2003 LEXUS LS430 Factory Repair Manual

Page 1225 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 26: DTC Outputs Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
ocirc: Outputs 
Delta: Outputs under the following condition

Page 1226 of 4500

LEXUS LS430 2003  Factory Repair Manual x: Not output 
-: Undetectable 
HINT: 
see SKID CONTROL ECU COMMUNICATION STOP MODE .  
see STEERING SENSOR COMMUNICATION STOP MODE .  
see YAW RATE SENSOR COMMUNICATION STOP MODE .  
see GATEWAY ECU

Page 1227 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 27: Display OBD/MOBD Menu Screen 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
1.BUS CHECK 
HINT: 
The ECUs and sensors that are properly connected to the CAN communication system can be display

Page 1228 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 28: Display ENTER Button 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Press "ENTER" on the hand-held tester via CAN VIM.

Page 1229 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 29: [Displays ECUs And Sensors] 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. The screen displays the ECUs and sensors that are properly connected to the CAN communication 
system. 
HINT: 
Th

Page 1230 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 30: ECUS And Sensors Checking Method Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
1.FAIL-SAFE FUNCTION 
a. When communication fails in any of the CAN bus lines (communication lines) due t

Page 1231 of 4500

LEXUS LS430 2003  Factory Repair Manual Dynamic 
Radar/Laser 
Cruise 
(Maintains 
vehicle-to-
vehicle 
distance)
Tx 
RxTx Rx  Tx Rx    
Vehicl
Vehi
dista
n
control 
not op
e
Back 
Monitor 
(Exterior 
view from 
rear of 
vehicle is 
displaye

Page 1232 of 4500

LEXUS LS430 2003  Factory Repair Manual HINT: 
Rx: Reception from each ECU (sensor).  
Tx: Transmission to each ECU (sensor).  
1.DTC TABLE BY ECU 
HINT: 
If CAN communication system DTCs are output, trouble cannot be determined only by the