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Home >> Mercedes Benz >> 1998 >> SL500 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Pneumatically Controlled Systems >> System Tests >> Pneumatic System Equipment (PSE) >> Test 7: Trunk lid Switch Circuit

Test 7: Trunk lid Switch Circuit

  1. On CL500, S320, S420 and S500, go to next step. On SL500, go to step 3).
  2. Measure voltage between terminals No. 7 and 18 at breakout box. When trunk lid is open, battery voltage should exist. When trunk lid is closed, less than one volt should exist. If voltage is as specified, trunk lid switch circuit is okay at this time. If voltage is not as specified, check wiring. See WIRING DIAGRAMS . If wiring is okay, replace trunk lid pin switch.
  3. Measure voltage between positive battery voltage and terminal No. 61 at breakout box. When trunk lid is open, battery voltage should exist. When trunk lid is closed, less than one volt should exist. If voltage is as specified, trunk lid switch circuit is okay at this time. If voltage is not as specified, check wiring. See WIRING DIAGRAMS . If wiring is okay, replace trunk lid pin switch.
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