Hello,I will be glad to try and assist you with this,Welcome to Just Answer.
This fault code will set when a fault is detected in the secondary air injection system on the vehicle,this may not be the pump at fault especially here since it comes on when the vehicle is started.
Most commonly I have found faulty oxygen sensors
before the catalytic converter can fail and read incorrectly and cause this problem here.
There are shut off/check valves in line with this system as well that allow the air from the pump to enter the exhaust
,if any of these fail this code can also set.
This system needs tested using a scan tool with function capabilities to command the air pump on so the valves operate as well when needed,jumping the pump wont open the valves up for proper operation.
Then once the pump is commanded on the data of the oxygen sensors before the catalytic converter needs observed on the scan tool.The voltages of these should drop below .1 volt or below 100 millivolts and hold for awhile while the pump is running.
If they drop below this but then come right back up then most likely one of the shut off/check valves has failed and needs replaced it depends on which sides voltage has rose back up.
If they do not drop or one of them doesn't drop then it may be a faulty shut off valve on that side of the engine or a faulty oxygen sensor.Most common is usually a faulty oxygen sensor.
If you don't have a scan tool to do this check then a shop or dealer would have to do this for you to determine what is at fault.Double check the hoses from the air pump are connected correctly to the check valves.
Let me know if you need anything else,click accept if you feel satisfied with your answer as this is how I get credited for my time,Thanks Pete!