Lexus ES: System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU (Transmitter) | Receiving ECU | Signal | Communication Method |
Main Body ECU (Multiplex Network Body ECU) | Multiplex Tilt and Telescopic ECU | -
IG SW signal
-
Store command of driver seat memory
-
Recall command of driver seat memory
-
Auto away/return state signal
| CAN |
Position Control ECU Assembly (Driver Seat) | Multiplex Tilt and Telescopic ECU | -
Memory recall signal
-
Start signal to play tilt and telescopic steering
-
Stop signal to play memory
|
Combination Meter Assembly | Multiplex Tilt and Telescopic ECU | Vehicle speed signal |
Multiplex Tilt and Telescopic ECU | Main Body ECU (Multiplex Network Body ECU) | State signal of tilt and telescopic steering |
Multiplex Tilt and Telescopic ECU | Position Control ECU Assembly (Driver Seat) | -
Tilt and telescopic recall and execution signal
-
Tilt and telescopic recall and end signal
|
Tilt and Telescopic Switch | Multiplex Tilt and Telescopic ECU | Tilt and Telescopic Switch signal | Direct line |
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SYSTEM DESCRIPTION FUNCTION OF MAIN COMPONENTS Component Function Multiplex tilt and telescopic ECU This ECU sends a control signal to the tilt motor (steering column assembly) and telescop
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary bat
CUSTOMIZE PARAMETERS CUSTOMIZE POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM HINT: The following items can be customized. NOTICE:
When the customer requests a change in a function, first m
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DESCRIPTION The front center ultrasonic sensor RH is installed to the front bumper. The clearance warning ECU assembly detects obstacles based on signals received from the front center ultrasonic sensor RH. If the front center ultrasonic sensor RH has an open circuit or other malfunction, it will no
INSPECTION PROCEDURE 1. INSPECT FRONT OIL PUMP ASSEMBLY (a) Install the oil pump drive shaft sub-assembly to the front oil pump assembly. NOTICE:
To avoid damaging the bush of the front oil pump assembly, install the oil pump drive shaft sub-assembly perpendicularly relative to the front oil pump
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