2003 LEXUS LS430 lock

Fig. 81: Identifying DLC3 Connector terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Measure the resistance according to the value (s) in the table below.
Result:
DLC3 CONNECTOR TERMINALS RESISTANCE
Tester connectionConditionSpecified valueResult
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF108 to 132 ohmsA
D1-6 (CANH) - D1-14 (CANL)Ignition Switch OFF132ohmsor moreB

Fig. 86: Disconnecting DLC3 Sub Bus Line Connector (J42) From D-CAN J/C B Side (W/O Earth
Terminal)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

Fig. 125: Disconnecting DLC3 Sub Bus Line Connector (J42) From D-CAN J/C B Side (W/O Earth
Terminal)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

Fig. 155: Disconnecting DLC3 Sub Bus Line Connector (J42) From D-CAN J/C B Side (W/O Earth
Terminal)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

Fig. 189: Identifying DLC3 Sub Bus Line Connector (J42)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

Fig. 216: Identifying DLC3 Sub Bus Line Connector (J42)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

Fig. 256: Identifying DLC3 Sub Bus Line Connector (J42)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the DLC3 sub bus line connector (J42) from the D-CAN J/C B side (w/o earth
terminal).

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: Go to next step
7.INSPECT RELAY (Marking: D-IG1)
a. Remove the D-IG1 relay from the driver side J/B.
b. Measure the resistance of the relay.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
Fig. 57: Identifying D
-IG1 Relay Terminals And Circuit
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPLACE RELAY
OK: REPLACE PASSENGER SIDE JUNCTION BLOCK
Tester ConnectionSpecified Condition
3 - 510 kohms or higher
3 - 5Below 1 ohms (when battery voltage is applied to terminal 1 and 2)