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Porsches brown wires are typically grounds. Unplug harness and use a meter to check wires for voltage.
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Sergio
The GT Lid Whisperer
PCA 43yrs - National DE Instructor / Ex-RGruppe #197
'19 718 Cayman S (9th Porsche/1st w/ PDK)
'23 Subaru Outback Turbo XT (Porsche support vehicle)
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