Test 39: Switch Illumination Intensity Circuit 58D

NOTE: This procedure applies to CLK320 convertible models only.

Connect Hand-Held Tester (HHT) to Data Link Connector (DLC) located in engine bay. Monitor lower control panel control module readings. Turn ignition on. Turn lights on. 0-100% should be displayed on HHT based on dimming of interior lights. If readings are not as described, check lower control panel control module. See COMPONENT LOCATIONS .