GENERAL – How to Use Troubleshooting/Inspection Service Points00-11
CONNECTOR MEASUREMENT SERVICE POINTS
Turn the ignition switch to OFF when connecting disconnecting
the connectors, and turn the ignition switch to ON when
measuring if there are no instructions to be contrary.
IF INSPECTING WITH THE CONNECTOR CONNECTED
(WITH CIRCUIT IN A CONDITION OF CONTINUITY)
Waterproof Connectors
Be sure to use the special tool (harness connector). Never
insert a test bar from the harness side, because to do so
will reduce the waterproof performance and result in corrosion.
Ordinary (non-waterproof) Connectors
Check by inserting the test bar from the harness side. Note
that if the connector (control unit, etc.) is too small to permit
insertion of the test bar, it should not be forced; use a special
tool (the extra-thin probe in the harness set for checking
for this purpose.
IF INSPECTING WITH THE CONNECTOR DISCONNECTED
Use the special tool (inspection harness for connector pin
contact pressure in the harness set for inspection).
The inspection harness for connector pin contact pressure
should be used. the test bar should never be forcibly inserted,
as it may cause a defective contact.
Touch the pin directly with the test bar.
Caution
At this time, be careful not to short the connector pins
with the test bars. To do so may damage the circuits
inside the ECU.
Harness connector
Extra-thin probe
Test bar
Connector
Inspection harness
for connector pin
contact pressure
ENGINE – General Information11-2
GENERAL INFORMATION
DescriptionsSpecifications
TypeIn-line OHV, SOHC
Number of cylinders4
Combustion chamberPentroof + curved top piston type
Total displacement dm31,997
Cylinder bore mm85.0
Piston stroke mm88.0
Compression ratio8.8
Valve timingIntake valveOpens (BTDC)21°
Closes (ABDC)59°
Exhaust valveOpens (BBDC)58°
Closes (ATDC)18°
Lubrication systemPressure feed, full-flow filtration
Oil pump typeInvolute gear type
REAR AXLE – Hydraulic Unit
REMOVAL SERVICE POINTS
AHYDRAULIC UNIT REMOVAL
Should the hydraulic unit be discarded, drill a hole in the
accumulator at the illustrated position beforehand in order
to release the inside gas.
Caution
(1) The hydraulic unit has its accumulator filled with a
high pressure gas. Never throw it into a fire. Also,
never attempt to disassemble, press, weld or melt
it.
(2) When drilling a hole in the accumulator, be sure to
wear safety goggles since drill chips may blow out
together with the gas.
INSTALLATION SERVICE POINTS
AGROMMET INSTALLATION
On the vehicle mounted with a sunroof, mount the drain pipe
to the grommet as illustrated.
BSUCTION HOSE / RETURN HOSE INSTALLATION
Fit the suction hose and return hose to the nipple of hydraulic
unit as illustrated.
CHYDRAULIC UNIT AND BRACKET ASSEMBLY
INSTALLATION
Hook the hydraulic unit bracket hook to the rear floor side
member and install the hydraulic unit and bracket assembly
mounting bolt.Grommet
Drain pipe
25 ± 5 mm
Nipple
Suction hose and
return hose15 mm
Hook
Rear floor side member
42-1
BODY
CONTENTS
GENERAL 2. . . . . . . . . . . . . . . . . . . . . . . . . .
OUTLINE OF CHANGE 2. . . . . . . . . . . . . . . . . .
KEYLESS ENTRY SYSTEM 2. . . . . . . . . .
SPECIAL TOOL 2. . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 2. . . . . . . . . . . . . . . . . . . .
KEYLESS ENTRY SYSTEM 7. . . . . . . . . . . . . .
TRANSMITTER 7. . . . . . . . . . . . . . . . . . . . . . . . . .
SUNROOF 9. . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 9. . . . . . . . . . . . . .
SEALANT 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 9. . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 13. . . . . . . . . . . . . . . .
Water Test 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunroof Fit Adjustment 13. . . . . . . . . . . . . . . . . . .
SUNROOF 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
BODY – SunroofBODY – Sunroof42-9
SUNROOF
SERVICE SPECIFICATIONS
ItemsStandard value
Roof lid glass operating current A (at 20C)7 or less
Sunroof motor clutch slippage torque Nm4.7 – 6.2
SEALANT
ItemSpecified sealant
Rail cover assembly3M ATD Part No.8531 or 3M Part No.8646 or equivalent
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection procedureReference page
The sunroof can not be operated when the ignition switch is in
ON position.142-9
The motor does not reverse its direction when a load of 140 N
or more is applied while the sunroof is closing.242-11
The timer does not operate for 30 seconds after the ignition
switch is turned to OFF.342-11
Opening or closing of the sunroof is possible for 30 seconds
after turning the ignition switch to OFF, but the timer function
is not extended when the driver’s side door is opened within this
period.442-11
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure 1
The sunroof can not be operated when the ignition switch
is in ON position.
Probable cause
One of the following items may be defective.
Sunroof switch
Sunroof motor
Sunroof-ECU power supply circuit
Earth circuitMalfunction of sunroof switch
Malfunction of sunroof motor
Malfunction of sunroof-ECU
Malfunction of wiring harness or connector
BODY – Sunroof42-10
OK
Check trouble symptoms.
NG
Check the harness wire between igni-
tion switch (IG1) and sunroof-ECU, and
repair if necessary.
(2) NG
Check the following connectors:
B-44, B-76, B-73, D-10NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wire between fusible
link No.1 and sunroof-ECU, and repair
if necessary.
(3) NG
Check the following connectors:
B-44, D-10NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wire between sunroof-ECU and
the earth, and repair if necessary.
OK
Check sunroof switch continuity (Refer to P.42-17.)NG
Repair
OK
Measure at the sunroof-ECU connector D-10.
Disconnect the connector and measure at the harness side.
Continuity between 2 and body earth
OK:Continuity present when UP sunroof switch is on
Continuity between 3 and body earth
OK:Continuity present when CLOSE/DOWN sunroof switch
is on
Continuity between 4 and body earth
OK:Continuity present when OPEN sunroof switch is onNGCheck the following connectors:
D-10, D-07NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wire between sun-
roof-ECU and sunroof switch, between
sunroof switch and the earth, and repair
if necessary.
OK
Check the sunroof motor. (Refer to P.42-17.)
Check limit switch continuity. (Refer to P.42-17.)NG
Replace
OK
Measure at the sunroof motor connector D-12.
Disconnect the connector and measure at the harness side.
Continuity between 4 and body earth
OK:ContinuityNGCheck the following connectors:
B-44, D-12NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wire between sun-
roof motor and the earth, and repair
if necessary.
OK
Check the following connectors:
D-12, D-10NG
Repair
OK
Check trouble symptoms.NGCheck the harness wire between sun-
roof-ECU and sunroof motor.NG
Repair
OK
Replace the sunroof-ECU.
Measure at the sunroof-ECU connector D-10.
Disconnect the connector and measure at the harness side.
Ignition switch: ON
(1) Voltage between 5 and body earth
OK:System voltage
(2) Voltage between 7 and body earth
OK:System voltage
(3) Continuity between 18 and body earth
OK:Continuity(1) NGCheck the following connectors:
B-44, B-74, B-76, D-10NG
Repair
BODY – Sunroof42-11
Inspection Procedure 2
The motor does not reverse its direction when a load of
140 N or more is applied while the sunroof is closing.
Probable cause
The sunroof-ECU monitors the load conditions from the amount of current flowing
to the motor. If more than the constant amount of current is flowing, the direction
of motor operation is reversed to prevent jamming.
If the motor does not reverse direction even when an excessive load is being applied,
the cause may be a malfunction of the sunroof-ECU.Malfunction of sunroof-ECU
Replace the sunroof-ECU.
Inspection Procedure 3
The timer does not operate for 30 seconds after the
ignition switch is turned to OFF.
Probable cause
The sunroof-ECU has a timer function which operates for 30 seconds after the ignition
switch is turned to OFF. If the timer does not operate, the cause may be a malfunction
of the sunroof-ECU or of the wiring harness or connector.Malfunction of sunroof-ECU
Malfunction of wiring harness or connector
Measure at the sunroof-ECU connector
D-10.
Disconnect the connector and
measure at the harness side.
Voltage between 7 and body earth
OK:System voltageNGCheck the following connectors:
B-44, B-76, B-73NG
Repair
OK
Check trouble symptoms.
OK
Replace the sunroof-ECU.
Check the harness wire between fusible
link No.1 and sunroof-ECU, and repair
if necessary. NG
Inspection Procedure 4
Opening or closing of the sunroof is possible for 30
seconds after turning the ignition switch to OFF, but the
timer function is not extended when the driver’s side door
is opened within this period.
Probable cause
The sunroof timer operation period is extended when an on signal is output from
the driver’s-side door switch. Because of this, if the timer operation period is not
extended, the cause may be a malfunction of the door switch input circuit.Malfunction of the front door switch (driver’s side)
Malfunction of sunroof-ECU
Malfunction of wiring harness or connector
Check front door switch (driver’s side)
continuity.NG
Replace
OK
Check the following connectors:
B-44, D-03, D-10NG
Repair
OK
Check trouble symptoms.NGCheck the harness wire between front
door switch (driver’s side) and sunroof-
ECU.NG
Repair
OK
Replace the sunroof-ECU.
BODY – Sunroof42-12
TERMINAL VOLTAGE CHART
Terminal No.Check ItemCheck ConditionNormal Condition
1Door switch inputDriver’s door switchON0 V
OFFSystem voltage
2Sunroof switch (up) inputSunroof switch
(up position)
ON0 V
(up position)
OFFSystem voltage
3Sunroof switch (close or
down) input
Sunroof switch (close
position or down position)
ON0 V
down) inputposition or down position)
OFFSystem voltage
4Sunroof switch (open
input)
Sunroof switch
(open position)
ON0 V
input)(open position)
OFFSystem voltage
5ECU power supplyIgnition switch: ONSystem voltage
6Motor output (When
sunroof is opening)While sunroof is opening or moving
downSystem voltage
Other than the above0 V
7Timer operation power
supplyAlwaysSystem voltage
8Motor output (When
sunroofis closing)
While sunroof is closing or moving upSystem voltage
sunroof is closing)
Other than the above0 V
9Limit switch 3 inputIn tilt up condition and fully-open
condition0 V
Other than the aboveSystem voltage
10Limit switch 1 inputIn tilt up conditionSystem voltage
In fully-closed and fully-open conditions0 V
In slide-closing condition0 V → System voltage →
0V.
12Limit switch 2 inputIn tilt up condition and fully-closed
conditionSystem voltage
Other than the above0 V
18EarthAlways0 V