I recently purchased and installed a used driver's seat in my Prius III. After doing so, I realized that there is a connection with the air bag that needs to be reprogrammed. Do I have to take this to the dealer ($150) or can I do it myself? Do I need to buy a special tool?
[QUOTE="Poppajack747, post: 3119586, member: 782"I realized that there is a connection with the air bag that needs to be reprogrammed.[/QUOTE] What led to your realizing this?
The Repair Manual (more info) procedure for installing a front seat assembly doesn’t mention reprogramming, unless you’re installing the passenger seat, in which case you’re supposed to do a zero point calibration and sensitivity check for the occupant classification system. The last step in the procedure is to inspect the SRS (supplemental restraint system) warning light. If the light is off but comes on briefly each time the car is turned on, then no problems have been detected with the airbag system or seat belt pretensioners. One possible cause is a defective seat belt buckle switch, part of the front seat inner belt assembly LH, or its wiring—but it’s unlikely to be a simple open or short, which I’d expect to have been detected by the center airbag sensor assembly, which would have turned on the SRS warning light and set diagnostic trouble code B1656/38, Seat Belt Buckle Switch LH Circuit Malfunction, for which the Repair Manual gives a detailed troubleshooting procedure. Before you do that procedure, however, do the simple check: is connector R4, a four-position connector with violet, green, green, and red wires, connected to the front seat inner belt assembly LH?
Took it to the dealer who quoted $350 to replace the seatbelt buckle. I will be further inspecting the wiring.
I don't think the inner buckle assembly is a part of the seat proper. But I can imagine its electrical connector getting handled in the process of swapping the seat. That's where my bet is placed.
