Even those trained on these systems are wary of them. One wrong move could result in serious injury. I do not recommend working on this system. The voltage should stay above 10 volts at all times during engine crank. The voltage can go too low during cranking even without a driver perception of the problem. This is the first thing I would do when testing this system.Ī low battery voltage can cause SRS codes but these should clear with an appropriate scan tool command. These control units are usually designed to so that the will not reset if the battery is disconnected for liability reasons. A short to ground on the wire from the SRS light to the control unit can cause this. It is possible but unlikely that the cause is in the inflator circuits. There is no way I know of to test for it except to substitute a known good unit. The most common cause of this is a failure inside the SRS control unit. You mentioned in your updated post that the SRS dash warning light is on but no with codes stored in the unit. That is the second yellow wire under the passenger seat. While some factory configurations do not allow for more seats to be added, they all have the ability to be altered in almost any way you can imagine. On this model there is an optional device in the passenger seat to detect if there is a person in that seat. In some situations, you can add seats to your Chevy Express Van. Do not touch this system without understanding and following all the manufactures cautions. These wires are carefully protected and colored yellow to let all who see then to work with caution. The yellow connector is for the side impact airbag inflator located in the outer seatback side bolster. This turns off the warning light on the dash. The plain white connector with two wires, black and brown with a white stripe, go to a switch in the seat belt buckle. So I am trying to figure out if there are any other low hanging fruits I can do at home. After disconnecting battery and waiting 20 minutes I cleaned those 2 thick cable connectors of possible rust with WD-40, but it did not help. So, I feel that I want to figure this AirBag issue on my own now. However, I did not fully buy into that idea, because car starts completely normally. Instead they recommended to replace battery because it is still the original one from 2007. I also went to Chevrolet dealership who supposedly should have had the right reader to get SRS codes, however, they said that they did not see any codes that are directly related with AirBag even though AirBag light was on when I brought car. My car does not give any codes on dashboard by blinking a code - it is solid red. The reason I am asking this is because the AirBag light is on. On the passenger's side there are two thick yellow cables that both go inside the seat - what is their exact purpose? One gotta be the AirBag cable just like on the driver's side, but what is the other one?
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