EX35 P0850 Park/Neutral Switch Code Preventing Cruise from Working?

Discussion of Infiniti's amazing (and underrated) sport-luxury crossovers, the EX35 and EX37. For 2014, the EX series will be renamed QX50, in line with Ininfiit's new naming conventions.
Posts: 2
Joined: Mon Jun 04, 2018 6:14 am
Car: 2008 EX35

EX35 P0850 Park/Neutral Switch Code Preventing Cruise from Working?

Postby RhinestoneChow » Sun Aug 12, 2018 8:52 am

Hi guys,

I recently acquired this car off of my parents in April and about the only issue I have with the car is that there is no working cruise control. Infiniti diagnosed years ago that the BCM needed to be replaced while my parents owned the vehicle, that was replaced a couple years ago and still didn't solve the issue of the cruise control not working.

The car tends to have the P0850 code triggered when I go at speeds above 80 km/h, however the cruise still won't work if the code is cleared. I have had a higher end code scanner to monitor everything the car was doing and it can definitely detect that the cruise is on but the second I tried to set a speed it will notice it turns off immediately. I have already replaced the park/neutral switch at this point and I'm out of tricks on what to do at this point.

Any further help or suggestions would be much appreciated!

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