P0852 OBD-II: Park/Neutral Switch Input Circuit High

P0852 Severity

Urgent

Should you fix P0852 yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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What causes OBD-II fault code P0852?

The engine computer (PCM) needs to know when the transmission is in Park/Neutral, as this is required before the vehicle can safely be started. The PCM depends on the park/neutral safety switch to communicate when the transmission is in Park/Neutral. If the Park/Neutral Safety Switch fails to operate properly, code P0852 will be set. The engine may be disabled from starting.

OBD II Fault Code

OBD II P0852

OBD-II Code Engine may not start is defined as a Park/Neutral Switch Input Circuit High

Engine may not start Symptoms

Engine may not start

Common Problems That Trigger the P0852 Code

Neutral safety switch failure
Powertrain Control Module (PCM) failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P0852

OBD-II Code Engine may not start is defined as a Park/Neutral Switch Input Circuit High

Engine may not start Symptoms

Engine may not start

Common Problems That Trigger the P0852 Code

Neutral safety switch failure
Powertrain Control Module (PCM) failure
Wiring issue

P0852 OBD-II: Park/Neutral Switch Input Circuit High

Should you fix P0852 yourself?

What causes OBD-II fault code P0852?

Need a P0852 diagnosis? Trust our experts.

OBD II Fault Code

Engine may not start Symptoms

Common Problems That Trigger the P0852 Code

OBD Code Resources

Ask our experts about P0852.

Other OBD-II Codes

OBD II Fault Code

Engine may not start Symptoms

Common Problems That Trigger the P0852 Code