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Home >> Porsche >> 2000 >> Boxster Base, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> DME 7.2 - 911 CARRERA & BOXSTER >> DTC P0132: Oxygen Sensor Ahead of TWC, Bank 1 -Above Limit >> Diagnosis Procedure >> Check wiring harness

Check wiring harness

  1. Remove oxygen sensor connector 1 ahead of TWC.
  2. Switch on the ignition.
  3. Connect voltmeter at sleeve to pins 3 and 4 of oxygen sensor connector 1 ahead of TWC.

    Display: approx. 450 mV

    If the value is not reached, remove DME control module connector and check wiring for short to B+.

    If no short to B+ can be detected, replace DME control module.

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