According to the Iraqi Constitution... steps to withdraw confidence from ministers or Prime Minister

Eighth:
A. The Council of Representatives may withdraw confidence from one of the
Ministers by an absolute majority and he shall be considered resigned
from the date of the decision of withdrawal of confidence. A vote of no
confidence in a Minister may not be held except upon his request or on the
basis of a request signed by fifty members after the Minister has appeared
for questioning before the Council. The Council shall not issue its
decision regarding the request except after at least seven days from the
date of its submission.
B.
1- The President of the Republic may submit a request to the Council of
Representatives to withdraw confidence from the Prime Minister.
2- The Council of Representatives may withdraw confidence from the
Prime Minister based on the request of one-fifth of its members. This
request shall not be submitted except after an inquiry directed at the
Prime Minister and after at least seven days from the date of
submitting the request.
3- The Council of Representatives may decide to withdraw confidence
from the Prime Minister by an absolute majority of the number of its
members.
C. The Government is deemed resigned in case of withdrawal of confidence
from the Prime Minister.
D. In case of a vote of withdrawal of confidence in the Council of Ministers
as a whole, the Prime Minister and the Ministers continue in their
positions to run everyday business for a period not to exceed thirty days
until a new Council of Ministers is formed in accordance with the
provisions of Article 76 of this Constitution.
E. The Council of Representatives may question independent commission
heads in accordance with the same procedures related to the Ministers.
The Council shall have the right to relieve them by absolute majority

[You must be registered and logged in to see this link.]