt.
4. Unscrew the four bolts (6) from water pump pulley
and remove the pulley (7).
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
Notice:Hold the pulley with fan clutch holder 603 589
00 40 00 while removing the pulley.
5. Unscrew the bolts (1, 2, 3, 4) from water pump hous-
ing (5) and remove the water pump.
Installation Notice
Tightening
(1,2,3)9--11NSm
(80 -- 97 lb-in)
Tightening
Torque(4)22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
6. Clean the sealing surface.
7. Replace the gasket with new one.
Notice:Apply the sealant when the sealing surface of
water pump housing and coolant mounting area is clean.
8. Installation should follow the removal procedure in
the reverse order.
9. Check for leaks by starting the engine.
Page 406 of 2053
M161 ENGINE COOLING 1D2 -- 11
D AEW OO M Y_2000
THERMOSTAT
1 Bolt (M6 X 25, 3 pieces)
9--11 NSm (80-- 97 lb-in) .....................
2 Thermostat Cover
3 De-- aeration Hose4 Coolant Outlet Hose
5 Thermostat
6O--ring
Removal & Installation Procedure
1. Drain the coolant from the radiator.
2. Loosen the hose mounting clip and remove the cool-
ant hose (3, 4).
3. Unscrew the three bolts (1) and remove the thermo-
stat cover assembly from thermostat housing.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
Do not separate the thermostat cover and thermo-
stat.
4. Replace the O -- ring if necessary.
5. Check the leakage in the cooling system.
Page 407 of 2053
1D2 -- 12 M161 ENGINE COOLING
D AEW OO M Y_2000
THERMOSTAT HOUSING ASSEMBLY
Preceding Work: Removal of viscous clutch
1a Bolt (M6 X 95, 2 pieces)
9--11 NSm (80-- 97 lb-in) .....................
1b Bolt (M8 X 75, 2 pieces)
22.5-- 27.5 NSm (16.6-- 20.3 lb-ft) .............
1c Bolt (M8 X 35, 1 piece)
22.5-- 27.5 NSm (16.6-- 20.3 lb-ft) .............
2 Thermostat Housing Assembly3O--ring
4 De-- aeration Hose
5 Coolant Outlet Hose
6 Coolant Bypass Hose
7 Tensioning Device Shock Absorber
8 Engine Hanger Brocket
Page 408 of 2053
M161 ENGINE COOLING 1D2 -- 13
D AEW OO M Y_2000
Removal & Installation Procedure
1. Drain the coolant.
2. Remove the de-- aeration hose (4), coolant outlet
hose (5) and coolant bypass hose (6).
3. Disconnect the coolant temperature sensor connec-
tor.
4. Unscrew the bolt (1c) and pry off the tensioning de-
vice shock absorber (7).
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
5. Unscrow the bolts (1a, 1b) and remove the engine
hanger bracket and thermostat housing.
Installation Notice
Tightening
(1a)9--11NSm
(80 -- 97 lb-in)
Tightening
Torque(1b)22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
6. Replace the O -- ring with new one.
7. Installation should follow the removal procedure in
the reverse order.
8. Check for leaks in cooling system.
Page 410 of 2053
M161 ENGINE COOLING 1D2 -- 15
D AEW OO M Y_2000
REMOVAL AND INSTALLATION OF RADIATOR
Preceding Work: Removal of cooling fan shroud
1 Inlet Hose
2 Hose (to Engine)
3 Hose (to 3-- way Connector)
4 Make-- up Hose (to Coolant Reservoir)
5 3-- way Connector
6 Automatic Transmission Oil Cooling Hose
(A/T Equippend Vehicle)7 Bolt (M6 X 20, 4 pieces)
3--7 NSm (27-- 62 lb-in) .....................
8 Insulator
9 Radiator Bracket
10 Radiator
Page 411 of 2053
1D2 -- 16 M161 ENGINE COOLING
D AEW OO M Y_2000
Removal & Installation Procedure
1. Drain coolant from the radiator.
2. Remove the coolant thermo connector from the ra-
diator.
3. Remove the each coolant hoses.
4. Remove the automatic transmission fluid cooler
pipes from radiator.
Installation Notice
Tightening Torque
20 NSm (15 lb-ft)
5. Remove all the bolts (7) from the radiator bracket (9)
and remove the bracket (9) and insulator (8).
Installation Notice
Tightening Torque
3--7NSm (27 -- 62 lb-in)
6. Remove the radiator (10).
7. Check the radiator pin for crack, damage, leakage
and bending and replace it if necessary.
8. Installation is reverse order of removal.
9. Check for leakage in the cooling system.
Page 423 of 2053

D AEW OO M Y_2000
SECTION 1F2
ENGINE CONTROLS
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless other -
wise noted.
TABLE OF CONTENTS
Engine and ECM Problem Check Report 1F2 -- 2....
Specifications 1F2 -- 3............................
Engine Data Display Table 1F2 -- 3.................
Fastener Tightening Specifications 1F2 -- 4..........
Fuel System Specification 1F2 -- 5.................
Temperature vs Resistance 1F2 -- 5................
Special Tools and Equipment 1F2 -- 6..............
Special Tools Table 1F2 -- 6.......................
Schematic and Routing Diagrams 1F2 -- 7..........
ECM Wiring Diagram
(2.3L DOHC -- MSE 3.53S) 1F2 -- 7..............
Diagnosis 1F2 -- 14................................
Failure Code Diagnosis 1F2 -- 14.....................
Clearing Failure Codes 1F2 -- 14...................
Failure Codes Table 1F2 -- 14.....................
Ignition System 1F2 -- 18...........................
Ignition Coil 1F2 -- 20.............................
Crankshaft Position (CKP) Sensor 1F2 -- 22.........
Camshaft Position (CMP) Sensor 1F2 -- 26..........
Camshaft Actuator 1F2 -- 30......................
Knock Sensor (KS) 1F2 -- 32......................
Spark Plug 1F2 -- 34.............................
System Voltage 1F2 -- 38.........................
Ignition Switch 1F2 -- 39..........................
Fuel System 1F2 -- 40..............................
Fuel Pump 1F2 -- 42.............................
Fuel Injector 1F2 -- 46............................
Purge Control Valve 1F2 -- 50.....................
Fuel Rail 1F2 -- 52...............................
Fuel Pressure Regulator 1F2 -- 54.................
Induction System 1F2 -- 56..........................
Throttle Valve Actuator 1F2 -- 56...................
Hot Film Air Mass (HFM) Sensor 1F2 -- 60..........
Engine Coolant Temperature (ECT) Sensor 1F2 -- 64.
Accelerator Pedal Module 1F2 -- 68................Cooling Fan 1F2 -- 72............................
A/C Compressor Relay 1F2 -- 73...................
Cruise Control Switch 1F2 -- 74....................
Traction Control System (TCS) 1F2 -- 75............
Stop Lamp Switch 1F2 -- 76.......................
Engine RPM 1F2 -- 77............................
Exhaust System 1F2 -- 78...........................
Catalytic Converter 1F2 -- 78......................
Oxygen Sensor 1F2 -- 80.........................
Engine Control Module 1F2 -- 86.....................
Serial Data Communication 1F2--88...............
Internal Failure 1F2 -- 90..........................
Electronic Throttle Controller Safety
Malfunction 1F2 -- 92...........................
Immobilizer 1F2 -- 94.............................
Maintenance and Repair 1F2 -- 95..................
On -- Vehicle Service 1F2 -- 95........................
Discharging the Pressure in Fuel System 1F2 -- 95...
Fuel Pump 1F2 -- 95.............................
Fuel Filter 1F2 -- 96..............................
Fuel Tank 1F2 -- 97..............................
Fuel Pressure Regulator 1F2 -- 98.................
Fuel Rail and Injector 1F2 -- 99....................
Engine Coolant Temperature Sensor 1F2 -- 100......
Throttle Body (Integrated with the
Actuator) 1F2 -- 101............................
Hot Film Air Mass (HFM) Sensor 1F2 -- 102.........
Knock Sensor 1F2 -- 102..........................
Pedal Position Sensor 1F2 -- 103...................
Oxygen Sensor 1F2 -- 103........................
Purge Control Valve 1F2 -- 104....................
Canister 1F2 -- 104...............................
Camshaft Position Sensor 1F2 -- 104...............
Crankshaft Position Sensor 1F2 -- 105..............
Engine Control Module 1F2 -- 105..................
Page 425 of 2053

M161 ENGINE CONTROLS 1F2 -- 3
D AEW OO M Y_2000
SPECIFICATIONS
ENGINE DATA DISPLAY TABLE
ParameterUnitVa l u e
Engine Coolant Temp.°Cgreater than 95_Cafterwarmup
Intake Air Temp.°C-- 40 ~ 130_C (varies with ambient
temp. or engine mode)
Engine RPMrpm700±50 (P/N), 600±50 (D)
Regular RPMrpm700±50 (P/N), 600±50 (D)
Engine Load%18 ~ 25 %
Mass Air Flow MeterKg/h16 ~ 25 Kg/h
Throttle Position Angle_TA0_TA(upto100_TA at the wide
open throttle)
Spark Advance_CA8_CA (6 ~ 9_CA)
Indicated Engine TorqueNmVaries with engine condition
Injection Timems3~5ms
Battery VoltageV13.5 ~ 14.1 v (engine running)
Front Axle SpeedKm/h0~265Km/h
Rear Axle SpeedKm/h0~265Km/h
Accel. Pedal Position 1V0.4~4.8V
Accel. Pedal Position 2V0.2~2.4V
Throttle Position 1V0.3~4.6V
Throttle Position 2V0.3~4.6V
Fuel Integrator0.8 ~ 1.2
Oxygen Sensormv100 ~ 900 mv
A/C S/W Condition1=ON/0=OFF--
Full Load State1=ON/0=OFF--
Shift Gear State (A/T)1=ON/0=OFF--
A/CControlState1=ON/0=OFF--
Clutch Switch (M/T)1=ON/0=OFF--
Cam Actuator State1=ON/0=OFF--
Knocking Control1=ON/0=OFF--
Protect Mission1=ON/0=OFF--
Purge Control Valve1=ON/0=OFF--
Lambda Function1=ON/0=OFF--
Catalyst Heating1=ON/0=OFF--
Overrun Fuel Cut1=ON/0=OFF--
Full Fuel Cut1=ON/0=OFF--
Brake Switch1=ON/0=OFF--
Cruise Control Status1=ON/0=OFF--
* Condition : Warmed up, idle, P/N or neutral