Before replacing the ECU,
ensure that the input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the pulse 1 signal from the rear power window motor (RH) cannot be received, the rear
power window sub switch (RH) sets the diagnosis trouble code No. L0A30.
PROBABLE CAUSES
Malfunction of the rear power window motor (RH)
Malfunction of the rear power window sub switch (RH)
Damaged wiring harness and connectors
DIAGNOSTIC PROCEDURE
STEP 1. Connector check: E-10 rear power window sub switch
(RH) connector, E-11 rear power window motor (RH) connector
Q.
Is the check result normal?
Go to Step 2.
Repair the defective connector.
STEP 2. Check of the wiring harness between the E-10 rear power window
sub switch (RH) connector terminal No. 8, 3 and the E-11 rear power window motor (RH) connector
terminal No. 2, 6
Check the input/output lines for open circuit and short circuit.
Q.
Is the check result normal?
Go to Step 3.
Repair the wiring harness.
STEP 3. Diagnosis code recheck
Replace the rear power window motor (RH). Recheck if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Turn the ignition switch from the LOCK (OFF) position to the ON position.
)
)
)
Go to Step 2.
Repair the defective connector.