LEXUS LS430 2003 Factory Repair Manual
LS430 2003
LEXUS
LEXUS
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LEXUS LS430 2003 Factory Repair Manual
Page 1315 of 4500
NG: REPAIR OR REPLACE STEERING SENSOR SUB BUS LINE OR CONNECTOR (CAN-H,
CAN-L)
26.CONNECT CONNECTOR
a. Reconnect the CAN main bus line connector (J45) to the P-CAN J/C A side (w/earth terminal).
27.CHECK CAN BUS LINES FOR SHORT CIRCUIT (CAN BUSES TO LUG-CAN J/C)
Fig. 107: Disconnecting CAN Main Bus Line Connector (J49) From LUG
-CAN J/C A Side
(W/Earth Terminal)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Page 1319 of 4500
OK: Go to step 34
NG: GO TO NEXT STEP
30.CONNECT CONNECTOR
a. Reconnect the distance control ECU sub bus line connector (J48) to the P-CAN J/C B side (w/o
earth terminal).
31.CHECK CAN BUS LINES FOR SHORT CIRCUIT (YAW RATE SENSOR SUB BUS LINE)
Fig. 111: Disconnecting Yaw Rate Sensor Sub Bus Line Connector (J44) From P
-CAN J/C A Side
(W/Earth Terminal)
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1320 of 4500
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the yaw rate sensor sub bus line connector (J44) from the P-CAN J/C A side (w/earth
terminal).
Fig. 112: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the resistance according to the value (s) in the table below.
Standard:
DLC3 CONNECTOR TERMINALS RESISTANCE
Tester connectionConditionSpecified value
Page 1321 of 4500
OK: Go to step 36
NG: GO TO NEXT STEP
32.CONNECT CONNECTOR
a. Reconnect the yaw rate sensor sub bus line connector (J44) to the P-CAN J/C A side (w/earth
terminal).
33.CHECK CAN BUS LINES FOR SHORT CIRCUIT (P-CAN J/C - LUG-CAN J/C)
Fig. 113: Disconnecting CAN Main Bus Line Connector (J47) From P
-CAN J/C B Side (W/O Earth
Terminal)
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1324 of 4500
b. Measure the resistance according to the value (s) in the table below.
Standard:
DLC3 CONNECTOR TERMINALS RESISTANCE
OK: REPLACE DISTANCE CONTROL ECU ASSY (SEE REPLACEMENT
)
NG: REPAIR OR REPLACE DISTANCE CONTROL ECU SUB BUS LINE OR CONNECTOR
(CAN-H, CAN-L)
36.CONNECT CONNECTOR
a. Reconnect the yaw rate sensor sub bus line connector (J44) to the P-CAN J/C A side (w/earth
terminal).
37.CHECK CAN BUS LINES FOR SHORT CIRCUIT (YAW RATE SENSOR SUB BUS LINE)
Tester connectionConditionSpecified value
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1325 of 4500
Fig. 116: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the yaw rate sensor connector (Y1).
b. Measure the resistance according to the value (s) in the table below.
Standard:
DLC3 CONNECTOR TERMINALS RESISTANCE
OK: REPLACE YAW RATE SENSOR (SEE REPLACEMENT
)
NG: REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H,
CAN-L)
38.CONNECT CONNECTOR
a. Reconnect the CAN main bus line connector (J49) to the LUG-CAN J/C A side (w/earth terminal).
39.CHECK CAN BUS LINES FOR SHORT CIRCUIT (TELEVISION CAMERA ECU)
Tester connectionConditionSpecified value
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1345 of 4500
Fig. 136: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the resistance according to the value (s) in the table below.
Standard:
DLC3 CONNECTOR TERMINALS RESISTANCE
OK: Go to step 22
NG: GO TO NEXT STEP
12.CONNECT CONNECTOR
a. Reconnect the skid control ECU sub bus line connector (J41) to the D-CAN J/C B side (w/o earth
terminal).
13.CHECK CAN BUS LINES FOR SHORT CIRCUIT (STEERING SENSOR SUB BUS LINE)
Tester connectionConditionSpecified value
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1346 of 4500
Fig. 137: Disconnecting Steering Sensor Sub Bus Line Connector (J43) From D-CAN J/C B Side
(W/O Earth Terminal)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the steering sensor sub bus line connector (J43) from the D-CAN J/C B side (w/o earth
terminal).
Page 1347 of 4500
Fig. 138: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the resistance according to the value (s) in the table below.
Standard:
DLC3 CONNECTOR TERMINALS RESISTANCE
OK: Go to step 24
NG: GO TO NEXT STEP
14.CONNECT CONNECTOR
a. Reconnect the steering sensor sub bus line connector (J43) to the D-CAN J/C B side (w/o earth
terminal).
15.CHECK CAN BUS LINES FOR SHORT CIRCUIT (D-CAN J/C)
Tester connectionConditionSpecified value
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1354 of 4500
OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (SEE REPLACEMENT )
NG: REPAIR OR REPLACE SKID CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-
H, CAN-L)
24.CONNECT CONNECTOR
a. Reconnect the steering sensor sub bus line connector (J43) to the D-CAN J/C B side (w/o earth
terminal).
25.CHECK CAN BUS LINES FOR SHORT CIRCUIT (STEERING SENSOR SUB BUS LINE)
Fig. 145: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the steering sensor connector (S16).
b. Measure the resistance according to the value (s) in the table below.
Standard:
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF54 to 69 ohms