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Passenger seat sensor, 2008

 
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  • 1 Post By rsrocket1
  • 1 Post By ptcruisersteve
  • 2 Post By denis90

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  #1 (permalink)  
Old 03 May 2018, 08:02 pm
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Join Date: May 2018
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Default Passenger seat sensor, 2008

Hello,

Have faced with a tricky issue of SRS errors when the passenger seat is occupied.

Occasionally, usually when the car is making at least minimal turn to the left or the brake is applied the SRS error bubbles up.

My OBD_II scanner won't show any errors and I have already checked the seat side airbag by using a bypass but that didn't eliminate the thing.

Can you please help - what direction can I dig further?

Have read people say this might be related to the OCM and I'm not sure if I can just switch the seat altogether getting one from a junkyard.
Can I expect the OCM from another car will work in my car?

Or you think it's a wrong direction?

Thank you!
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Old 04 May 2018, 01:43 pm
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Default Re: Passenger seat sensor, 2008

Guys,

any idea if I can just completely replace the seat with the very some one from another car?

I heard SRS module is bound to the VIN number. Is OCM located on the seat bound as well?

Thanks,
Denis
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Old 04 May 2018, 03:52 pm
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Location: Thousand Oaks, CA
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Default Re: Passenger seat sensor, 2008

Check the wires going to the plugs on both seat sensors.

Another member found two contacts had pulled out of the plug going to the seat sensors.

The contacts on the two light blue wires had pulled out not making contact.
SRS light, 2009, bad contacts.jpg
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Old 05 May 2018, 09:02 am
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Location: Sacramento, CA
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Default Re: Passenger seat sensor, 2008

You really need to go to someone who has an OBDII SRS scanner. My problem was similar, but it was the seatbelt receptacle that was intermittent, then bad.

I had to search a number of junkyards to find a Gen2 passenger seatbelt receptacle, then bring a T45 Torx wrench to remove the passenger seat. It's the only way to get to the receptacle between the seat and the center console. I had already pulled the plug on my car and the wires were sticking out so when I plugged in the new receptacle, the "ding" went away and everything worked as it was supposed to. BTW Gen1 seatbelt latches are a different width than Gen2 seatbelt latches. Go figure.

I think the SRS determines that the driver's side seat belt is being used if the belt is extended and it determines that the passenger side seat belt is being used if the belt is latched.

All this is moot unless you can determine what the SRS problem is and that requires a scanner.

My seatbelt fix story
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Last edited by rsrocket1; 05 May 2018 at 09:04 am.
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Old 06 May 2018, 07:30 pm
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Default Re: Passenger seat sensor, 2008

Thank you guys for directions!

Actually have bought a simple SRS reader and fetched following codes: B1B54 and B1B56 telling "1 st Row Passenger Seat Belt Sensor Circuit Low/Open".

Now not sure whether it's belt assembly itself or the buckle part.

And a couple of another updates:
- connectors accessible without seat removal don't show any pulled wires
- dealership says OCM can be replaced from another car - no VIN binding but calibration might be needed.
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Old 06 May 2018, 10:04 pm
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Location: Thousand Oaks, CA
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Default Re: Passenger seat sensor, 2008

Quote:
Originally Posted by denis90 View Post
Thank you guys for directions!

Actually have bought a simple SRS reader and fetched following codes: B1B54 and B1B56 telling "1 st Row Passenger Seat Belt Sensor Circuit Low/Open".

Now not sure whether it's belt assembly itself or the buckle part.

And a couple of another updates:
- connectors accessible without seat removal don't show any pulled wires
- dealership says OCM can be replaced from another car - no VIN binding but calibration might be needed.
I would suggest checking the seat buckle. They can trigger the two codes.
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Old 07 May 2018, 10:27 pm
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Default Re: Passenger seat sensor, 2008

Thanks folks!

That was a broken wire in seat belt buckle - fixed already.

Denis
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