I swaped seats from 2008 pontiac g6 to my 2006 pontiac g6... connections under seats are different. can i jus change the connectors or would i need to replace the whole airbag wiring harness?

occupant sensor pad/switch is under upholstery. check wiring and connector under seat.

Unhook both battery cables and short them together to discharge the capacitor that fires the air bag. Then you need to get in the passenger compartment and look under the seats for any connections that attach to the seat. Disconnect these. You then need to use tools to remove the bolts that hold the seat frames to the body and remove the seats. If you put in different seats or don't have the same connections as the old ones, you will have SRS errors on the BCM and the airbags and tensioners wont work. When you are done reconnect the battery cables,

there are airbag connectors under the front seats. I have had an experience with another car and found faulty connectors, Because it is happening all the time, I would start looking at the Drivers side first. Maybe change the connector or add a piece of wire around the connector. Not the switch in the seat, jus the wire connectors,

The thermostat is at the back near the transmission,just to let you know the water pump you have may be the one that has the plastic propellor they known to always fail.

yup thats your problem can you change the sensor from your old engine?

I only know of 2 possibbilities. You should find a find a wire connector under the drivers seat that will disable the alarm if unplugged. It will just have 2 wires. The other is to replace the radio with a non-standard one that has no module in it that rings the chime. You can raise the noise level by holding in the 6 button on the radio preset while turning the key on (without starting), ut I don't think you can turn it down...might be worth a try. Please do wear your seatbelt.
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I assume you are wearing your seatbelt. You will usually find a wire connector under the drivers seat that will disable the alarm if unpluged. it will just be a 2 wire connector.

Check the connector on the cylindrical motor under the seat. You can see it from the back seat well. The connector has a tendency to come loose because of stuff pushed underneath the seat.

Here's a quick check list for most common cost of SRS / Air bag problem.

Dirty contacts on driver and passenger seat belt buckles

Dirty contacts on seat belt connectors (under seats)

Dirty contacts on driver and passenger sides weight sensors (under seat)

Seat covers

Weight on passenger seat
(Example: grocery package trigger SRS / Air Bag light on the way home.)

I recommend you to pass an vacuum over the contacts and use CRC electronic parts cleaner to rule out connectivity problem.

I DO NOT recommend disconnecting the negative battery connector to clean the code(s).

Without the code(s) the dealer will takes "BILLABLE" time to reproduce the problem.

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