Good evening,
While driving home, I had to limp home in my 2007 TL Type-S due to the DTC P0335 that illuminated. The other DTCs intermittently also illuminated, but then went away. I’ve included a photo below. I connected my scan tool and scanned for any pending or hard codes, and the only DTC that remained was the P0335. But I was wondering if there was a correlation with the other DTCs? Would a poor ground affect the rest as well? If memory serves me correctly, these systems share the “G101” ground, but I am unsure where it is located. My scan tool does not offer the abilities to read live data on OEM sensors, only the basics. Besides replacing the crankshaft sensor with an OEM part and OEM sub-harness, how else could I further diagnose if in fact the sensor has failed?

 

There's a lot of stuff on G101 and MAP isn't one of them. There's some diagrams that might help:








Might be not the case, but I've had a lot of rodent damaged cables in recent weeks. A lot of weird intermittent issues caused by partially chewed wires. MAP is very close to that ground.

And this one is quite big - download or open in new tab.


You can also grab service manual from https://acurazine.com/forums/3g-tl-p.../#post16101585

 

Good evening,
Thank you for all of this information. It seems MAP is not one of them, but it does seem there’s a ton of modules that ground to G101. I’ll need to follow up later this week whenever I have time to diagnose the concern before throwing parts at it.

 

Good evening,
Sorry for the late update, but I I determined that the cause was due to the G101 ground distribution spot. The area was cleaned, sanded down, and inspected the wiring. I ended up applying some di-electric grease around the outer portion of the ground clamps and around the bolt and so far the DTC has not returned. I initially thought the CKP sensor had failed because of no signal, but after looking at this, it helped so much!