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Home >> Mercedes Benz >> 1999 >> C43 >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Power Mirror/Steering Column Adjustment Systems - C230, C280, CLK320, CLK 430, E300, E320 & E430) >> System Tests >> Test 3: Driver's Side Mirror Potentiometer Resistance

Test 3: Driver's Side Mirror Potentiometer Resistance

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  1. Disconnect driver's side mirror harness connector No. 2. Measure resistance between terminals No. 1 and 4 at driver's side mirror. When mirror is moved manually, resistance should be 700-1500 ohms. If resistance is as specified, go to next step. If resistance is not as specified, replace driver's side mirror assembly.
  2. Measure resistance between terminals No. 2 and 4 at driver's side mirror. When mirror is moved manually, resistance should be 300-1300 ohms. If resistance is as specified, driver's side mirror potentiometer resistance is okay at this time. If resistance is not as specified, replace driver's side mirror assembly.
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