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Need year, make, model but on most of them the a/c relay will be located on the climate control unit behind the glove compartment
Volvo
Engine control unit or electronic control unit.
pry the trim piece surrounding it straight off. that will expose the four screws which need to be removed. bend down the two metal tabs and remove module
The idle air control valve on a Volvo S80 is located on the intake manifold. The valve controls the rate at which the engine holds an idle.
What year and model
Yes I do own a Volvo C70 convertible 2008 model and a bugatti veyron and a lamborghini gallardo custom.
my 2002 volvo s-40 is miss firing and it is alleged that the fault is from the idle air control valve. how can i clean the valve?
in the upper control module
P1651 is the same as Volvo code 981A, engine control module internal fault / faulty signal.
Usually right above your temperature control on your dash
Trouble code P0505 means:Idle control system malfunction