CODE NO. L0632:
S/R Switch fall
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Before replacing the ECU,
ensure that the input and output signal circuits are normal.
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COMMENTS ON TROUBLE SYMPTOM
Current trouble
- If each switch (up, open, close/down) of the sunroof switch has been ON
for 60 seconds, ETACS-ECU sets the diagnosis code No. L0632.
PROBABLE CAUSES
- Malfunction of the sunroof motor assembly
- Malfunction of the sunroof switch
- Damaged wiring harness and connectors
DIAGNOSTIC PROCEDURE
STEP 1. Check of open circuit in UP, OPEN, CLOS line between
sunroof motor assembly connector and sunroof switch connector.
Q.
Is the check result normal?
Go to Step 2.
Repair the connector(s) or wiring harness.
STEP 2. Diagnosis code recheck
Replace the sunroof switch. Recheck if the diagnosis code is set.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from the LOCK (OFF) position to the ON position.
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(3)Check if the diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the sunroof motor assembly.
The diagnosis is complete.