2012 chev orlando back up sensors not working

[Squamch]

Friend of ours has a 2012 orlando, its a piece of shit, and she wants to get rid of it, but it has a couple issues.
1- the back up sensors aren't working. Proximity senaors, whatever you want to call em. I had a quick look, fuses are all good, I imagine there's a module somewhere, not that all 4 sensors have shit the bed simultaneously...or does it need all 4 working, for the system to work? I'm sure I can put a multi meter on these and see if they are working...but I can't find what values I'm looking for. Shockingly, the online chevy orlando enthusiast community isn't what it is for many folks.

2- rear hatch doesn't open. It's sensor only, no mechanical means to open it. I didn't have a multimeter with me to test the relay, but I'm betting that's the issue.

Anyone have a source for resistance values on the backup sensors, or where the control module for the system is located?

 

[TrikeKid]

The sensors will all shut off if one fucks up. You don't really test them with a meter beyond checking wiring. I looked through my stuff and I can't get a diagram but my money would be on the sensors themselves.

As far as the hatch goes there is usually a way to manually open it so you can get at the latch. I go right to it with a test light and check power/ground there, fastest way to rule out the rest of the system

 

[Squamch]

The sensors will all shut off if one fucks up. You don't really test them with a meter beyond checking wiring. I looked through my stuff and I can't get a diagram but my money would be on the sensors themselves.

As far as the hatch goes there is usually a way to manually open it so you can get at the latch. I go right to it with a test light and check power/ground there, fastest way to rule out the rest of the system

Damn so the only way to diagnose those sensors is parts changing eh?

I'll see if there is a manual latch inside. There's nothing external.

 

[87manche]

you'd have to get the equivalent of the dealer diag software so you can talk to the module directly.
chances are it already knows which one has failed and has a code and you need to get at it across the can bus directly to ask it.

 

[Will Scarlet]

Not sure if this will help or not, but found these videos that describe testing GM back up sensors:




Hope this help...