LEXUS LS430 2003 Factory Repair Manual

Fig. 15: Wiring Diagram For Identifying Can J/C Connectors ( (W/O Lexus Navigation
System))
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 16: Identifying DCL3 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2.DLC3
a. Measure the resistance according to the value (s) in the table below.
Standard:
ECM CONNECTOR TERMINALS RESISTANCE
TerminalsWiring ColorConditionSpecified Condition
D1-6 (CANH) - D1-14 (CANL)B - WIgnition Switch OFF54 to 69 ohms
D1-6 (CANH) - D1-4 (CG)B - W-BIgnition Switch OFF1 kohms or more
D1-14 (CANL) - D1-4 (CG)W - W-BIgnition Switch OFF1 kohms or more
D1-6 (CANH) - D1-16 (BAT)B - BIgnition Switch OFF1 Mohms or more
D1-14 (CANL) - D1-16 (BAT)W - BIgnition Switch OFF1 Mohms or more

Fig. 17: Identifying Skid Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.SKID CONTROL ECU
a. Measure the resistance according to the value (s) in the table below.
Standard:
SKID CONTROL ECU CONNECTOR TERMINALS RESISTANCE
TerminalsWiring ColorConditionSpecified Condition
S42-11 (CANH) - S42-25 (CANL)BR - YIgnition Switch OFF54 to 69 ohms
S42-11 (CANH) - S42-32 (GND1)BR - W-BIgnition Switch OFF1 kohms or more
S42-25 (CANL) - S42-32 (GND1)Y - W-BIgnition Switch OFF1 kohms or more
S42-11 (CANH) - S42-31 (+BS)BR - BIgnition Switch OFF1 Mohms or more
S42-25 (CANL) - S42-31 (+BS)Y - BIgnition Switch OFF1 Mohms or more

Fig. 18: Identifying Steering Sensor Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
4.STEERING SENSOR
a. Measure the resistance according to the value (s) in the table below.
Standard:
STEERING SENSOR CONNECTOR TERMINALS RESISTANCE
TerminalsWiring ColorConditionSpecified Condition
S16-10 (CANH) - S16-9 (CANL)LG - LIgnition Switch OFF54 to 69 ohms
S16-10 (CANH) - S16-2 (ESS)LG - W-BIgnition Switch OFF1 kohms or more
S16-9 (CANL) - S16-2 (ESS)L - W-BIgnition Switch OFF1 kohms or more
S16-10 (CANH) - S16-3 (BAT)LG - L-YIgnition Switch OFF1 Mohms or more
S16-9 (CANL) - S16-3 (BAT)L - L-YIgnition Switch OFF1 Mohms or more

Fig. 19: Identifying Yaw Rate Sensor Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
5.YAW RATE SENSOR
a. Measure the resistance according to the value (s) in the table below.
Standard:
YAW RATE SENSOR CONNECTOR TERMINALS RESISTANCE
TerminalsWiring ColorConditionSpecified Condition
Y1-3 (CANH) - Y1-2 (CANL)BR - YIgnition Switch OFF54 to 69 ohms
Y1-3 (CANH) - Y1-1 (GND)BR - W-BIgnition Switch OFF1 kohms or more
Y1-2 (CANL) - Y1-1 (GND)Y - W-BIgnition Switch OFF1 kohms or more
Y1-3 (CANH) - D1-16 (BAT)BR - BIgnition Switch OFF1 Mohms or more
Y1-2 (CANL) - D1-16 (BAT)Y - BIgnition Switch OFF1 Mohms or more

Fig. 20: Identifying Distance Control ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6.DISTANCE CONTROL ECU
a. Measure the resistance according to the value (s) in the table below.
Standard:
DISTANCE CONTROL ECU CONNECTOR TERMINALS RESISTANCE
Fig. 21: Identifying Television Camera ECU Connector Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.TELEVISION CAMERA ECU
a. Measure the resistance according to the value (s) in the table below.
Standard:
TerminalsWiring ColorConditionSpecified Condition
D2-8 (CANH) - D2-9 (CANL)LG - LIgnition Switch OFF54 to 69 ohms
D2-8 (CANH) - D2-12 (GND)LG - BRIgnition Switch OFF1 kohms or more
D2-9 (CANL) - D2-12 (GND)L - BRIgnition Switch OFF1 kohms or more
D2-8 (CANH) - D1-16 (BAT)LG - BIgnition Switch OFF1 Mohms or more
D2-9 (CANL) - D1-16 (BAT)L- BIgnition Switch OFF1 Mohms or more

TELEVISION CAMERA ECU CONNECTOR TERMINALS RESISTANCE
Fig. 22: Identifying ECM Connector Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
8.ECM
a. Measure the resistance according to the value (s) in the table below.
Standard:
ECM CONNECTOR TERMINALS RESISTANCE
TerminalsWiring ColorConditionSpecified Condition
T24-8 (CANH) - T24-7 (CANL)LG - LIgnition Switch OFF54 to 69 ohms
T24-8 (CANH) - T25-8 (GND1)LG - W-BIgnition Switch OFF1 kohms or more
T24-7 (CANL) - T25-8 (GND1)L - W-BIgnition Switch OFF1 kohms or more
T24-8 (CANH) - T25-1 (+B)LG - RIgnition Switch OFF1 Mohms or more
T24-7 (CANL) - T25-1 (+B)L - RIgnition Switch OFF1 Mohms or more
TerminalsWiring ColorConditionSpecified Condition
E3-25 (CANH) - E3-24 (CANL)R- WIgnition Switch OFF54 to 69 ohms
E3-25 (CANH) - E3-2 (EC)R - W-BIgnition Switch OFF1 kohms or more
E3-24 (CANL) - E3-2 (EC)W - W-BIgnition Switch OFF1 kohms or more

Standard:
Fig. 23: Identifying Gateway ECU Connector Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
9.GATEWAY ECU
a. Measure the resistance according to the value (s) in the table below.
GATEWAY ECU CONNECTOR TERMINALS RESISTANCE
E3-25 (CANH) - E3-4 (BATT)R - B-RIgnition Switch OFF1 Mohms or more
E3-24 (CANL) - E3-4 (BATT)W - B-RIgnition Switch OFF1 Mohms or more
TerminalsWiring ColorConditionSpecified Condition
G3-17 (CA1H) - G3-18 (CA1L)LG - LIgnition Switch OFF54 to 69 ohms
G3-17 (CA1H) - G3-24 (GND)LG - W-BIgnition Switch OFF1 kohms or more
G3-18 (CA1L) - G3-24 (GND)L - W-BIgnition Switch OFF1 kohms or more
G3-17 (CA1H) - G3-10 (BATT)LG - L-YIgnition Switch OFF1 Mohms or more
G3-18 (CA1L) - G3-10 (BATT)L - L-YIgnition Switch OFF1 Mohms or more