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Test 15: Left Rear Power Window Switch

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1999 Mercedes-Benz E430, 1999 Mercedes-Benz E320, 1999 Mercedes-Benz E300, 1999 Mercedes-Benz CLK430, and 1999 Mercedes-Benz CLK320. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect left rear power window motor connector. Turn ignition switch to OFF position. Relay in door control module should be heard engaging. Check resistance between left rear power window switch terminals No. 2 and 7.
  2. Press back of left rear power window switch to first detent. Resistance should be 1240 ohms. Press back of switch past first detent and hold. Resistance should be 300 ohms. Press front of switch to first detent. Resistance should be 510 ohms. Press front of switch past first detent and hold. Resistance should be 660 ohms. If resistance is not as specified, check wiring. See WIRING DIAGRAMS .
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