Rear Room Light Assembly: Inspection

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT REAR ROOM LIGHT ASSEMBLY

Inspection the rear room light RH.

Apply battery voltage to the connector, and check the LED illumination condition.

MEASUREMENT CONDITION SPECIFIED CONDITION REFERENCE CHART

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 10 (RRMP) Battery positive (-) → Terminal 3 (RGND)	Light illuminates

Fig 1: Identifying Rear Room Light Assembly RH Connector Terminals

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Inspection the rear room light LH.

Apply battery voltage to the connector, and check the LED illumination condition.

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 2 (RLMP) Battery positive (-) → Terminal 3 (RGND)	Light illuminates

Fig 2: Identifying Rear Room Light Assembly LH Connector Terminals

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester Connection	Switch Condition	Specified Condition
5 (RRSW) - 3 (RGND)	Switch on both sides OFF	10 kΩ or higher
4 (RLSW) - 3 (RGND)	Switch on both sides OFF	10 kΩ or higher
5 (RRSW) - 3 (RGND)	Rear right side switch ON	Below 1 Ω
4 (RLSW) - 3 (RGND)	Rear left side switch ON	Below 1 Ω

If the result is not as specified, there may be a malfunction on the light

Fig 3: Identifying Rear Room Light Assembly Connector Terminals