You're not going to fail because of your tpms light on. Pretty sure you can't fail someone for that. If the light was on I may check all the pressures. If the are fine then obviously they aren't in there or there is a malfunction. I may try to sell the customer the work to fix it but I can't fail them for it. Tpms is a dummy light. The main concern is the condition of the tire. If it's filled properly and has plenty of tread that's all you need to know.
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99' Sti
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