Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
There is a Factory Service Bulletin for the following Subaru models:
2005-2008 Subaru Legacy
2005-2008 Subaru Outback
2005-2008 Subaru Impreza
2005-2008 Subaru Forester
Subaru Factory Service Bulletin OBDII Code P0852
The cost to diagnose the P0852 Subaru code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
Automatic Transmission: The Park/Neutral Safety Switch is in line with the engine starter circuit and informs the ECM whether the vehicle is in the park or neutral position. If the Park/Neutral Safety Switch is in any other position, the engine will not start. The Diagnostic Trouble Code (DTC) sets when the Engine Control Module (ECM) detects a high voltage signal in the Park/Neutral Safety Switch circuit.
Manual Transmission: The Neutral Safety Switch is in line with the engine starter circuit and informs the ECM whether the vehicle is in the neutral position or not. If the neutral safety switch is not engaged, the engine will not start. The DTC sets when the ECM detects a high voltage signal in the Neutral Safety Switch circuit.
Need more information on how to fix the P0852 Subaru code? Get Access to Factory Service Manuals
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