Lexus IS250 IS220d GSE20 ALE20 - LIGHTING

REAR COMBINATION LIGHT ASSEMBLY - ON-VEHICLE INSPECTION

1. INSPECT REAR OUTER COMBINATION LIGHT ASSEMBLY
Rear Combination Light Assembly - On-Vehicle Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Disconnect the connector from the rear outer combination light.

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

  • Standard voltage:
  • LH Side:
  • Tester ConnectionConditionSpecified Condition
    Q50-2 (STP) - Q50-6 (E)Brake pedal releasedBelow 1 V
    Q50-2 (STP) - Q50-6 (E)Brake pedal depressed10 to 14 V
    Q50-3 (TL) - Q50-6 (E)Dimmer switch ON10 to 14 V
    Q50-3 (TL) - Q50-6 (E)Dimmer switch OFFBelow 1 V
  • RH Side:
  • Tester ConnectionConditionSpecified Condition
    Q51-2 (STP) - Q51-6 (E)Brake pedal releasedBelow 1 V
    Q51-2 (STP) - Q51-6 (E)Brake pedal depressed10 to 14 V
    Q51-3 (TL) - Q51-6 (E)Dimmer switch ON10 to 14 V
    Q51-3 (TL) - Q51-6 (E)Dimmer switch OFFBelow 1 V

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


2. INSPECT REAR INNER COMBINATION LIGHT ASSEMBLY
Rear Combination Light Assembly - On-Vehicle Inspection. LIGHTING. Lexus IS250 IS220d GSE20 ALE20

Disconnect the connector from the rear inner combination light.

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

  • Standard voltage:
  • LH Side:
  • Tester ConnectionConditionSpecified Condition
    Q40-1 - Q40-3Dimmer switch ON10 to 14 V
    Q40-1 - Q40-3Dimmer switch OFFBelow 1 V
  • RH Side:
  • Tester ConnectionConditionSpecified Condition
    Q46-1 - Q46-3Dimmer switch ON10 to 14 V
    Q46-1 - Q46-3Dimmer switch OFFBelow 1 V

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