WARNING: This page is about a different car, the 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

MAP LAMP ASSY

Inspect map light assy continuity.

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

CONTINUITY CHECK BETWEEN TERMINAL CHARTS

Switch Operation	Tester Connection	Specified Condition
OFF	-	No continuity
DOOR	1(B) - 3(CTY)	Continuity
ON	1(B) - 2(E)	Continuity

Fig 1: Identifying Map Lamp Assembly Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

VANITY LAMP ASSY
1. Inspect vanity light continuity.
  1. Check that the continuity exists between terminals 1 and 2, when light is operated.
    Standard:
    
    OFF (closed): No continuity
    
    ON (opened): Continuity
GLOVE BOX LAMP SWITCH
1. Inspect glove box switch continuity.
  1. Check that the continuity exists between terminals 1 and 2, when switch is operated.
    Standard:
    
    ON (when shaft is pressed): No continuity
GLOVE BOX LAMP ASSY
1. Check that the continuity exists between terminal.
  Standard: Continuity exists
RETAINER FRONT DOOR SCUFF PLATE
1. Check that the continuity exists between terminal.
  Standard: Continuity exists

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Section 463 (Lighting System): Inspection

Use the Manual With the Right Hardware

When to See a Mechanic