diagnostics car tool the switch is poor. If there is absolutely no power

Ways to Troubleshoot an Automobile Air Compressor 1Start the automobile and turn the air on. If there exists a scraping, tinny sound just when the compressor is turned on that goes away as soon as it is turned off and also the compressor is still good, the clutch requirements to be replaced. The clutch might be replaced without having discharging the A/C program if it really is accessible. Just take away the belt and leave the compressor mounted towards the engine.2Check the clutch operation if it does not come on. Apply power directly for the wire on the top front of the compressor. If it comes on diagnostics car tool, then there is an electrical problem to be traced. If it will not come on, replace the clutch.3Listen for any rather loud knocking noise because the compressor operates.

It the noise goes away when the air is turned off, the compressor is about to self destruct internally and needs to be replaced as soon as possible. Do not use the air till the compressor is replaced because the vanes inside the compressor are coming apart plus the more it is run the far more material it'll release in to the method, causing a blockage. This could get really high-priced if each of the parts require to become replaced inside the air conditioning method.4Hook up the gauges towards the A/C method and turn the air on. When the compressor doesn't come on, check the pressure on the gauges. The blue or low side needs to be around 75 to 80 pounds in an effort to operate the low side switch to kick the compressor on. When the pressure is below 75 pounds the technique requires to become charged as a way to get the switch to activate, permitting the compressor to perform. The low side switch is installed so that if the pressure (as inside a leak) drops, it shuts the compressor off, stopping harm to it. In the event the pressure is appropriate and in range then an electrical trouble is present.5Check the low side switch for energy with all the air on. If there is power, jump the connector and see in the event the compressor comes on.

If it does, the switch is poor. If there is absolutely no power, check the fuse for the air conditioning within the fuse relay box below the hood. Verify the relays by pulling them out and checking the terminals for power at two terminals. If there's energy at only 1 terminal, the problem is inside the cabin. If it has power at two locations, the relay is negative.6Check the gauges when the air comes on and doesn't awesome. The right readings will differ a little bit with all the outside temperature, but should really be close to 25 to 40 pounds on the low or blue side and 210 to 250 on the red or high side. If both sides are low plus the compressor is working, the program needs to become charged. In the event the high side is low as well as the low side is high, the compressor is no superior. In the event the high side is high along with the low side is close to typical Vehicle Diagnostic equipment, there's either a blockage inside the expansion valve or orifice tube, a radiator fan not working or a plugged up condenser.

Obd2 scanner On

Ways to Troubleshoot a Ford EEC-IV Fords Using a Verify Engine Light1Put your important in to the ignition and start the vehicle. Let the vehicle idle till the engine is totally warmed. Wait five to 10 minutes, or rev the engine at 2000 rpm for two minutes.2Turn the engine off and engage the parking brake. Ensure that the air conditioning is switched off fully.3Open the hood from the vehicle and find the Self Test Outlet. The location will differ by model of Ford. The STO is trapezoidal in shape and capabilities six ports. Nearby might be the Self Test Input. It's going to function only 1 port.4Place a jumper wire in to the self test outlet's grounding port.

This can either be the best slot on the top row, or the left-most slot on the bottom row. Consult the owner's manual to be specific you happen to be utilizing the best slot.5Turn the ignition essential to "On." The codes might be relayed by the check engine light flashing. Count these flashes. The trouble codes themselves are either two or three digit numbers. There will probably be a short pause between numbers Auto diagnostic tools. For example, code 14 will have the examine engine light flash when; then there will probably be a little pause, and subsequent the light will flash 4 much more times. Longer pauses in between lights indicate the end of 1 trouble code, plus the beginning of one more. Write down all of the codes.6Turn the Ford off Obd2 scanner.

For EEC code definitions, seek the advice of one from the several OBD-I web-sites out there.Fords With out a Examine Engine Light7Start the automobile and let the engine warm. Then, turn the engine off.8Set the volt meter to read amongst 0 and 15 DC volts. Connect your volt meter's good result in the postive terminal on the Ford's battery. Then, connect negative lead to the self test outlet's grounding slot.9Connect the self test outlet's signal return slot for the self test input having a jumper wire.10Turn the Ford "On," but usually do not commence the engine. Count the times the needle sweeps. There will likely be a tiny pause in between numbers within the code. Code 14, for instance, will have one particular needle sweep, followed by a pause after which 4 more needle sweeps. Lengthy pauses indicate the starting and finish of a brand new difficulty code.

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Vehicle Diagnostic equipment OK&quot

Tips on how to Troubleshoot a 2001 Pontiac Montana 1Locate and take away the cover from the fuse box on your Pontiac Montana. The fuse box is on the side with the dashboard, on the driver's side from the automobile, and it could be easily accessed when the passenger door is opened automotive diagnostic tool.

Locate the OBD multiple-pin port in the fuse box and plug the diagnostic tool into the port. Turn the ignition essential for the "On" position but do not commence the vehicle.2Power on the diagnostic tool, following the manufacturer's directions, and wait for it to download the difficulty code. The tool will normally say "OK" (or the equivalent) when the trouble codes happen to be downloaded.3Unplug the tool from the port and replace the fuse box cover.

Scroll down on the diagnostic tool menu to "Retrieve Code" and choose this selection. The OBD-II reader will report any difficulty codes stored inside the computer system that brought on the "Check Engine" light on the dashboard to illuminate.4Reference the codes that you downloaded within the earlier step for the troubleshooting codes in the owner's manual for the 2001 Montana. Repair or replace the identified parts as needed Vehicle Diagnostic equipment.

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car diagnosis tool ON&rdquo

The way to Tell when the Crank Angle Sensor Is Negative 1Power on the scan tool and connect it towards the diagnostic port inside the vehicle car diagnosis tool. Turn the ignition towards the “ON” position.

2Navigate to the live sensor functions menu of the scan tool Auto diagnostic tool. Select the crank angle sensor.3Disconnect the fuel pump fuse. Turn the ignition to the “START” position and crank the engine.

4Watch the readout on the scan tool. When the tool does not display the cranking RPM while the engine is turning then the crank angle sensor is bad.5Repeat steps 3-4 once more to rule out the possibility of an error.

Auto diagnostic tool rust

The best way to Troubleshoot a Range Rover 1Look for the OBD II connector if your Range Rover was created in 1996 or later Auto diagnostic tools. The plug is positioned within several feet of the steering column and is usually to the decrease left of the under-console from the steering column close to the driver's fuse box. If your Ranger Rover was developed ahead of 1996, then you'll need to work with an OBD I translator plan that connects for your pc to be able to study the troubleshoot code. Turn on the OBD scanner and turn the ignition essential towards the accessories position.2Replace any sensors that come up from the OBD II scanner. Recall to make use of a multimeter to test the electrical connections top as much as the sensors for resistance. When the terminals on any of the connections indicate infinite resistance Auto diagnostic tool, then you probably have an electrical problem as an alternative to a problem using the sensor itself. It is vital to note that the OBD II doesn't necessarily tell you the exact dilemma, on the other hand, it will let you know certain circuit and sensor components which might be not functioning properly.3Listen for your Range Rover as you pump the brakes. In case you hear metal on metal sounds although braking, then your brake pads are worn out and are scratching the rotor surfaces. Additionally, in the event you really feel the brake pedal pulsating whilst braking then your rotors either have to have resurfacing or replacing. Lift your Range Rover utilizing a floor jack and jack stands and eliminate the tires. Determined by your model, you could possibly need to remove the calipers having a torque wrench from the rotor mounts so as to access the brake pads. Inspect the rotors for grooves, rust, cracks or other indicators of wearing out.4Listen for your Ranger Rover for metallic clicking or grinding noises. In the event you hear these noises after you commence up the engine, your starter is not engaging properly together with the flywheel and has the potential to permanently damage the teeth in your flywheel, which equals a expensive repair. Alternatively, if the noises are coming from acceleration or turning, then your CV joints are probably bad and have to have replacing. Should you let your CV joints go for also extended, you may lead to permanent damage for your axle system.

Obd2 scanner s computer and displays the diagnostic codes on its screen.6Activate scanner&rsquo

Tips on how to Shut Off the Verify Engine Light on a GMC Envoy 1Open the fuse panel in your Envoy. Pull down on the fuse panel cover and set it aside.2Locate the input for the diagnostic tool on the fuse panel. There exists only a single port large sufficient to accept the OBD plug.3Plug the OBD tool into the fuse panel.4Turn the OBD reset tool on by pressing the energy switch.5Turn the ignition crucial to the "II" position and wait for the examine engine light to shut off.

Tips on how to Shut off the Verify Engine Soon Light on a 2000 Ford F-150 1Adjust the driver’s seat as far back as it will go and look under the driver’s side of the dashboard to find the data link connector — the male receptacle in the same shape as the plug on the end of the OBD-II diagnostic scanner.2Plug the OBD-II diagnostic scanner’s plug into the F-150’s DLC.3Turn the F-150&rsquo auto diagnostics software;s ignition to the run position, but do not start the pickup. Most scanners boot up automatically at this point, but some do require you to turn them on manually.4Enable the OBD-II diagnostic scanner’s code scanning feature.

This process varies between scanners Obd2 scanner, but most diagnostic scanners have a “Scan” button on them. Refer to the scanner’s instructions for specifics.5Observe as the scanner communicates with the F-150’s computer and displays the diagnostic codes on its screen.6Activate scanner’s code deletion feature. This process differs between scanner models, but most you simply toggle down to “Erase Codes” or “Delete Codes” and press enter, then follow the prompts on the screen. Refer to the scanner’s instructions for specifics.7Watch as the scanner goes through its code deletion process, then prompts you when it finishes erasing the codes.8Turn the F-150’s ignition to the “Off” position and unplug the scanner from the DLC.

car diagnostic software . Turn off the engine and set the parking brake.

Ways to Retrieve a Code on a '99 Saturn Sl2 1Shift the SL2's transmission into park or first gear (manual). Turn off the engine and set the parking brake.

Turn the ignition to the "RUN" position, but don't start the engine auto diagnostics software.2Plug the scan tool's data cable into the Saturn's diagnostic port located underneath the dashboard on the driver's side, just above the pedals.3Power on the scan tool and select "PCM" car diagnostic software; from the main menu. Select "codes," then select "read all current and stored codes."

Wait for the scan tool to display the codes.4Write down all of the codes displayed on the scan tool's screen. Power down the scan tool and disconnect it from the vehicle.