caffaro
02-19-2022, 05:09 PM
Hi everyone. After leaving my car parked outside my house while out of the country for two months, I found my poor Yaris with a few problems. Namely:
1) The speedometer does not work
2) The P/S warning light is on and the EPS does not appear to be working (steering wheel is very stiff, difficult to turn at low speeds)
3) Malfunction indicator lamp showing
I tested my battery and discovered it was in low health, so went ahead and replaced it. This took care of the malfunction warning, but not the other problems.
As I go to double check the battery is secured, I notice a glaring issue --- a cut wire (hopefully chewed by a rodent and not cut by a person).
https://imgur.com/a/6ejrett
I have a decent knowledge of engines and DIY maintenance, but am completely ignorant when it comes to electronics and wiring. I also have no clue what the cylindrical component is that the wire is leading to.
So my questions are:
1) What is this wire? Is it possible that this wire is somehow connecting the VSS to the ECU? I kind of doubt it, since it isn't feeding directly into the ECU, but I have no idea where the VSS is actually located.
2) I'm not entirely clear how the EPS functions, but is it possible that a bad VSS would be causing the EPS to shut down and/or go into failsafe mode?
I am really, really hoping that fixing this snapped wire will resolve my issues. I still don't have a trusted mechanic in this area. Dude who did some (mediocre) work for me a few years ago told me he wouldn't touch it and suggested I take it to the dealership. I've got an appointment tomorrow, but I'm a bit terrified they're going to tell me something crazy, like that they want to replace the entire harness.
Anyway, any thoughts or info is very appreciated. Cheers!
1) The speedometer does not work
2) The P/S warning light is on and the EPS does not appear to be working (steering wheel is very stiff, difficult to turn at low speeds)
3) Malfunction indicator lamp showing
I tested my battery and discovered it was in low health, so went ahead and replaced it. This took care of the malfunction warning, but not the other problems.
As I go to double check the battery is secured, I notice a glaring issue --- a cut wire (hopefully chewed by a rodent and not cut by a person).
https://imgur.com/a/6ejrett
I have a decent knowledge of engines and DIY maintenance, but am completely ignorant when it comes to electronics and wiring. I also have no clue what the cylindrical component is that the wire is leading to.
So my questions are:
1) What is this wire? Is it possible that this wire is somehow connecting the VSS to the ECU? I kind of doubt it, since it isn't feeding directly into the ECU, but I have no idea where the VSS is actually located.
2) I'm not entirely clear how the EPS functions, but is it possible that a bad VSS would be causing the EPS to shut down and/or go into failsafe mode?
I am really, really hoping that fixing this snapped wire will resolve my issues. I still don't have a trusted mechanic in this area. Dude who did some (mediocre) work for me a few years ago told me he wouldn't touch it and suggested I take it to the dealership. I've got an appointment tomorrow, but I'm a bit terrified they're going to tell me something crazy, like that they want to replace the entire harness.
Anyway, any thoughts or info is very appreciated. Cheers!