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RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

after battery change ? back windows need to reset, what else ??

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Old Apr 14, 2011 | 06:04 AM
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ycl1688's Avatar
ycl1688
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Joined: Jul 2009
Posts: 158
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From: il
Default after battery change ? back windows need to reset, what else ??

after battery changed, both my rear power windows could not slide down by driver side, so i have to individually set the windows up and down. I remember there is a sticker by the air filter cabin reminding moon roof has to be reset ? how ?
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Old Apr 14, 2011 | 06:51 AM
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dcdyd
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Joined: Feb 2011
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From: MN
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You need to reset(initialize)following items based on what you have.

- Power Window Control System

a. Turn the ignition switch ON.
b. Halfway open the power window by pressing the power window switch.
c. Fully pull up the switch until the power window is fully closed and continue to hold the switch for
approx. 1 second after the power window is fully closed.
d. Check that the AUTO UP/DOWN function operates normally.
If the AUTO UP/DOWN function operates normally, reset operations have been completed at this
time. If not normal, follow steps below.
1. Disconnect the negative battery terminal for 10 seconds.
2. Connect the battery terminal.
3. Turn the ignition switch ON.
4. Halfway open the power window by pressing the power window switch.
5. If the AUTO UP/DOWN function operates normally, reset operations have been completed
at this time.
If not normal, follow steps below.
6. Turn the ignition switch ON.
7. Halfway open the power window by pressing the power window switch.
8. Fully pull up the switch until the power window is fully closed and continue to hold the
switch for approx. 12 seconds after the power window is fully closed.
9. Check that the AUTO UP/DOWN function operates normally.


- Power Back Door System

a. The power back door ECU records the fully open position and the fully closed position of the
power back door in its memory and the power back door fully opens and fully closes based on this
memory.In the case where any of the batteries , fuses , power back door ECU or power back door
drive unit are removed and then reinstalled, the power back door ECU loses the memory of the
door positions. In such cases, resetting the system is necessary . However, the back door closer
system has no effect on ECU memory.
Reset the power back door system as follows:
1. Fully close the power back door if opened.
2. Check that the back door fully opens and fully closes.
 Unlock the power back door using the unlock button on the transmitter switch or the
door control switch.
 Turn the ignition switch off.
 Check that the power back door main switch is not pushed.
 Check that the power back door fully opens and fully closes by pushing the power
back door opener/closer switch or PWR button on the transmitter switch.
HINT:
The jam protection function is enabled through the above initialization procedure.

- Sliding Roof System (for Multi-panel Moon Roof)

a. The sliding roof may not operate automatically and the jam protection function will not function
correctly after you reconnect, replace or recharge the battery. In any of these cases, reset the sliding
roof system using the following method.
1. Press the sliding roof switch on SLIDE CLOSE or TILT DOWN side and hold it. When the
roof glass stops at the fully closed position for 1 second, the reset of the motor is completed.
HINT:
If the battery terminal is disconnected, the ECU of the sliding roof motor may not detect the
position of the roof glass. If the AUTO operation function is still disabled even after the
sliding roof motor is reset, the Hall IC (built in the sliding roof motor assembly) for detecting
the roof glass position may be malfunctioning.

- Sliding Roof System (for Standard)

a. The sliding roof may not operate automatically and the jam protection function will not function
correctly after you reconnect, replace or recharge the battery. In any of these cases, reset the sliding
roof system using the following method.
1. Push and hold the slide switch toward the front or tilt switch on the rear side.
2. Check that the sliding roof will tilt up and down, or slide open and close.
3. After the slide operation, release the switch.
4. Make sure that the sliding roof opens and closes automatically.
HINT:
If the battery terminal is disconnected, the ECU of the sliding roof motor may not detect the
position of the roof glass. If the AUTO operation function is still disabled even after the
sliding roof motor is reset, the hall IC (built in the sliding roof motor assembly) for detecting
the roof glass position may be malfunctioning.
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