Skip the auto shop - Our mechanics make house calls

Q: AC AUTO LIGHT LIGHT COMES ON HOW DO YOU RELACE FAN CONTROL MODULE 1986 CADDY

asked by on

ONLY COMES ON WHEN TURN AC ON

My car has 41000 miles.
My car has an automatic transmission.

Hi there. From the question asked, it hard to know which fan control module you want to replace - the blower fan control module or engine cooling fan control module. Assuming, it is the blower motor control module, before it gets replaced, you should check the fuses, the blower motor relay, and the blower motor should be checked.

The same holds true for the engine cooling fan module. The fuses, cooling fan relay, and radiator cooling fan(s) should be checked. It could also be a faulty cooling fan temperature switch, if it is, inoperative engine cooling fan(s). With all of the possibilities. I recommend having your vehicle’s inoperative fan(s) be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. AC AUTO LIGHT LIGHT COMES ON HOW DO YOU RELACE FAN CONTROL MODULE 1986 CADDY

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The car starts then dies.

Hello there. In most cases, when there is a situation like yours when the car starts then dies, it's due to a fuel or ignition system failure. In some instances it is due to components like fuel injectors, Mass Airflow...

Q: Water pump in 96 Cadillac is over tightened, is the only hope to replace the water pump housing?

The only possible alternative to gain access might be to raise or lower the entire engine and transmission assembly. This would add a large amount or labor time and cost to the repair as engine and transmission mounts would have...

Q: Hard starting

Hello and thanks for writing in. This could be a few different things, however what you are describing sounds like a faulty fuel pressure regulator. Th fuel pressure regulator is a unit that bleeds off a bit of the fuel...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...