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Home >> Buick >> 1995 >> Park Avenue Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM/Pcm Code Charts >> Code P1520, Park/Neutral Switch >> Set Condition

Set Condition

Code will set if: switch indicates and open for 3 consecutive start-up cycles or if input circuit is grounded, Code P0703 is not set, transaxle is in 3rd or 4th gear, TCC is locked and conditions exist for one second.