P1815 – NISSAN

Code : P1815
Description : P1815 NISSAN Manual Mode Switch
Possible causes :
– Faulty Manual Mode Switch (Built into A/T control device)
– Faulty Position Select Switch (Built into A/T control device)
– Manual Mode Switch harness is open or shorted
– Manual Mode Switch circuit poor electrical connection
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

1 thought on “P1815 – NISSAN<br/>”


    I have a 2006 Infiniti G 35 coupe with a P 1815 status current, manual mode works just fine, I’ve cleared the code but it comes right back as status:current as I’m not an old code but present. Not sure where to go from there. I haven’t had to cancel apart or unplugged anything because the manual mode works just fine. It goes through all the gears in the cluster up and down as it should., what’s next? Thanks

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