Codes p1718 and p0817, check engine light will not turn on at all

2005 SUBARU LEGACY
149,461 MILES • 2.5L • 4 CYL • TURBO • 4WD • AUTOMATIC
Avatar
TURBOXERSUBIE
  • MEMBER
  • 3 POSTS
The car turned off on me while driving, I opened the hood and the MAF sensor wire melted on turbo. Now I'm getting codes p1718 and p0817. I can't figure out what it is.
Apr 12, 2022 at 10:54 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Are you having any starting issues after the repairs? I ask because the P0817 is related to the park/neutral switch not working properly. Take a look at pic 1.

On the other hand, the P1718 is also related but in a different way. Check around the transmission to locate the park neutral switch. See if there is anything damaged there as well. See pic 2.

Let me know what you find.

Take care,

Joe

See pics below.

Images (Click to enlarge)
Attached Media
Attached Media
Apr 12, 2022 at 9:20 PM
Advertisement
Avatar
TURBOXERSUBIE
  • MEMBER
  • 3 POSTS
The car will not crank and check engine light or cruise control light doesn't come on when key is turned to on and before it would turn on and also my awd light is on.
Apr 16, 2022 at 10:15 AM
Avatar
TURBOXERSUBIE
  • MEMBER
  • 3 POSTS
Where is the park neutral safety switch located?
Apr 16, 2022 at 10:16 AM
Avatar
JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
The switch is on the right side of the transmission. See pic 1 below. It is referred to as an inhibitor switch. Its purpose is to prevent the vehicle from starting when in gear for safety reasons.

You indicated the CC and check engine light don't turn on when the key is turned to the run position. Are there any other electrical concerns you have noticed? The idea that the CEL doesn't turn on is a concern.

Let me know. Also, when you shift through the gears, make sure the gear indicator is accurate.

Let me know.

Joe
Image (Click to enlarge)
Attached Media
Apr 16, 2022 at 5:49 PM