Is this an LTZ with climate control or a regular "temp" knob and "fan speed" knob?
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04 Cavalier used cables for the mode and blend door and a real switch for the blower motor, what else is there?
Manual MVAC in the Cruze is just as close as you can get to an auto climate control system that I have long became tired of. One little problem with like the in-car sensor, can either freeze you to death or bake you alive.
Blower motor is solid state, usually a power MOSFET transistor that will short out before that 30 amp fuse will blow, and did happen quite frequently if your squirrel cage blower wheel was frozen shut. Switch fires commands to the BCM to control the duty cycle of the PWM signal. Instead of a ten buck nichrome resistor element, using a 17 cent transistor that will cost you around a hundred bucks to replace.
Wow, I see they dropped the price of this blower control module to 37 bucks! Should stock up on these!
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But in my Caddies and Buicks, I replaced that 17 cent power MOSFET with a 22 cent unit, these would let the fuse blow first before it would take out this transistor. And of course, the circuit was always hot, so could wake up to a dead battery. If darn cold outside, that battery would freeze up, even more problems, no warranty on a budged out battery.
These made in China actuators replaced the cables, the speedometer type cables by the way, 27 bucks each.
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Not too bad unless they short out the BCM, if you can't repair the BCM. But I guess this isn't too bad, rockauto.com wants 151 bucks for a replacement, but watch out for labor cost, and probably difficult for some kid to plug in seven different connectors in the right socket. Heck if it doesn't fit, hit it with a hammer.
So what did cost around 10 or 20 bucks just a few years ago can now cost us several hundred.
In the winter time leave my temp control at max, and blower motor switch off, wait until the car heats up before switching the blower on, and ready to switch it off if it doesn't start up right away.
Manual MVAC in the Cruze is just as close as you can get to an auto climate control system that I have long became tired of. One little problem with like the in-car sensor, can either freeze you to death or bake you alive.
Blower motor is solid state, usually a power MOSFET transistor that will short out before that 30 amp fuse will blow, and did happen quite frequently if your squirrel cage blower wheel was frozen shut. Switch fires commands to the BCM to control the duty cycle of the PWM signal. Instead of a ten buck nichrome resistor element, using a 17 cent transistor that will cost you around a hundred bucks to replace.
Wow, I see they dropped the price of this blower control module to 37 bucks! Should stock up on these!
But in my Caddies and Buicks, I replaced that 17 cent power MOSFET with a 22 cent unit, these would let the fuse blow first before it would take out this transistor. And of course, the circuit was always hot, so could wake up to a dead battery. If darn cold outside, that battery would freeze up, even more problems, no warranty on a budged out battery.
These made in China actuators replaced the cables, the speedometer type cables by the way, 27 bucks each.
Not too bad unless they short out the BCM, if you can't repair the BCM. But I guess this isn't too bad, rockauto.com wants 151 bucks for a replacement, but watch out for labor cost, and probably difficult for some kid to plug in seven different connectors in the right socket. Heck if it doesn't fit, hit it with a hammer.
So what did cost around 10 or 20 bucks just a few years ago can now cost us several hundred.
In the winter time leave my temp control at max, and blower motor switch off, wait until the car heats up before switching the blower on, and ready to switch it off if it doesn't start up right away.
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