
BODY –
Sunroof
42-11
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.
D
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.
D
Malfunction of sunroof-ECU
D
Malfunction of wiring harness or connector
Measure at the sunroof-ECU connector
D-10.
D
Disconnect the connector and
measure at the harness side.
D
Voltage between 7 and body earth
OK: System voltage
NG
Check the following connectors:
B-44, B-76, B-73
NG
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.
D
Malfunction of the front door switch (driver’s side)
D
Malfunction of sunroof-ECU
D
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-10
NG
Repair
OK
Check trouble symptoms.
NG
Check the harness wire between front
door switch (driver’s side) and sunroof-
ECU.
NG
Repair
OK
Replace the sunroof-ECU.