The OBD-II code P0850 refers to the Park/Neutral Switch Input Circuit. This code indicates that there is an issue with the circuit responsible for signaling the engine control module (PCM) whether the transmission is in the Park or Neutral positions.
What Does the P0850 Code Mean?
OBD-II Code P0850 is defined as a Park/Neutral Switch Input Circuit issue. The PCM relies on the park/neutral safety switch to determine if the transmission is in Park or Neutral. If the switch fails to function correctly, this code is triggered, and the engine may be prevented from starting.
What Causes the P0850 Code?
Several factors can lead to the P0850 code being set, including:
- Neutral safety switch failure
- Powertrain Control Module (PCM) failure
- Wiring issues in the park/neutral switch circuit
What Are the Symptoms of the P0850 Code?
Common symptoms of the P0850 code include:
- The engine may not start
- Possible dashboard warning lights related to transmission
How Serious Is the P0850 Code?
The P0850 code is considered urgent and serious. Since it affects the ability to start the vehicle, immediate action is necessary. Ignoring this code may lead to further complications or unsafe driving conditions.
How to Diagnose the P0850 Code
To diagnose the P0850 code, mechanics generally follow these steps:
- Use an OBD-II scanner to confirm the P0850 code and check for any other related trouble codes.
- Inspect the wiring and connectors for any visible damage or corrosion.
- Test the neutral safety switch for proper operation.
- Check the PCM for proper functioning.
Common Repairs for the P0850 Code
Common repairs for addressing the P0850 code may include:
- Replacing the neutral safety switch
- Repairing or replacing damaged wiring
- Replacing the Powertrain Control Module (PCM) if necessary
How Much Does It Cost to Fix the P0850 Code?
The cost to fix the P0850 code can vary widely depending on the underlying issue. Typical repair costs can range from $100 to $600, depending on whether you need to replace the neutral safety switch, repair wiring, or replace the PCM.
Can I Fix the P0850 Code Myself?
While some individuals may have the skills to diagnose and fix the P0850 code themselves, it is recommended to seek professional help. Proper diagnosis is crucial, as simply replacing parts without identifying the root cause can lead to unnecessary repairs.
