Skip to main content
 Open Mon - Fri   8:30am - 5:00pm
ABOUT   CONTACT    
FREE Shipping

System Diagnostics & Code Clearing

The very first scan tools were introduced by Volkswagen all the way back in 1968. In 1980 General Motors introduced a proprietary interface and protocol capable of providing engine diagnostics through an RS-232 interface or more simply, by flashing the Check Engine Light.

Standardisation of on-board diagnostics came in the late 1980s. The technology in cars has come a long way since then. Over the decades and with advances in motoring, scan tools have become absolutely critical in today’s automotive repair industry. Scan tools are used for anything from monitoring tire pressure to recalibrating your climate control system.

Check-Engine Light, what does it mean?

If you’re positive that it’s the check-engine warning light staring back at you from the instrument cluster, there are some key things to consider. If the light is a steady orange or yellow and there is no perceptible change in how the car is driving, you probably don’t need to stop the vehicle immediately. There is a good chance it could be a minor problem, however, it’s not smart to ignore the problem until the car does have noticeable issues. In the rare instance that the warning light starts flashing it is advised to pull over when it is safe to do so and turn your car’s engine off. A flashing warning light almost always indicates a serious problem has occurred; Severe damage could be done if you continue to drive your car.

It is important to note that Scan tools do not actually fix or directly diagnose anything. However, without these functions being available from a scan tool, diagnostics, calibrations, and re-learn functions are often impossible to perform. Scan tools provide vehicle data and show trouble codes stored within the vehicle’s computer networks. Access to these codes directs the technician to the area of concern. Vehicle computer networks also automatically disable many vehicle functions when a trouble code is stored even after the actual fault has been repaired. Clearing the code can restore the function giving the appearance that the scan tool “fixed” the problem. However, if the fault is still present the code will re-appear and a malfunction indicator or message could illuminate, or a particular function may become inoperative again.

Noting, repairing, and clearing codes is a great way to monitor the health of your vehicle. Not only can you detect malfunctions, but you can also monitor driving habits or find out what could be causing your car to show a reduction in its performance. Failing to clear a code after a repair could leave you second-guessing the issue or doubling your work to recheck the codes. That’s why you should always clear engine fault codes once any repairs have been carried out. A fault code is not always indicated by an illuming light on the dashboard. Cars often have what is known as pending codes. Pending codes are stored in your vehicle’s memory. These codes are outside of the vehicle’s emissions control system and often do not trigger a check engine light.

Double-checking for error codes means you can be assured your vehicle does not have any faults or needs repairs. The only way to check and read fault codes is with the use of a scan tool. Not repairing a vehicle and leaving the codes unchecked could leave you making major fixes later, costing you time and money.

No Service
Cool Car Air Conditioning is not taking on any new service work. We apologise for any inconvenience.
Contact Cool Car Air Conditioning for a quote and friendly advice.

50
    50
    Your Cart
    Genuine A/C Compressor Holden Captiva CG 3.0L Petrol 2011-2017
    2+ shoppers have bought this
    Genuine A/C Compressor Mitsubishi Lancer CJ CF 2.4L Petrol 2008-2019
    3+ shoppers have bought this
    A/C Compressor Subaru Forester SJ 2.0L Diesel 2013-2018
    2+ shoppers have bought this
    A/C Compressor Ford Courier V6 2005-2006
    $495.00
    A/C Compressor Audi A4 B9 1.4L Petrol 2.0L Diesel 2015-2020
    1+ shoppers have bought this
    Genuine A/C Compressor Toyota Landcruiser HDJ100R HDJ105 4.2L Diesel 2000-2007
    7+ shoppers have bought this
    A/C Compressor Holden Colorado 2004-2010
    $595.00
    A/C Compressor Hyundai Santa Fe DM 2.2L 2012-2018
    2+ shoppers have bought this
    A/C Compressor BMW M135i 335i F20 F30 2007-2019
    1+ shoppers have bought this
    A/C Compressor BMW 525i E60 530i E60 Z4 E89 2003-2016
    1+ shoppers have bought this
    A/C Compressor Clutch Kit Suits Volvo V60 Cross Country XC60 2015-2018
    1+ shoppers have bought this
    A/C Compressor Ford Mustang 2.3L 2015-2017
    1+ shoppers have bought this
    $1,520.00
    A/C Compressor Porsche Cayenne 4.5L V8 2002-2009
    8+ shoppers have bought this
    A/C Compressor Nissan Pathfinder Hybrid R52 2.5L Petrol 2014-2021
    1+ shoppers have bought this
    A/C Compressor Audi A5 2.0L 3.0L TDI 2011-2018
    1+ shoppers have bought this
    Genuine Denso A/C Compressor Toyota Estima 2.4L Petrol 2000-2006
    2+ shoppers have bought this
    A/C Compressor Holden Vectra JR JS 1997-2003
    1+ shoppers have bought this
    A/C Compressor Citroen C5 C6 Peugeot 607 407 Sanden 1302
    1+ shoppers have bought this
    Genuine A/C Compressor Hyundai i45 YF 2.0L 2.4L 2010-2012
    1+ shoppers have bought this
    Genuine A/C Compressor Toyota Hilux RZN147-174R 2.0L 2.7L 1997-2005
    1+ shoppers have bought this
    A/C Compressor Holden Barina XC 1.4L 1.8L 2001-2005
    1+ shoppers have bought this
    A/C Compressor Holden Caprice WM 6.0L 2006-2013
    1+ shoppers have bought this
    A/C Compressor BMW 318i E36 1.8L 1.9L 320i E36 2.0L 1991-2000
    1+ shoppers have bought this
    A/C Compressor Toyota LandCruiser VDJ200R 4.5L URJ202R 4.6L 2007-2019
    3+ shoppers have bought this
    A/C Compressor Toyota LandCruiser UZJ100R 4.7L 1998-2007
    2+ shoppers have bought this
      Calculate Shipping