Volvo S70: My Technical Triumph in Resetting the SRS Airbag Light
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This article was reviewed by the YOUCANIC editorial team.
I can only attest to this procedure when working on a 2000 Volvo S70 GLT SE, although I could do it on multiple airbag modules.
Background
When I acquired this vehicle, the SRS light was on. The previous owner took it to the dealer and was told that the driver-side seat belt needed to be replaced. So I installed a 2-ohm test resistor on the ignitor connector, but the code would not clear. At this point, I sent the module to Myairbag.com to be reset, but they returned it, saying it had a hardware problem and could not be economically repaired.
I ordered a used SRS module from eBay and plugged it in. The SRS light is still on, so I bought the Youcanic scanner. When I scanned for codes, it said the left-side impact sensor was missing a signal.
I swapped the sensor with the right side and now had codes for both sides. I swapped them back and installed a “new” junkyard-acquired sensor on the left side. Now, I could clear the code for the right side but not the left.
At this point, I tested the wiring for the left side, and it tested well. I tried two more scanners, but the code would not clear. So I called my local indie, and he said his Vida software cannot do what the dealer can do, and he suggested I take it there. So, I scheduled an appointment for a few days out in case I couldn’t fix it. At this point, I thought I was willing to try anything.
Resetting SRS Light
I went into the SRS module again and read the code. Still, this time, instead of following the scanner instructions (start the engine, rev to 1500RPM, engine off, start again, and idle for 20 seconds), I turned the key off, then turned the key to the number 2 position and back off again ten times without…
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