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Home >> Jeep >> 2002 >> Wrangler Sahara, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1899: P/N Switch Performance >> Monitored & Set Conditions
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Monitored & Set Conditions

Circuit is monitored when transmission is in Park, Neutral or Drive and not in limp-in mode. DTC will set if PCM detects an incorrect Park/Neutral (P/N) switch state for a given mode of vehicle operation.

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