Lighting System: Inspection

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

HEADLAMP DIMMER SWITCH ASSY

Inspect light control switch.

Measure the resistance according to the value(s) in the table below.

Standard:

LIGHT CONTROL SWITCH RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
-	OFF	10 kΩ or higher
12 - 18	TAIL	Below 1 Ω
12 - 18 - 20	HEAD	Below 1 Ω
12 - 19	AUTO	Below 1 Ω

Fig 1: Identifying C10 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Inspect headlight dimmer switch.

Measure the resistance according to the value(s) in the table below.

Standard:

HEADLIGHT DIMMER SWITCH RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
12 - 17	FLASH	Below 1 Ω
12 - 16	LOW BEAM	Below 1 Ω
11 - 12	HI BEAM	Below 1 Ω

Inspect turn signal switch.

Measure the resistance according to the value(s) in the table below.

Standard:

TURN SIGNAL SWITCH RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
12 - 13	Right turn	Below 1 Ω
-	Neutral	10 kΩ or higher
12 - 15	Left turn	Below 1 Ω

Inspect front fog light switch.

Measure the resistance according to the value(s) in the table below.

Standard:

FRONT FOG LIGHT SWITCH RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
-	OFF	10 kΩ or higher
3 - 4	Fog lamp switch ON	Below 1 Ω

CENTER CLUSTER INTEGRATION SWITCH ASSY (W/O LEXUS NAVIGATION SYSTEM)

Inspect hazard warning signal switch assy operation.

Measure the voltage according to the value(s) in the table below.

Standard:

HAZARD WARNING SIGNAL SWITCH VOLTAGE SPECIFICATIONS

Condition	Tester connection	Specified condition
OFF	7 - 11	Below 1 V
ON	7 - 11	10 to 14 V

Fig 2: Identifying C4 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

MULTI-DISPLAY ASSY (W/LEXUS NAVIGATION SYSTEM)

Inspect hazard warning signal switch assy operation.

Measure the resistance according to the value(s) in the table below.

Standard:

HAZARD WARNING SIGNAL SWITCH RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
M5-12 - M6-6	OFF	10 kΩ or higher
M5-12 - M6-6	ON	Below 1 Ω
M6-7 - M6-8	Illumination circuit	Below 1 Ω

Fig 3: Identifying M5 And M6 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Inspect illumination operation.
1. Connect the (+) lead from the battery to the terminal M6-8 and the (-) lead to terminal M6-7, then check that the illumination comes on.
Standard:

Comes on

FRONT DOOR COURTESY LAMP SWITCH ASSY

Measure the resistance according to the value(s) in the table below.

Standard:

FRONT DOOR COURTESY LAMP SWITCH RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON (When shaft is pressed)	10 kΩ or higher
OFF (When shaft is not pressed)	Below 1 Ω

REAR DOOR COURTESY LAMP SWITCH ASSY

Measure the resistance according to the value(s) in the table below.

Standard:

REAR DOOR COURTESY LAMP SWITCH RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON (When shaft is pressed)	10 kΩ or higher
OFF (When shaft is not pressed)	Below 1 Ω

BACK DOOR LOCK ASSY (W/O POWER BACK DOOR)

Check the courtesy lamp switch.

Measure the resistance according to the value(s) in the table below.

Standard:

RESISTANCE SPECIFICATIONS

Condition	Tester connection	Specified resistance
1 - 2	Back door is closed	10 kΩ or higher
1 - 2	Back door is opened	Below 1 Ω

Fig 4: Identifying B12 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

BACK DOOR LOCK ASSY (W/POWER BACK DOOR)

Check the courtesy lamp switch.

Measure the resistance according to the value(s) in the table below.

Standard:

RESISTANCE SPECIFICATIONS

Tester connection	Condition	Specified resistance
1 - 6	Back door is closed	10 kΩ or higher
1 - 6	Back door is opened	Below 1 Ω

Fig 5: Identifying B11 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

FOG LAMP RELAY

Measure the resistance according to the value(s) in the table below.

Standard:

FOG LAMP RELAY RESISTANCE SPECIFICATIONS

Tester connection	Condition	Specified resistance
3 - 5	Always	10 kΩ or higher
3 - 5	Apply B+ between the terminal 1 and 2	Below 1 Ω

Fig 6: Inspecting Fog Lamp Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TAIL LAMP RELAY

Measure the resistance according to the value(s) in the table below.

Standard:

TAIL LAMP RELAY RESISTANCE SPECIFICATIONS

Tester connection	Condition	Specified resistance
3 - 5	Always	10 kΩ or higher
3 - 5	Apply B+ between the terminal 1 and 2	Below 1 Ω

Fig 7: Inspecting Tail Lamp Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

BRAKE RELAY

Measure the resistance according to the value(s) in the table below.

Standard:

BRAKE RELAY RESISTANCE SPECIFICATIONS

Tester connection	Condition	Specified resistance
3 - 4	Always	Below 1 Ω
3 - 4	Apply B+ between the terminal 1 and 2	10 kΩ or higher
3 - 5	Apply B+ between the terminal 1 and 2	Below 1 Ω

Fig 8: Inspecting BRAKE Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TRANSPONDER KEY AMPLIFIER
1. Inspect key cylinder operation.
  1. Connect the (+) lead to the terminal 2 and the (-) lead to the terminal 6, and check that the indicator light comes on.
  Standard:
  
  Comes on
  
  Fig 9: Identifying T8 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

MAP LAMP ASSY

Inspect map lamp assy in the overhead J/B.

Measure the resistance according to the value(s) in the table below.

Standard:

MAP LAMP ASSY RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
-	OFF	10 kΩ or higher
6 - 17	DOOR	Continuity
5 - 17	ON	Continuity

Fig 10: Identifying O2 Connector Terminals

ROOM LAMP ASSY NO. 1

Measure the resistance according to the value(s) in the table below.

Standard:

ROOM LAMP ASSY NO. 1 RESISTANCE SPECIFICATIONS

Tester connection	Switch operation	Specified resistance
-	OFF	10 kΩ or higher
2 - 3	DOOR	Continuity
1 - 3	ON	Continuity

Fig 11: Identifying F14 Connector Terminals

ROOM LAMP ASSY NO. 2

Measure the resistance according to the value(s) in the table below.

Standard:

ROOM LAMP ASSY NO. 2 RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON	Continuity
OFF	10 kΩ or higher

GLOVE BOX LAMP ASSY

Measure the resistance according to the value(s) in the table below.

Standard:

GLOVE BOX LAMP ASSY RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON (When shaft is pressed)	10 kΩ or higher
OFF (When shaft is not pressed)	Continuity

LH VISOR ASSY

Measure the resistance according to the value(s) in the table below.

Standard:

LH VISOR ASSY RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON (Opened)	Continuity
OFF (Closed)	10 kΩ or higher

RH VISOR ASSY

Measure the resistance according to the value(s) in the table below.

Standard:

RH VISOR ASSY RESISTANCE SPECIFICATIONS

Switch operation	Specified resistance
ON (Opened)	Continuity
OFF (Closed)	10 kΩ or higher

INTERIOR ILLUMINATION LAMP ASSY NO. 1
1. Inspect step light.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 12: Identifying Interior Illumination Lamp Assy No. 1 Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INTERIOR ILLUMINATION LAMP ASSY NO. 1 RH
1. Inspect step light.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 13: Identifying Interior Illumination Lamp Assy No. 1 Rh Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CONSOLE BOX ILLUMINATION LAMP ASSY
1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 14: Identifying Console Box Illumination Lamp Assy Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REAR CONSOLE BOX HOLDER CUP
1. Inspect cup holder illumination.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 15: Identifying Rear Console Box Holder Cup Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
FRONT DOOR TRIM BOARD SUB-ASSY LH
1. Inspect door handle illumination.
  1. Connect the (+) lead from the battery to the terminal 1 and the (-) lead to terminal 2, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 16: Identifying Front Door Trim Board Sub-Assy LH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
FRONT DOOR TRIM BOARD SUB-ASSY RH
1. Inspect door handle illumination.
  1. Connect the (+) lead from the battery to the terminal 1 and the (-) lead to terminal 2, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 17: Identifying Front Door Trim Board Sub-Assy RH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REAR DOOR TRIM BOARD SUB-ASSY LH
1. Inspect door handle illumination.
  1. Connect the (+) lead from the battery to the terminal 1 and the (-) lead to terminal 2, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 18: Identifying Rear Door Trim Board Sub-Assy LH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REAR DOOR TRIM BOARD SUB-ASSY RH
1. Inspect door handle illumination.
  1. Connect the (+) lead from the battery to the terminal 1 and the (-) lead to terminal 2, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 19: Identifying Rear Door Trim Board Sub-Assy RH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
FRONT DOOR SCUFF PLATE LH
1. Inspect scuff plate illumination.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 20: Identifying Front Door Scuff Plate LH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
FRONT DOOR SCUFF PLATE RH
1. Inspect scuff plate illumination.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 21: Identifying Front Door Scuff Plate RH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REAR DOOR SCUFF PLATE LH
1. Inspect scuff plate illumination.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 22: Identifying Rear Door Scuff Plate LH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REAR DOOR SCUFF PLATE RH
1. Inspect scuff plate illumination.
  1. Connect the (+) lead from the battery to the terminal 2 and the (-) lead to terminal 1, then check that the illumination comes on.
  Standard:
  
  Comes on
  
  Fig 23: Identifying Rear Door Scuff Plate RH Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002