Lexus ES300 (2002 year). Service manual - part 89
BODY ELECTRICAL – ACCESSORIES
BE-72
Service Tip
The moon roof ECU memorizes the initial position of the moon roof, therefore, the data will be lost when
the battery terminal is removed, so that only manual operation is available. After connecting the battery
terminal, move the moon roof once to the tilt-up full open state with a manual operation. With this, the
moon roof ECU will memorize the initial position again.
For details, refer to the 2002 LEXUS ES300 Repair Manual (Pub. No. RM911U).
OUTSIDE REAR VIEW MIRROR
On the ’02 ES300, “automatic glare-resistant EC (Electrochromic) mirror”, “electrical remote control type
mirror”, “memory function”, and “rear window defogger-linked mirror heater” function have been used.
The outside rear view mirror has following functions:
Function
Outline
Electrical Remote Control
type Mirror
When the mirror control switch is operated, this function moves the mirror
surface vertically or laterally to enable the driver to attain an optimal mirror
angle.
Setting the mirror master switch to the “R” position operates the right
mirror, and to the “L” position operates the left mirror.
Rear Window
Defogger-linked
Mirror Heater
This function also automatically turns ON the mirror heater when the rear
window defogger switch is turned ON.
After 15 minutes have elapsed from the time this function has been
activated, the rear window defogger turns OFF automatically, and the
mirror heater also turns OFF.
Automatic Glare-resistant
EC Mirror
This function prevents the glare of the headlights of the vehicle being driven
behind that are reflected on the mirror from blinding the driver during
nighttime driving. It works in unison with the inner mirror to reduce the
amount of reflection.
For details, refer to the Inside Rear View Mirror section.
Memory Function*
This function stores 2 mirror adjustment positions in the mirror memory
ECU. Thus, the mirrors can be adjusted to the positions that are stored in the
mirror memory ECU by pressing the memory switch.
This function operates by linking with the driver seat position memorized
in the memory seat ECU.
For details, refer to the Memory System section.
*: Optional Equipment
MOON ROOF
This system is optional equipment. The moon roof system has the following functions.
Function
Outline
One touch tilt up-and-down
function
The “tilt one touch auto up-and-down” function enables the moon roof to
be tilt up or down a touch of the tilt up switch or slide close switch.
One touch open-and-close
function
The “one touch auto open-and-close” function enables the moon roof to be
open or close a touch of the slide open switch or slide close switch.
Jam protection function
The “jam protection” function detects if a foreign object gets caught while
the moon roof is closing (in the slide-close or tilt-down mode).
On the ’01 ES300, the moon roof position was detected by a limit switch. However, the ’02 ES300 discon-
tinued the limit switch and has adopted a new mechanism to detect the position by using a pulse sensor
(Hall IC), in which the position is detected by counting the pulses output during the moon roof has traveled
from specified initial position.