CA 171 is split by A 121 in Captain America’s chronology. Both Black Panther and Iron Man appear in both CA 171 and A 121, and both have CA 171 before A 121 in their chronologies. So, the split in CA 171 has to be after Black Panther’s and Iron Man’s appearances in CA 171. Iron Man appears last. So we’re looking at:
Iron Man tells Falcon that Cap is wanted for murder and sends Falcon to find and arrest Cap (CA 171 (15-16:3)).
Cap helps the Avengers fight the Zodiac. The Avengers mention that Cap is wanted for murder (A 121).
Falcon finds Cap and tells him he’s wanted for murder (CA 171 (16:4-19)).
CAPTAIN AMERICA/STEVEN "GRANT" ROGERS
…
CA 170
*CA 171 (1-16:3)
A 121
*CA 171 (16:4-19)
CA 172
…