This is why the later years went to the Gell Cell Battery! As these cars age more we are sure to see a pattern develop. Battery acid was a big contributor to many of these types of problems in the early model C5's (97-2000) or any car with a lead acid battery. Your search for leaks would be best served in the engine compartment first. So it would be fair to say to trouble shoot this kind of problem you will need a vacuum gauge and a schematic for the HVAC system. Actuators for the vents are run off engine vacuum. One of the major players in the control of the HVAC is vacuum. We'll give you as many ideas and common problems that arise as we know to help. We have saved the worse Corvette Air Conditioning problem for last! Sorry for your luck! Nothing about this kind of problem is fun. A properly operating system should put out a temp of 40-50 deg F. A good way to check an A/C system is to use a temp gauge and install it in one of the vent and put the A/C on max cold. Slightly low service A/C systems will still work but will have a low output. A flashing light after pushing the A/C button would be one indicator of low level or some other malfunction. The pressure sensors installed in the system work with the controller to monitor and control the clutch depending on user demand and mode. So if you have low service in your Corvette Air Conditioning the clutch will not engage to protect the compressor from damage. Also is one leg of the circuit being shorted to ground. A failed clutch can be checked using an ohmmeter to check for continuity in the magnet circuit. The clutch will not engage if insufficient A/C system pressure is not present. An electrical current is applied to a magnet which engages the compressor via a metal disk mounted on the compressor housing. How the Corvette Air Conditioning Clutch works is relatively basic. Like computers Corvettes sometimes just need a good reboot! Write down the code(s) and keep it for future reference.Īs we stated above you probably wont have any codes and if you are reading this we're correct! Your next task will be to select what problem you have from the paragraphs below! But if they are, try resetting the codes and retry the A/C system again and see if that fixes your problem. But remember some codes will affect drive ability of the car if present! Clearing them may give you a fresh start to troubleshoot.ī0332 Outside Air Temp Sensor Short to GNDī0337 Inside Air Temp Sensor Short to GNDī0361 Left Actuator Feedback Short to GNDī0365 Right Actuator Feedback Short to GNDĬhances are none of these codes will be present. NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Repeat the steps in this paragraph until you have reset the codes in all the computer modules. To optionally reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. It should start with a module and show NO CODES or a list a DTC CODES in order for that Module. Once the computer has finished going through all of it's codes, press RESET to enter Manual Configuration mode. Any code that ends in H is a history code (something that has occurred in the past) but is fine now. It will cycle through each code every 3 seconds. The computer will automatically display all the codes your car has created. You should be into the CODES section of the DIC. Once you have the codes, the next question is: What to do with the information? First, consult the factory service manual. You are simply erasing the evidence of it in the module's memory. Clearing a code does not repair a problem. NOTE!! Only reset the C5 DTC Code IF you want to it's NOT necessary to do this. The Diagnostic Display Mode is entered with the following procedure:ġ) Turn on the ignition but don't start the engine.Ģ) Press the RESET button to turn off any warning messages.Ĥ) While holding OPTIONS, press FUEL four times within a 10-second period. To display C5 DTC Code diagnostic trouble codes for all modules that transmit them. Here is an overview of the procedure and terms used for resetting codes. Go to module 99-HVAC - Heater, Ventilation, Air Conditioning Use the below procedure to find Corvette Air Conditioning Diagnostic Trouble Codes for the HVAC system. R134A Refrigerant 24-26oz (check fender label)Ī/C Clutch AC Delco 15-40151 Air Conditioning Clutch Coil AssemblyĪ/C Compressor Delphi CS0132 Air Conditioning Compressorīlowing air out of floor vents only (no control) We decided to write this page from the overwhelming demand from the "Ask" section of our website.Ģ types of controllers Manual and Dual Zone Corvette Air Conditioning Common Problems and Fixes for C5 GenerationsĬorvette Air Conditioning on C5 Corvettes is one of the most common problem areas for C5's.
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