Now they have been discontinued and this repair service is growing in popularity. When the climate control module fails, your A/C or heater may not operate, which may make the vehicle uncomfortable to drive. In the past it was popular to simply replace these modules and few repair shops like ours existed that knew how to repair them. Overwhelmingly, these problems are caused by faulty solder joints for power supply resistors on the module’s internal circuit board. Running a car hot for a long period of time can lead to other damages like a blown head gasket. Without the cooling fans running properly, you will be at risk of having the car overheat. If your module looks like this one and has a blank display while installed in the car and turned on you may be wondering what could be wrong. If the cooling fans are not coming on at all, then this may also be a sign that the fan control module is damaged. Keep your Corvette running at top speed with with Factory OEM car parts Find affordable and authentic parts that fit your Corvette's Y-body design. The image above is of the automatic climate control module for a C5 Corvette. 1991-1996 Corvette C4 Front Bumper Impact Bar Skid Plate Frame USED. The left thumbwheel routes vacuum to the various air doors under the dash while the right wheel operates the cable to vary the temperature. The controller won't work without vacuum. Terminal 2 is a purple wire and must have 12 volts all the time. First make sure the vacuum system is working correctly and that the heater cable is hooked up. If you use a digital voltmeter, the module should be connected to get more accurate readings. Some C5 Corvette owners have reported that when these problems occur hitting bumps in the road or tapping the climate control panel may cause the symptoms to worsen or improve. The next step is to check the power supplies and grounds at the controllers connector. The 2 codes that were present in the system were: B2252H and. When it scanned module 99 (FIVAC Heater Vent-Air Conditioning, the driver information center displayed 'No Communication'. Chevrolet Corvette fuse box instrument panel. Turn the knob and pull the door to access the fuses. Any of these problems may be constant or intermittent. c4c5specialist, There are 2 codes that came up. The interior fuse center is on the right side of your instrument panel. A very common problem with the air conditioning displays on these Corvettes is that they either display dimly, sometimes sections are dim, they don’t display at all, or they don’t function at all. This module houses all the computerized control and operating software to carry out your automatic climate control functions. The air conditioning display on a C5 Corvette is known as a Climate Control Panel or Climate Control Module interchangeably.
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