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.

A: Hi there. From the question asked, it hard ...

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Is my electrical system messing up?

Glad to help you on this. Yes, if the turn signals are not working, even as the bulbs are OK, there is definitely an electrical problem. A certified technician, like one from YourMechanic, would simply trace the circuit until the...

Q: I got code P0016 and P0008. I just want to know what caused the problem and which one is bank 1 sensor A?

Hello, this problem (both codes apply to the same problem) relates to a calculated "bad timing correlation" between the crankshaft and the exhaust camshaft for cylinder 1 (cylinder head at front of the car). Engine management has tolerances for the...

Q: I have a 2003 CTS and when I take a turn it's making like a popping noise.

The noise could be coming from the struts or the suspension. Check all of the bushings and bolts to the struts and the suspension and see if anything is loose causing the front wheels to move around when turning. Repair...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...