Multiple sensor codes P0036, P2096, P0140, P0138, P0455, C0300, P0500 and P0362?

BGODLY

MEMBER
2014 HYUNDAI SONATA
2.4L
4 CYL
2WD
AUTOMATIC
145,000 MILES

I have a 2014 Hyundai Sonata that has multiple sensor codes at the same time and all at once. Speed sensor or rear output shaft sensor rather, the downstream oxygen sensor, and knock sensor all have DTC codes. P0036, p2096, p0140, p0138, P0455, c0300, p0500 and I believe p0362 was also on there for the knock sensor. Is there a circuit that controls these sensors all together maybe under one fuse or one ground? Or is it more likely that all these happen to fail at the same time? Please help I need to get this fixed today so my son can take his driver's test tomorrow. Thank you so much in advance.

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
43,070 POSTS

If all of these codes came up at once it is either a bad ground on the engine compartment (left side) or the sensor 1 fuse 15 amp has gone out. Here is a guide to help you test the fuse with the fuse location in the images below.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please check these fuses and get back to me. If the fuses are okay, then I would send the PCM for testing here is the location for that as well. If it is bad, then they can send you a rebuilt unit that is preprogrammed. Check out the images (below). Let us know how it goes.

Images (Click to make bigger)

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Tuesday, February 27th, 2024 AT 10:00 AM

BGODLY

MEMBER
2 POSTS

Thanks, Ken, for the diagrams and the information. I had previously checked the fuses you had listed and had tested the ground at the battery (disconnected) to the block, body and frame for continuity. Ultimately, I'm not sure what caused the initial reading of all the fault codes that I had listed, but I ended up purchasing another OBD II reader and performed a negative disconnect reset to the PCM prior to my next reading. This time the only codes that came up (after a short drive) were for the downstream O2 sensor. I replaced that and all is well for now. Thanks again for the assistance.

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Friday, March 1st, 2024 AT 7:41 PM

KEN L