INSPECTION PROCEDURE A-2: Any of The Sunroof Switch Positions is
Defective.
caution
Whenever the ECU is replaced, ensure that
the input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If any of the sunroof switch
positions is defective, the communication line between the sunroof
switch and the sunroof motor assembly (sunroof-ECU) may be
defective.
POSSIBLE CAUSES
Malfunction of the sunroof switch
Malfunction of the sunroof motor assembly (sunroof-ECU)
STEP 3. Connector check: E-03
sunroof motor assembly connector
Q.
Is the check result normal?
Go to Step
4.
Repair the
connector.
STEP 4. Retest the
system.
Q.
Which switch position is defective?
"UP" : Go to Step
5.
"OPEN" : Go to Step
6.
"CLOSE/DOWN" : Go to Step
7.
STEP 5. Check the wiring harness between
E-03 sunroof motor assembly connector terminal No.7 and E-02 sunroof
switch connector terminal No.3.
Check the communication line for open circuit.
Q.
Is the check result normal?
Go to Step
8.
Repair the wiring
harness.
STEP 6. Check the wiring harness
between E-03 sunroof motor assembly connector terminal No.8 and E-02
sunroof switch connector terminal No.5.
Check the communication line for open circuit.
Q.
Is the check result normal?
Go to Step
8.
Repair the wiring
harness.
STEP 7. Check the wiring harness
between E-03 sunroof motor assembly connector terminal No.6 and E-02
sunroof switch connector terminal No.6.
Check the communication line for open circuit.
Q.
Is the check result normal?
Go to Step
8.
Repair the wiring
harness.
STEP 8. Retest the
system.
The sunroof function should work normally.
Q.
Is the check result normal?
The trouble can be an
intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points - How to Cope with
Intermittent Malfunction ).