Lexus IS250 IS220d GSE20 ALE20 - LIGHTING

REAR ROOM LIGHT ASSEMBLY - INSPECTION

1. INSPECT REAR ROOM LIGHT (PERSONAL LIGHT)
Rear Room Light Assembly - Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Disconnect the R8 connector from the rear room light.

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

  • Standard resistance:
  • Tester ConnectionConditionSpecified Condition
    R8-3 (RGND) - Body groundAlwaysBelow 1 Ω

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

  • Standard voltage:
  • Tester ConnectionConditionSpecified Condition
    R8-1 (RRMP) - Body groundAlways10 to 14 V

If the result is not as specified, repair or replace the wire harness or connector.


Rear Room Light Assembly - Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Connect the (+) lead from the battery to terminal 1 and the (-) lead to terminal 3.

Check that the personal light comes on.

  • OK:
  • ConditionSpecified Condition
    LH side personal light ONLH side personal light comes ON
    LH side personal light OFFLH side personal light does not come ON
    RH side personal light ONRH side personal light comes ON
    RH side personal light OFFRH side personal light does not come ON

If the result is not as specified, replace the rear room light assembly.


2. INSPECT REAR ROOM LIGHT (DOME LIGHT)
Rear Room Light Assembly - Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Disconnect the R8 connector from the rear room light.

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

  • Standard resistance:
  • Tester ConnectionConditionSpecified Condition
    R8-1 (RRMP) - Body groundAlways10 to 14 V

If the result is not as specified, repair or replace the wire harness or connector.


Rear Room Light Assembly - Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Connect the (+) lead from the battery to terminal 2 and the (-) lead to terminal 4.

Check that the rear interior light comes on.

  • OK:
  • Comes on

If the result is not as specified, replace the rear room light assembly.


Connect the (+) lead from the battery to terminal 2 and the (-) lead to terminal 5.

Check that the rear seat light comes on.

  • OK:
  • Comes on

If the result is not as specified, replace the rear room light assembly.