Section 330 (Interior Light System): Inspection

WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FRONT PERSONAL LIGHT SWITCH CONTINUITY

FRONT PERSONAL LIGHT SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

Interior light switch OFF (Lever switch)

No continuity

Interior light switch DOOR (Lever switch)

1 - 3

Continuity

Interior light switch ON (Lever switch)

1 - 2

Continuity

⁽¹⁾Personal light OFF (Push switch)

No continuity

⁽¹⁾Personal light ON (Push switch)

1 - 2

Continuity

⁽¹⁾	Set the interior light switch to OFF or DOOR.

If continuity is not as specified, replace the light assembly or bulb.

Fig 1: Inspecting Front Personal Light Switch Continuity

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT FRONT PERSONAL LIGHT SWITCH CIRCUIT

(See ILLUMINATION CIRCUIT )

Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 2.

Fig 2: Identifying Terminals Of Front Personal Light Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

FRONT PERSONAL LIGHT SWITCH CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Ground	Constant	Continuity
1 - Ground	Constant	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.

INSPECT REAR PERSONAL LIGHT SWITCH CONTINUITY

REAR PERSONAL LIGHT SWITCH CONTINUITY

Switch position	Tester connection	Specified condition
Room light switch OFF and door closed	-	No continuity
Room light switch ON and door closed	1 - 2	Continuity
Room light switch OFF or ON and door opened	1 - 3	Continuity

If continuity is not as specified, replace the light assembly or bulb.

Fig 3: Identifying Terminals Of Rear Personal Light Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT REAR PERSONAL LIGHT SWITCH CIRCUIT

Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 4.

Fig 4: Identifying Terminals Of Rear Personal Light Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REAR PERSONAL LIGHT SWITCH CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Ground	Constant	Continuity
1 - Ground	Constant	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.

INSPECT VANITY LIGHT CONTINUITY

VANITY LIGHT CONTINUITY

Switch position	Tester connection	Specified condition
OFF (closed)	-	No continuity
ON (opened)	1 - 2	Continuity

If continuity is not as specified, replace the vanity light assembly or bulb.

Fig 5: Identifying Terminals Of Vanity Light Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT VANITY LIGHT CIRCUIT

Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 6.

Fig 6: Identifying Terminals Of Vanity Light Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

VANITY LIGHT CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Ground	Constant	Continuity
1 - Ground	Constant	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.

Front door: INSPECT DOOR COURTESY SWITCH CONTINUITY
1. Connect the connector to the front door ECU.
2. Check that continuity exists between terminals 1 and 2 when door is opened.
3. Check that no continuity exists between terminals 1 and 2 when door is closed.
If continuity is not as specified, replace the switch.
Front door: INSPECT DOOR COURTESY SWITCH CIRCUIT
Driver side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Passenger side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Fig 7: Inspecting Door Courtesy Switch Continuity (Front Door)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Rear door: INSPECT DOOR COURTESY SWITCH CONTINUITY
1. Connect the connector to the rear door ECU.
2. Check that continuity exists between terminals 1 and 2 when door is opened.
3. Check that no continuity exists between terminals 1 and 2 when door is closed.
If continuity is not as specified, replace the switch.
Rear door: INSPECT DOOR COURTESY SWITCH CIRCUIT
Rear LH side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Rear RH side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Fig 8: Inspecting Door Courtesy Switch Continuity (Rear Door)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT DOOR COURTESY LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

If continuity is not as specified, replace the light assembly or bulb.

Fig 9: Identifying Terminals Of Door Courtesy Light Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT DOOR COURTESY LIGHT CIRCUIT
Driver side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Passenger side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Rear LH side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Rear RH side: (See DOOR COURTESY LIGHT AND COURTESY SWITCH CIRCUIT )

Fig 10: Identifying Terminals Of Door Courtesy Light Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

Switch position	Tester connection	Specified condition
OFF (closed)	-	No continuity
ON (opened)	2 - Switch body	Continuity

If continuity is not as specified, replace the switch.

Fig 11: Identifying Terminals Of Luggage Compartment Door Courtesy Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT

(See LUGGAGE COMPARTMENT DOOR LOCK & UNLOCK SWITCH CIRCUIT )

Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 12.

Fig 12: Identifying Terminals Of Luggage Compartment Door Courtesy Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Body ground	Luggage compartment door courtesy switch ON (door opened)	Continuity

If circuit is not as specified, inspect power source or wire harness.

INSPECT LUGGAGE COMPARTMENT LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

If continuity is not as specified, replace the light assembly or bulb.

Fig 13: Identifying Terminals Of Luggage Compartment Light Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT LUGGAGE COMPARTMENT LIGHT CIRCUIT

Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 14.

Fig 14: Identifying Terminals Of Luggage Compartment Light Connector

LUGGAGE COMPARTMENT LIGHT CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
1 - Body ground	Constant	Continuity

If circuit is not as specified, inspect power source or wire harness.

INSPECT GLOVE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

GLOVE COMPARTMENT DOOR COURTESY SWITCH CONTINUITY

Switch position	Tester connection	Specified condition
OFF (closed)	-	No continuity
ON (opened)	1 - 2	Continuity

If continuity is not as specified, replace the switch.

Fig 15: Inspecting Glove Compartment Door Courtesy Switch

INSPECT GLOVE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT

Disconnect the connector from the switch and inspect the connector on the wire harness side, as shown in Fig 16.

Fig 16: Identifying Terminals Of Glove Compartment Door Courtesy Switch Connector

GLOVE COMPARTMENT DOOR COURTESY SWITCH CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Ground	Constant	Continuity
1 - Ground	Light control switch OFF	No voltage
1 - Ground	Light control switch TAIL or HEAD	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.

INSPECT GLOVE COMPARTMENT LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

If continuity is not as specified, replace the light assembly or bulb.

Fig 17: Identifying Terminals Of Glove Compartment Light Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT GLOVE COMPARTMENT LIGHT CIRCUIT

Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 18.

Fig 18: Identifying Terminals Of Glove Compartment Light Connector

GLOVE COMPARTMENT LIGHT CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
2 - Ground	Glove compartment door courtesy switch ON	Continuity
1 - Ground	Light control switch in TAIL or HEAD	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.

INSPECT LICENCE PLATE LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

If continuity is not as specified, replace the light assembly or bulb.

Fig 19: Identifying Terminals Of Licence Plate Light Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT LICENCE PLATE LIGHT CIRCUIT

Disconnect the connector from the light and inspect the connector on the wire harness side, as shown in Fig 20.

Fig 20: Identifying Terminals Of Licence Plate Light Connector

LICENCE PLATE LIGHT CONNECTOR SPECIFIED CONDITION

Tester connection	Condition	Specified condition
1 - Ground	Constant	Continuity
2 - Ground	Light control switch TAIL or HEAD	Battery positive voltage

If circuit is not as specified, inspect power source or wire harness.