Operation CHARM
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LS 400 V8-4.0L (1UZ-FE)
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Relays and Modules
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Relays and Modules - Instrument Panel
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Panel Illumination Control Module
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Description and Operation
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Panel Illumination Control Module: Description and Operation
CIRCUIT DESCRIPTION
Receiving the courtesy signal from either of the door ECU, the Body ECU will make the interior light, ignition light, and foot light come on.