Lighting System: Inspection

1. Inspect the light control switch continuity.
   1. Check that there is continuity between terminals at each switch position as shown in HEADLAMP DIMMER SWITCH  .
   Fig 1: Identifying Headlamp Dimmer Switch Assy

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   HEADLAMP DIMMER SWITCH (1 OF 2)
   
   

   Switch operation	Tester connection	Specified condition
   OFF	-	No continuity
   TAIL	14 - 16	Continuity
   HEAD	13 - 16 - 14	Continuity
   AUTO	16 - 12	Continuity

2. Inspect the headlamp dimmer switch continuity.
   1. Check that there is continuity between terminals at each switch position as shown in HEADLAMP DIMMER SWITCH (2 OF 2)  .
   HEADLAMP DIMMER SWITCH (2 OF 2)
   
   

   Switch operation	Tester connection	Specified condition
   FLASH	7 - 8 - 16	Continuity
   LOW BEAM	16 - 17	Continuity
   HI BEAM	7 - 16	Continuity

3. Inspect the turn signal switch continuity.
   1. Check that there is continuity between terminals at each switch position as shown in TURN SIGNAL SWITCH  .
   TURN SIGNAL SWITCH
   
   

   Switch operation	Tester connection	Specified condition
   Right turn	2 - 3	Continuity
   Neutral	-	No continuity
   Left turn	1 - 2	Continuity

4. Inspect the front fog lamp switch continuity.
   1. Check that there is continuity between terminals at each switch position as shown in FOG LAMP SWITCH  .
   FOG LAMP SWITCH
   
   

   Switch operation	Tester connection	Specified condition
   OFF	-	No continuity
   ON	10 - 11	Continuity

1. Check that there is continuity between terminals at each switch position as shown in HAZARD WARNING SIGNAL SWITCH  .
   Fig 2: Identifying Hazard Warning Signal Switch Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   HAZARD WARNING SIGNAL SWITCH
   
   

   Switch operation	Tester connection	Specified condition
   OFF	2 - 3	No continuity
   ON	2 - 3	Continuity
   Illumination circuit	4 - 5	Continuity

2. Inspect illumination operation.
   1. Connect the battery positive (+) lead to terminal 4 and the battery negative (-) lead to terminal 5, then check that the illumination lights up.

1. Inspect the relay continuity.

Fig 3: Identifying Fog Lamp Relay

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1. Inspect the map lamp continuity.
   1. Check that there is continuity between terminals 1 and 5 when the switch is operated.

Standard: 

• ON: Continuity 
• OFF: No continuity 

Fig 4: Inspecting Map Lam Continuity

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1. Inspect the room lamp assy No. 1 continuity.
   1. Check that there is continuity between terminals at each switch position as shown in ROOM LAMP ASSY NO. 1  .

Fig 5: Inspecting Room Lamp Assy No. 1 Continuity

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Standard: 

1. Inspect the room lamp assy No. 2 continuity.
   1. Check that there is continuity between terminals at each switch position as shown in ROOM LAMP ASSY NO. 2  .

Fig 6: Inspecting Room Lamp Assy No. 2 Continuity

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Standard: 

1. Inspect the courtesy lamp assy continuity.
   1. Check that there is continuity between terminals when the switch is operated.

Standard: 

• ON (When shaft is pressed): No continuity 
• OFF (When shaft is not pressed): Continuity 

1. Inspect the glove box lamp assy continuity.
   1. Check that there is continuity between terminals when the switch is operated.

Standard: 

ON (When shaft is pressed): No continuity 

OFF (When shaft is not pressed): Continuity 

1. Inspect the side step lamp assy.
   1. Check that there is continuity between terminals when the courtesy lamp switch is operated.

   Standard: 

   • ON: Continuity 
   • OFF: No Continuity 
2. Inspect the rear wheel lamp assy.
   1. Check that there is continuity between terminals when the courtesy lamp switch is operated.

Standard: 

• ON: Continuity 
• OFF: No continuity 

1. Inspect relay continuity.

Fig 7: Identifying Tail Lamp Relay

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Standard: 

1. Inspect relay continuity.

Fig 8: Identifying Headlamp Relay

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Standard: 

1. Check that the continuity between terminals at each switch position, as shown in the chart.

Fig 9: Identifying Stop Lamp Switch Assy

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Standard: