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Home >> Mercedes Benz >> 2002 >> CLK55 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Keyless Entry System - C230, C280, CLK320, E300, E320, E430, E500, Cl500 & Cl600) >> System Tests >> Test 3: Left Front Door Lock Switch (Lock Nut Switch Circuit)

Test 3: Left Front Door Lock Switch (Lock Nut Switch Circuit)

WARNING: This page does not describe the selected car, but rather 29 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 front door lock switch connector. Measure resistance between terminals No. 1 and 2 at driver's side door control module connector No. 2, located inside left front door. With left front door lock switch in rest position, resistance should be more than 20 k/ohms. With door lock switch in unlocked position, resistance should be less than one ohm.
  2. Measure resistance between terminals No. 1 and 3 at driver's side door control module connector No. 2. With left front door lock switch in rest position, resistance should be more than 20 k/ohms. With door lock switch in locked position, resistance should be less than one ohm. If resistance is as specified, left front door lock switch is okay at this time. If resistance is not as specified, repair wiring. See WIRING DIAGRAMS . Check left front door lock switch.
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