Multi-code OBD2 diagnosis

Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.

Summary

Overall severity
High
Can I keep driving?
Yes, but with caution
Estimated cost
$20 to $250
Codes analyzed
1 of 1

The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.

Order of inspection

  1. P0852 Park/Neutral Switch Input Circuit High High

    The P0852 code means the signal from the park/neutral position switch is higher than the computer expects. The main effect is that the engine will not start, or idles wrong when you shift into gear. An open circuit or an interrupted ground is the usual cause.

    Step-by-step diagnosis for P0852