TROUBLESHOOTING
ENGINE COOLING14-16
INSPECTION PROCEDURE 2: Cooling Fan (L.H.) and Cooling Fan (R.H.) <4G1 (Vehicles with A/C)> or
A/C Condenser Fan <4G6> do not Change Speed or Stop
COOLING FAN (L.H.) AND COOLING FAN
(R.H.) OR A/C CONDENSER FAN DRIVE
CIRCUIT
Refer to P.14-6.
CIRCUIT OPERATION
Refer to P.14-6.
TECHNICAL DESCRIPTION
•If the communication line wiring harness between
the cooling fan motor drive control unit and the
engine-ECU
is open, the cooling fan motor (L.H.) and
the cooling fan motor (R.H.) <4G1 (Vehicles with
A/C)>, or the A/C condenser fan motor <4G6>
rotate to prevent the engine from overheating.
•If the system voltage is continuously supplied to
the cooling fan motor drive control unit by a fan
motor relay malfunction and a short circuit on the
cooling fan motor drive control unit power supply
wiring harness, the cooling fan motor (L.H.) and
the cooling fan motor (R.H.) <4G1 (Vehicles with
A/C)>, or the A/C condenser fan motor <4G6>
rotate.
•The cause could also be a malfunction of the
cooling fan motor (L.H.).
•The cause could also be a malfunction of input
signal from the A/C switch, the water temperature
sensor unit and the vehicle speed sensor
or the output shaft speed sensor to the
engine-ECU
•The cause could also be a malfunction of the
cooling fan motor drive control unit or the
engine-ECU
TROUBLESHOOTING HINTS
•Malfunction of fan control relay
•Malfunction of cooling fan motor (L.H.)
•Malfunction of cooling fan motor drive control unit
•Malfunction of engine-ECU
engine-A/T-ECU
•Damaged wiring harness or connector
DIAGNOSIS
STEP 1. Check the fan control relay.
Refer to P.14-23.
Q: Is the fan control relay in good condition?
YES : Go to Step 2 .
NO : Replace the fan control relay. Then go to
Step 8
.
STEP 2. Check the fan control relay connector
A-09X.
AC303510AB
Fan control relay
Relay boxConnector: A-09X
A-09X
Q:Is t h e con n ec tor in goo d c ond it io n?
YES : Go to S t ep 3 .
NO : Repa ir th e con nect o r or rep l ace the re lay
box. Then
go to S t ep 8
.
STEP 3 . Check the harness wire be twee n fan
control relay
connec tor A-0 9 X terminal 2 and
cooling f
an motor drive control uni t connec tor
A-1
8 terminal 3.
AC303510AB
Fan control relay
Relay boxConnector: A-09X
A-09X
ON-VEHICLE SERVICE
ENGINE COOLING14-23
3. Connect the cooling fan motor drive control unit connector, and disconnect the cooling fan motor
(L.H.) connector.
4. Ensure that the A/C switch is off, and start the engine and run it at idle.
AC303496AB
Cooling fan motor
drive control unit
5.Measure the volt ag e betwee n the cooling f an
motor d r ive cont rol un it side conne ctor t e rminal 1
an d 2.
St andard va lue: 1V or le ss
WARNING
Stay clear of the fan when the fan starts run-
ning.
6. Turn the A/C switch to the "ON" position.
7. Measure the voltage between the cooling fan
motor drive control unit side connector terminal 1
and 2 while the fan is running. The voltage should
repeat the values below.
Standard value:
1. 1 V or less
2. 8.2 ± 0.7 V
3. System voltage ± 2.6 V
8. If the voltage does not repeatedly change as indicated, replace the cooling fan motor drive
control unit. (Refer to
P.14-33) <4G1> (Refer to
P.14-35) <4G6>.
FAN CONTROL RELAY CONTINUITY CHECK
M1141006200280
AC211776
13
4 2
3 4
1
2
AC301712
Fan control relay
AB
Battery
voltageTerminal No.to
be connected
to testerContinuity test
results
Not applied4 − 2Open circuit
Connect
terminal No.1
and battery (
−)
terminal.
Connect
terminal No.3
and battery (+)
terminal.
4 − 2Less than 2
ohms
16-1
GROUP 16
ENGINE
ELECTRICAL
CONTENTS
CHARGING SYSTEM . . . . . . . .16-2
GENERAL INFORMATION . . . . . .16-2
SERVICE SPECIFICATIONS. . . . .16-3
SPECIAL TOOL . . . . . . . . . . . . . . .16-3
ON-VEHICLE SERVICE. . . . . . . . .16-3
ALTERNATOR OUTPUT LINE VOLTAGE
DROP TEST . . . . . . . . . . . . . . . . . . . . . 16-3
OUTPUT CURRENT TEST . . . . . . . . . . 16-5
REGULATED VOLTAGE TEST . . . . . . . 16-7
WAVEFORM CHECK USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . 16-9
ALTERNATOR ASSEMB LY . . . . .16-12
REMOVAL AND INSTALLATION
<4G1> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-12
REMOVAL AND INSTALLATION
<4G6> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-13
DISASSEMBLY AND REASSEMBLY . . 16-15
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-17
STARTING SYSTEM . . . . . . . . .16-19
GENERAL INFORMATION . . . . . .16-19
SERVICE SPECIFICATIONS. . . . .16-20
STARTER MOTOR ASSEMBLY . .16-21
REMOVAL AND INSTALLATION
<4G1> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-21
REMOVAL AND INSTALLATION
<4G6> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-22
STARTER MOTOR ASSEMBLY
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-23
DISASSEMBLY AND REASSEMBLY . . 16-26
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-27
IGNITION SYSTEM . . . . . . . . . 16-30
GENERAL INFORMATION . . . . . .16-30
SERVICE SPECIFICATIONS . . . . .16-31
SPECIAL TOOL . . . . . . . . . . . . . . .16-31
ON-VEHICLE SERVICE . . . . . . . . .16-32
IGNITION COIL (WITH BUILT-IN
POWER TRANSISTOR) CHECK . . . . . . 16-32
RESISTIVE CORD CHECK . . . . . . . . . . 16-32
SPARK PLUG CHECK AND CLEANING
<4G1>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-32
SPARK PLUG CHECK AND CLEANING
<4G6>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-33
CAMSHAFT POSITION SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 16-33
CRANK ANGLE SENSOR CHECK . . . . 16-33
DETONATION SENSOR CHECK . . . . . 16-33
IGNITION SECONDARY VOLTAGE
WAVEFORM CHECK USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . 16-33
IGNITION COIL RELAY CHECK . . . . . . 16-37
IGNITION COIL . . . . . . . . . . . . . . . .16-38
REMOVAL AND INSTALLATION
<4G1>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-38
REMOVAL AND INSTALLATION
<4G6>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-39
CAMSHAFT POSITION SENSOR .16-40
REMOVAL AND INSTALLATION . . . . . . 16-40
CRANKSHAFT POSITION SENSOR16-41
REMOVAL AND INSTALLATION
<4G1>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-41
REMOVAL AND INSTALLATION
<4G6>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-42
DETONATION SENSOR . . . . . . . .16-43
REMOVAL AND INSTALLATION . . . . . . 16-43
IGNITION SYSTEM
ENGINE ELECTRICAL16-37
IGNITION COIL RELAY CHECK
M1163006500018
AC301727
2 1
3
4
AC304311AB
Battery
Ignition coil relay
Battery
voltageTerminal No.to
be connected
to testerContinuity test
results
Not applied1 − 4Open circuit
Connect
terminal No.2
and battery (+)
terminal.
Connect
terminal No.3
and battery (
−)
terminal.
1 − 4Less than 2
ohms
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-10
SYSTEM DIAGRAM
AK204367AC
Throttle body
Canister
From
fuel
tank
OFF
ON Purge
control
solenoid
valve
Control
relay
Battery Engine-ECU <4G1-M/T, 4G6>,
Engine-A/T-ECU <4G1-A/T>
Air flow sensor <4G6>Engine coolant
temperature sensor
Intake air
temperature sensor
Barometric pressure
sensor <4G6>
Manifold absolute pressure
(MAP) sensor <4G1>
COMPONENT LOCA
TION (EV A PORA TIVE
EMISSION CONTROL SYSTEM)
M1173 0075 0021 6
AK300769
<4G1>
AB
Purge control
solenoid valve
AK300770
<4G6>
AB
Purge control
solenoid valve
PURGE CONTROL SYSTEM CHECK
M1173 0014 0029 9
AK300771
<4G1>
AB
Plug
Vacuum hose
AK300772
<4G6>
AB
Plug
Vacuum hose
1.Disco nnect the vacu um h o se (re d str i pe) fro m
th rottle body and conne ct it to a h and vacu um
pu m p .
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-13
SYSTEM DIAGRAM
AK300775
Manifold absolute
pressure (MAP) sensor
Engine-ECU
Engine-A/T-ECU
Engine coolant
temperature sensor
Crank angle sensor
EGR
control
solenoid
valve
EGR valve OFF
ON Control
relay
Battery
AB
<4G1>
AK302349AB
<4G6>EGR
control
Solenoid
valve
EGR valve OFF
ON
Control
relay
Battery Engine-ECU
Barometric pressure
sensor
Air flow sensor
Engine coolant
temperature sensor
Crank angle sensor
EMISSION CONTROL
ENGINE AND E M ISSION CON T ROL17-14
COMPONENT LOCATION (EGR SYSTEM)
M1173 0076 0022 4
AK300776
<4G1>
AB
EGR control
solenoid valve
AK300778
<4G6>
AB
EGR control
solenoid valve
AK300777
<4G1>
AB
EGR valve
AK300779AB
<4G6>
EGR valve
42-2
TROUBLESHOOTING . . . . . . . . . .42-26
ON-VEHICLE SERVICE. . . . . . . . .42-27
DOOR FIT ADJUSTMENT. . . . . . . . . . . 42-27
DOOR WINDOW GLASS
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 42-28
GLASS SLIDING MECHANISM CHECK
AND ADJUSTMENT . . . . . . . . . . . . . . . 42-28
POWER WINDOW OPERATING
CURRENT CHECK . . . . . . . . . . . . . . . . 42-28
POWER WINDOW RELAY CHECK . . . 42-29
CIRCUIT BREAKER (INCORPORATED
IN THE POWER WINDOW MOTOR)
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-29
POWER WINDOW CHECK . . . . . . . . . . 42-29
CENTRAL DOOR LOCKING SYSTEM
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-29
DOOR OUTSIDE HANDLE PLAY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . 42-29
DOOR INSIDE HANDLE PLAY
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 42-30
DOOR ASSEMBLY . . . . . . . . . . . .42-31
REMOVAL AND INSTALLATION . . . . . 42-31
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-32
DOOR GLASS AND REGULATOR42-32
REMOVAL AND INSTALLATION . . . . . 42-32
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-34
DOOR HANDLE AND LATCH . . . .42-36
REMOVAL AND INSTALLATION . . . . . 42-36
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-37
WINDOW GLASS RUNCHANNEL
AND DOOR OPENING
WEATHERSTRIP . . . . . . . . . . . . . .42-39
REMOVAL AND INSTALLATION . . . . . 42-39
TRUNK LID . . . . . . . . . . . . . . . .42-41
SPECIAL TOOL . . . . . . . . . . . . . . .42-41
ON-VEHICLE SERVICE. . . . . . . . .42-41
TRUNK LID ADJUSTMENT . . . . . . . . . . 42-41
ADJUSTMENT OF CLEARANCE
AROUND TRUNK LID . . . . . . . . . . . . . . 42-42
TRUNK LID STRIKER ADJUSTMENT . 42-42
TRUNK LID HEIGHT ADJUSTMENT . . 42-42
TRUNK LID . . . . . . . . . . . . . . . . . . .42-43
REMOVAL AND INSTALLATION . . . . . . 42-43
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-45
TAILGATE . . . . . . . . . . . . . . . . 42-46
SERVICE SPECIFICATIONS . . . . .42-46
SEALANTS . . . . . . . . . . . . . . . . . . .42-46
SPECIAL TOOL . . . . . . . . . . . . . . .42-46
TROUBLESHOOTING . . . . . . . . . .42-47
ON-VEHICLE SERVICE . . . . . . . . .42-47
TAILGATE FIT ADJUSTMENT. . . . . . . . 42-47
TAILGATE HANDLE PLAY CHECK . . . . 42-47
TAILGATE . . . . . . . . . . . . . . . . . . .42-48
REMOVAL AND INSTALLATION . . . . . . 42-48
TAILGATE HANDLE AND
LATCH . . . . . . . . . . . . . . . . . . . . . .42-50
REMOVAL AND INSTALLATION . . . . . . 42-50
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-51
KEYLESS ENTRY SYSTEM . . 42-51
SERVICE SPECIFICATIONS . . . . .42-51
SPECIAL TOOLS . . . . . . . . . . . . . .42-52
TROUBLESHOOTING . . . . . . . . . .42-53
ON-VEHICLE SERVICE . . . . . . . . .42-53
KEYLESS ENTRY SYSTEM CHECK. . . 42-53
KEYLESS ENTRY SYSTEM TIMER
LOCK FUNCTION INSPECTION . . . . . . 42-53
ENABLING/DISABLING THE
ANSWERBACK FUNCTION . . . . . . . . . 42-53
HOW TO REGISTER SECRET CODE . 42-55
TRANSMITTER. . . . . . . . . . . . . . . .42-58
DISASSEMBLY AND REASSEMBLY . . 42-58
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-59