Hey all, I am new to this forum and I hope you guys can help me out. My 2006 cadillac dts had the service traction control/service stabilitrak light come on (a min later the service engine soon came on too). I checked all of the fuses and found a blown oxygen sensor fuse. I replaced that fuse and the service traction control/service stabilitrak light turned off. I checked the codes with a obd2 scanner and found six of them!!

p0412 Secondary Air Injection System Switching Valve A Circuit Malfunction
p0102 Mass Air Flow (MAF) Circuit Low Input
p0036 Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2
p0418 Secondary Air Injection (AIR) Pump Relay Control Circuit
p0480 LOW SPEED COOLING FAN RELAY CIRCUIT FAULT
p0481 Cooling Fan 2 Control Circuit Malfunction

About 3 weeks ago the same service traction control/service stabilitrak lights came on, in that case the pcm fuse was blown. I replaced it reset the codes and they just now returned.
At this point the only thing I can think of is a faulty pcm/ecu. The reason I think that is because that is the one thing these all have in common, they are all controlled by the pcm/ecu. What do you guys think? Do you have anything else for me to check. Thanks, Dustin.

to me it seems more like a wiring issue, blowing fuses is generally caused by a wire shorting to ground and since its two different circuits it likely two different wires. the different codes are likely just because those fuses power more than one thing.