Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-207
6A/C evaporator outlet air temp. sensor check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection to “E23-57” and “E23-54” wire terminals of ECM connector.
3) If OK, measure resistance between “E23-57” and “E23- 54” wire terminals of ECM connector.
Evaporator temp. sensor resistance
At 0 °C: 6.3 – 6.9 k Ω
At 25 °C: 1.8 – 2.2 k Ω
Is resistance within specification? Go to Step 7. Faulty A/C evaporator
outlet air temp. sensor
or its circuit.
7 DTC check of A/C refrigerant pressure sensor circuit
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check ECM for DTC of A/C refrigerant pressure sensor circuit.
Is there DTC P0532 or DTC P0533? Go to applicable DTC
diag. flow.
Go to Step 8.
8 A/C refrigerant pressure sensor voltage check
1) Check A/C refrigerant pressure sensor voltage referring
to “Inspection of ECM and Its Circuits”.
Is voltage within specified value? Go to Step 9. Check amount of
refrigerant. If OK,
replace A/C refrigerant
pressure sensor.
9 Radiator cooling fan check
1) Check radiator cooling fan referring to “Radiator Cooling
Fan Motor On-Vehicle Inspection in Section 1F”.
Is check result satisfactory? Radiator cooling fan
drive circuit malfunction.
If circuit is OK, go to
St ep 6 .
Replace radiator cooling
fan motor.
10 A/C compressor control system check
Is A/C compressor started when A/C and blower speed
selector switch are turned ON with engine running? A/C system is in good
condition.
Go to Step 11.
Step Action Yes No
7
6
5
4
3
2
1
10
20 30
40 50
0
10
2030
60 70 80
ResistanceTemperatureI3RB0A110053-01
Downloaded from www.Manualslib.com manuals search engine 1A-212 Engine General Information and Diagnosis:
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from engine cooling fan to help prevent personal injury. This fan
is electric and can come on whether or not the engi ne is running. The fan can start automatically in
response to the ECT sensor with the ig nition switch at the “ON” position.
NOTE
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special
tool to ECM and/or the ECM connectors referri ng to “Inspection of ECM and Its Circuits”.
StepAction YesNo
1 Is there DTC(s) of ECT sensor circuit (DTC P0116 / P0117 /
P0118) and/or radiator cooling fan circuit (DTC P0480)? Go to corresponding
DTC flow.Go to Step 2.
2 Low speed radiator cooling fan control circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Warm up engine until coolant temp. is 97.5 °C, 207.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at low speed when engine
coolant temp. reached above temp.? Radiator cooling fan low
speed control system is
in good condition.
Perform from Step 2 to
Step 8 in DTC P0480
diag. flow. If OK, Go to
Ste p 3.
3 Radiator cooling fan control check
1) Disconnect radiator cooling fan control relays No. 2, and
No. 3 from individual circuit fuse box No.1 with ignition
switch turned OFF.
2) Run engine when ECT is over 97.5 °C, 207.5 °F.
3) Measure voltage between vehicle body ground and “BLU/RED” wire terminal of disconnected radiator
cooling fan motor connector.
Is voltage 10 – 14 V? Go to Step 4.
“BLU/RED” wire is open
or high resistance
circuit.
4 Check radiator cooling fan wire circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “BLK” wire terminal of
disconnected radiator coolin g fan motor connector and
vehicle body ground.
Is resistance below 1
Ω? Go to Step 5. “BLK” wire is open or
high resistance circuit.
5 Radiator cooling fan check
1) Check radiator cooling fan referring to “Radiator Cooling
Fan Motor On-Vehicle Inspection in Section 1F”.
Is it in good condition? Substitute a known-
good ECM and recheck.
Faulty radiator cooling
fan.
Downloaded from www.Manualslib.com manuals search engine 1A-214 Engine General Information and Diagnosis:
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from engine cooling fan to help prevent personal injury. This fan
is electric and can come on whether or not the engi ne is running. The fan can start automatically in
response to the ECT sensor with the ig nition switch at the “ON” position.
NOTE
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special
tool to ECM and/or the ECM connectors referri ng to “Inspection of ECM and Its Circuits”.
StepAction YesNo
1 Is there DTC(s) of ECT sensor circuit (DTC P0116 / P0117 /
P0118) and/or radiator cooling fan circuit (DTC P0480)? Go to corresponding
DTC flow.Go to Step 2.
2 Low speed radiator cooling fan control circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Warm up engine until coolant temp. is 97.5 °C, 207.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at low speed when engine
coolant temp. reached above temp.? Go to Step 3.
Perform from Step 2 to
Step 5 in “Radiator
Cooling Fan Low Speed
Control System Check”.
3 High speed radiator cooling fan control circuit check
1) Start engine and select “DATA LIST” mode on scan tool.
2) Warm up engine until coolant temp. is 102.5 °C, 216.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at high speed when engine
coolant temp. reached above temp? Radiator cooling fan
control system is in
good condition.
Perform from Step 9 to
Step 14 in DTC P0480
diag. flow.
If OK, Go to Step 4.
4 Radiator cooling fan control No. 2 and No. 3 check
1) Run engine when ECT is over 102.5 °C, 216.5 °F.
2) Measure voltage between vehicle body ground and “E23-48” terminal of ECM connector.
Is voltage lower than 1.5 V? Go to Step 5.
Faulty ECM.
5 Radiator cooling fan No. 2 wire circuit check
1) Remove radiator cooling fan control relay No.2 with
ignition switch turned OFF.
2) Measure voltage between “GRY” wire terminal of disconnected radiator cooling fan control relay No. 2
connector and vehicle body ground.
Is voltage 10 – 14 V? Go to Step 6.
“GRY” wire is open or
high resistance circuit.
6 Radiator cooling fan No. 2 wire circuit check
1) Disconnect connector from radiator cooling fan motor
with ignition swit ch turned OFF.
2) Measure resistance between “BLU/BLK” wire terminal of disconnected radiator cooling fan control relay No. 2
connector and vehicle body ground.
Is resistance infinity? Go to Step 7.
“BLU/BLK” wire is
shorted to ground
circuit.
Downloaded from www.Manualslib.com manuals search engine 1C-10 Engine Electrical Devices:
Knock Sensor Removal and InstallationS7RS0B1306016
Removal1) Disconnect negative (–) cable at battery.
2) Hoist vehicle.
3) Remove right side drive shaft referring to “Front Drive Shaft Assembly Removal and Installation in
Section 3A”.
4) Disconnect knock sensor connector (1).
5) Remove knock sensor (2) from cylinder block.
Installation
Reverse removal procedure for installation.
Tightening torque
Knock sensor (a): 22 N· m (2.2 kgf-m, 16.0 lb-ft)
Main Relay, Fuel Pump Relay and Starting Motor
Control Relay Inspection
S7RS0B1306017
1) Disconnect negative (–) cable at battery.
2) Remove main relay (1), fuel pump relay (3) and/or
starting motor control relay (2) from individual circuit
fuse box No.1.
3) Check that there is no continuity between terminal “C” and “D”. If there is continuity, replace relay.
4) Connect battery positive (+ ) terminal to terminal “B”
of relay. Connect battery negative (–) terminal to
terminal “A” of relay. Ch eck for continuity between
terminal “C” and “D”. If t here is no continuity when
relay is connected to the battery, replace relay.
1 2, (a)
I3RB0A130007-01
"D"
"B" "A"
"C"
2
1
3
I4RS0A130014-01
Downloaded from www.Manualslib.com manuals search engine 1D-17 Engine Mechanical:
Engine Assembly Removal and InstallationS7RS0B1406011
NOTE
After replacing electric throttle body
assembly, perform calibration of throttle
valve referring to “Electric Throttle Body
System Calibration in Section 1C”.
Removal1) Relieve fuel pressure according to “Fuel Pressure Relief Procedure in Section 1G”.
2) Disconnect negative and pos itive cable at battery.
3) Remove battery and tray.
4) Remove engine hood after disconnecting windshield washer hose.
5) Remove right and left side engine under covers.
6) Remove A/C compressor belt by referring to “Compressor Drive Belt Remo val and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
7) Drain engine oil, transaxle oil and coolant.
8) Remove cowl top plate referring to “Cowl Top Components in Section 9K”.
9) Remove air cleaner assembly referring to “Air Cleaner Components”.
10) With hose connected, detach A/C compressor from its bracket (A/C model) referring to “Compressor
Assembly Removal and Installation in Section 7B” or
“Compressor Assembly Removal and Installation in
Section 7B”.
CAUTION!
Suspend removed A/C compressor at a place
where no damage will be caused during
removal and installation of engine assembly.
11) Remove intake manifold rear stiffener (1) from intake manifold and cylinder block. 12) Disconnect the following electric wires:
• MAP sensor (1)
• ECT sensor (2)
•EGR valve (3)
• CMP sensor (4)
• Electric throttle body assembly (5)
• Ignition coil assembly (6)
• Injectors (7)
• Heated oxygen sensor No. 2 (8) and No. 1 (9)
• Oil control valve (10)
• Engine oil pressure switch (11)
• CKP sensor (12)
• Knock sensor (13)
• Back up light switch (14)
• Generator (15)
• Starting motor (16)
• Ground terminal (17) from intake manifold
• Battery ground terminal (18) from exhaust manifold
• Battery ground cable (19) from transaxle
• Magnet clutch switch of A/C compressor (A/C model)
• Each wire harness clamps
• Output shaft speed sensor (VSS) (34) (A/T model)
• Solenoid valve (33) (A/T model)
• Transmission range sensor (32) (A/T model)
• Input shaft speed sensor (31) (A/T model)
13) Remove fuse box from its bracket.
14) Disconnect the following cables: • Gear select control cable (23) (M/T model)
• Gear shift control cable (24) (M/T model)
• A/T select cable (A/T model)
15) Disconnect the following hoses: • Brake booster hose (26) from intake manifold
• Radiator inlet and outlet hoses (20) from each pipe
• Heater inlet and outlet hoses (21) from each pipe
• Fuel feed hoses (22) from fuel feed pipe
• EVAP canister purge valve hose (30) from purge pipe
• A/T fluid cooler hoses (A/T model)
16) With hose connected, detach clutch operating cylinder (25). (M/T model)
CAUTION!
Suspend removed clutch operating cylinder
at a place where no damage will be caused
during removal and installation of engine
assembly.
1
I6RS0B141014-01
Downloaded from www.Manualslib.com manuals search engine 1D-19 Engine Mechanical:
24) Before removing engine with transaxle from engine compartment, recheck to make sure all hoses,
electric wires and cables are disconnected from
engine and transaxle.
25) Lower engine with transaxle from engine compartment.
CAUTION!
Before lowering engine, to avoid damage to
A/C compressor and clutch operating
cylinder, make clearance by rising them. Be
sure not to damage suspended A/C
compressor and clutch operating cylinder.
26) Disconnect transaxle from engine, referring to “Manual Transaxle Unit Dismounting and
Remounting in Section 5B” or “Automatic Transaxle
Unit Dismounting and Re mounting in Section 5A”.
27) For M/T model, remove clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
Installation 1) For M/T model, install clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
2) Connect transaxle to engine referring to “Manual Transaxle Unit Dismounting and Remounting in
Section 5B” or “Automatic Transaxle Unit
Dismounting and Remounting in Section 5A”.
3) Lift engine and transaxle into engine compartment with jack.
4) Install engine left mounting bracket nuts (1) and engine right mounting nuts (2).Tighten these nuts to
specified torque.
Tightening torque
Engine left mounting bracket nut (a): 55 N·m (5.5
kgf-m, 40.0 lb-ft)
Engine right mounting nut (b): 65 N·m (6.5 kgf-
m, 47.0 lb-ft) 5) Support engine assemble by using chain hoist.
6) Install engine rear mounting to engine rear
mountingNo.1 bracket.
Tightening torque
Engine rear mounting bush bolt: 55 N·m (5.5
kgf-m, 40.0 lb-ft)
7) Install suspension frame referring to “Front Suspension Frame, Stabiliz er Bar and/or Bushings
Removal and Installati on in Section 2B”.
8) Remove chain hoist.
9) Install exhaust No.1, No.2 and center pipes referring to “Exhaust Pipe and Muffler Removal and
Installation in Section 1K”.
10) Connect drive shaft joints referring to “Front Drive Shaft Assembly Removal and Installation in Section
3A”.
11) Reverse disconnected hoses, cables and electric wires for connection noting the followings.
• Tighten nuts to specified torque.
Tightening torque
Starting motor terminal nut: 11 N·m (1.1 kgf-m,
8.0 lb-ft)
Generator terminal nut: 6 N·m (0.6 kgf-m, 4.5 lb-
ft)
Intake manifold ground terminal bolt: 11 N·m (
1.1 kgf-m, 18.0 lb-ft)
12) Install intake manifold rear stiffener to intake
manifold and cylinder block.
13) Install air cleaner assembly referring to “Air Cleaner Components”.
14) Install cowl top referring to “Cowl Top Components in
Section 9K”.
I4RS0A140009-01
1, (a)
2, (b)
I4RS0A140010-01
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-64
Honing or Reboring Cylinders1) When any cylinder needs reboring, all other cylinders must also be rebored at the same time.
2) Select oversized piston according to amount of cylinder wear.
Oversize piston specification
Oversize 0.50: 78.453 – 78.468 mm (3.0887 –
3.0893 in.)
3) Using micrometer, measure piston diameter. Measurement position for piston diameter
“a”: 7.0 mm (0.28 in.) 4) Rebore and hone cylinder to the following
dimension.
NOTE
Before reboring, install all main bearing caps
in place and tighten to specification to avoid
distortion of bearing bores.
Cylinder bore diameter to be rebored
Oversize 0.50: 78.500 – 78.514 mm (3.0906 –
3.0911 in.)
5) Measure piston clearance after honing. Piston clearance
0.032 – 0.061 mm (0.0013 – 0.0024 in.)
Specifications
Tightening Torque SpecificationsS7RS0B1407001
I2RH01140157-01
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Camshaft housing bolt 11 1.1 8.0 )
Cylinder head cover bolt Tighten 3 N ⋅m (0.3 kgf-m, 2.5 lb-ft), 5 N ⋅m
(0.5 kgf-m, 4.0 lb-ft) and 8 N ⋅m (0.8 kgf-m,
6.0 lb-ft) by the specified procedure )
Intake manifold bolt 23 2.3 17.0 )
Intake manifold nut 23 2.3 17.0 )
Intake manifold ground terminal bolt 11 1.1 8.0 )
Engine left mounting bracket nut 55 5.5 40.0 )
Engine right mounting nut 65 6.5 47.0 )
Engine rear mounting bush bolt 55 5.5 40.0 )
Starting motor terminal nut 11 1.1 8.0 )
Generator terminal nut 6 0.6 4.5 )
Intake manifold ground terminal bolt 11 1.1 18.0 )
Timing chain cover bolt 25 2.5 18.0 )
Timing chain cover nut 25 2.5 18.0 )
Cap bolt 25 2.5 18.0 )
Oil gallery pipe No.2 and No.3 bolt 11 1.1 8.0 )
Crankshaft pulley bolt 150 15.0 108.5 )
Oil control valve mounting nut 11 1.1 8.0 )
Oil gallery pipe No.1 bolt 30 3.0 21.5 )
Timing chain No.1 guide bolt 9 0.9 6.5 )
Timing chain tensioner bolt 25 2.5 18.0 )
Timing chain tensioner adjuster bolt 11 1.1 8.0 )
Camshaft housing bolt 5 N ⋅m (0.5 kgf-m, 4.0 lb-ft) and 11 N ⋅m (1.1
kgf-m, 8.0 lb-ft) by the specified procedure )
/ )
Intake cam timing sprocket bolt 60 6.0 43.5 )
Venturi plug 3.5 0.35 3.0 )
Cylinder head bolt for M8 25 2.5 18.0 )
Cylinder head bolt for M10 20 N ⋅m (2.0 kgf-m, 14.5 lb-ft), 40 N ⋅m (4.0
kgf-m, 29.0 lb-ft) and then retighten by
turning through to 60 ° twice )
Downloaded from www.Manualslib.com manuals search engine 1I-1 Starting System:
Engine
Starting System
Schematic and Routing Diagram
Cranking System Circuit DiagramS7RS0B1902001
Diagnostic Information and Procedures
Cranking System Symptom DiagnosisS7RS0B1904001
Possible symptoms due to starting system trouble would be as follows:
• Starting motor does not run (or runs slowly)
• Starting motor runs but fails to crank engine
• Abnormal noise is heard
Proper diagnosis must be made to determine exactly where the cause of each trouble lies in battery, wiring harness,
(including starting motor switch), starting motor or engine.
Do not remove motor just because starting motor does not run. Check the following items and narrow down scope of
possible causes.
1) Condition of trouble
2) Tightness of battery terminals (including ground cable connection on engine side) and starting motor terminals
3) Discharge of battery
4) Mounting of starting motor
I4RS0A190001-01
1. Pinion drive lever 6. Magnetic switch contacts 11. Ignition & Starter switch
2. Pinion & Over-running clutch 7. Pull-in coil 12. Battery
3. Magnetic switch 8. Starting motor 13. To ECM
4. Hold-in coil 9. Starting motor control relay
5. Plunger 10. A/T: Transmission range switch (shift lever switch)