Section 484 (Stop Light System): Inspection

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT STOP LIGHT SWITCH CONTINUITY

SPECIFIED CONDITION TABLE

Switch position	Tester connection	Specified condition
Switch pin free (Pedal depressed)	1 - 2	Continuity
Switch pin pushed in (Pedal released)	-	No continuity
Switch pin free (Pedal depressed)	-	No continuity
Switch pin pushed in (Pedal released)	3 - 4	Continuity

If continuity is not as specified, replace the switch.

Fig 1: Identifying Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT STOP LIGHT SWITCH CIRCUIT

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

Fig 2: Identifying Harness Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SPECIFIED CONDITION TABLE

Tester connection	Condition	Specified condition
2 - Ground	Always	Battery positive voltage

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

w/o REAR SPOILER: INSPECT HI-MOUNTED STOP LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

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

Fig 3: Identifying Harness Connector Terminal (W/O Rear Spoiler)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

w/o REAR SPOILER: INSPECT HI-MOUNTED STOP LIGHT CIRCUIT

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

Fig 4: Identifying Harness Connector Terminal (W\O Rear Spoiler)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SPECIFIED CONDITION TABLE

Tester connection	Condition	Specified condition
2 - Ground	Always	Continuity

If circuit is not as specified, inspect the wire harness.

w/ REAR SPOILER: INSPECT HI-MOUNTED STOP LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between terminals.

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

Fig 5: Identifying Harness Connector Terminal (W/ Rear Spoiler)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

w/ REAR SPOILER: INSPECT HI-MOUNTED STOP LIGHT CIRCUIT

Disconnect the connector from the light and inspect the connector on the wire harness side.

Fig 6: Identifying Harness Connector Terminal (W/ Rear Spoiler)

SPECIFIED CONDITION TABLE

Tester connection	Condition	Specified condition
2 - Ground	Always	Continuity

If circuit is not as specified, inspect the wire harness.