The Check Engine Light: Out of Sight, Out of Mind Mar 7, 2013 (Archives) The Toyota Pickup can do it all: tow, off-road, or just comb the streets. While the Toyota Pickup is one of the most rugged, dependable cars on the road, owners will inevitably be required to buy replacement parts. We sell only OEM parts no cheap or aftermarket knockoffs. If your Toyota was manufactured after the 1980's, chances are we've got the parts you're looking for. Alternator - Whether it's towing or off-road driving, the Toyota Pickup is built to handle heavy-duty driving. Unfortunately, that means certain parts can take a beating over the years. Alternators can last depending on the vehicle's demand, but five or six years is considered average. Replace yours with OEM parts, and get another six out of your truck. Headlights and/or Taillight Bulbs - Safety is very important when you're in the backcountry. When you're on the way back from a day off the beaten path, you don't want your headlights to fail.

Use our OEM parts and drive though the night safely and securely. Transmission/Clutch - Like the alternator, these wear down with heavy-duty usage. If you like to drive your truck (and we know you do), chances are you're in need of a replacement. , or call toll free today. All our operators have a minimum of 10 years experience with Toyota and are ready to answer your questions. Upgrade Headlight BulbsUpgraded headlight bulbs make driving safer and easier. Brighter headlights with longer reach improve night-time driving safety by you giving longer to react to danger. These are improved traditional filament bulbs for brighter, whiter headlights. There are a wide variety of upgraded headlight bulbs available, including Philips X-Treme Vision and ABD Extreme White. There are also some specialist headlight bulbs designed for longer life or high wattage (80w+) designed for off-road and racing use, as well as some styling bulbs designed to give a blue tinted headlight look.

Check out the new Twenty20 range, exclusive to ABD.co.uk You can filter by bulb size, type and brand using the options on the left. If you do not know which upgrade car bulbs fit your vehicle, please use our Bulb Finder above or Contact Us for helpWedding Dresses In Borivali38 Products found for this categoryPoodle Puppies For Sale AlbertaP0504 Brake Switch A/B Correlation CodePuggle Puppies For Sale In Perth Wa OBD-II Trouble Code Technical Description Article byDon BowmanASE Certified Automotive TechBrake Switch A/B Correlation What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model.

Your vehicle's powertrain control module (PCM) has set this P0504 code in response to a recognized failure in the brake light circuit. The vehicle's computer monitors all circuits for abnormalities such as lack of voltage or an out of range condition. The brake light switch is tied into several circuits all of which can result in a hazardous situation. The brake switch itself consists of two signal outputs and if there is a malfunction in the switch, it is detected and sets this code. This is not an expensive proposition in terms of the cost of the part or the labor involved in the replacement. The safety factor demands a repair as soon as possible. The brake lights will either be illuminated continuously or fail to illuminate as the pedal is depressed It will be difficult or impossible to shift out of park The vehicle may stall when the brakes are depressed while a cruising speeds The cruise control will not activate There are several components in this circuit, any of which is capable of compromising the circuit sufficiently to set this code.

The most common is the brake light switch whose failure is due to wear. The brake light fuse will fail at times due to moisture in the circuit or burning out the brake light. Brake light bulb failure is another cause many times due to water infiltrating into the lens. The wiring harness, more specifically the connectors are loose or pushed out pins will cause a correlation problem between the switch and PCM. Lastly, the PCM itself could have failed. Diagnostic Steps & Possible Solutions The brake light switch is located under the dash at the top of the brake pedal arm. The brake booster lifts the pedal to its fully extended position. The brake light switch is mounted on a cross-beam support brace directly behind the brake pedal mounting bracket. The only method to access the switch is to move the front seat rearward, lay on your back, and look up under the dash. You will see a bracket housing a switch near the top of the brake pedal arm. The switch will have four or six wires.

The switch rests in the bracket so that its activating rod is in contact with the brake pedal arm when the pedal is fully extended. At this point the switch is depressed by the brake pedal arm cutting off the current. When the brake pedal is depressed, the arm extends turning the switch on and activating the brake lights. When the pedal is released, the arm again depresses the rod turning off the brake lights. Have a helper check the brake lights. Make sure they operate by cycling them on and off and that the bulbs are good. If the brake lights are on continuously the brake light switch is either improperly adjusted or faulty. The same applies if they fail to operate. Move the driver's seat back and look under the dash. Squeeze the tabs on the electrical connector located on the brake light switch and pull off the connector. With the voltmeter check the voltage on the red wire in the connector. Place the black lead on any good ground and the red lead into the red wire terminal.

You should have 12 volts, if not check the wiring to the fuse block. Plug the connector into the switch and backprobe the white wire with the pedal depressed. You should have 12 volts with the pedal depressed and no voltage with the pedal extended. If there is no voltage replace the brake light switch. If voltage exists at the white wire with the pedal extended replace the switch. If the switch is of the adjustable category, check the adjustment. The switch must be in good contact with the pedal arm and fully depressed. If the brake lights function properly yet you still have the code, heck the remaining wires on the brake light switch. Remove the connector and probe the remaining wires for power. Make note of the location of the power wire and replace the connector. Back robe the wire adjacent to the power wire with the pedal depressed. If there is no power replace the switch. If the last test had power as the pedal was depressed the switch is good. The problem exists in the wiring to the computer or with the computer itself.

Locate the computer and back probe STP terminal on the computer to ground. If 12 volts is displayed on the voltmeter the computer is bad. If there was little or no voltage replace or repair the harness from the computer to the switch. Please be aware that some vehicles are equipped with driver side knee airbags. So be cautious when working around air bags. Here is the brake pedal switch shown on a 2011 Ford F-150 Related P0504 DTC DiscussionsGetting P0504 OBD Trouble Code in My Ford Figo 1.4 TDCiGuys - I am getting P0504 OBD Trouble Code in my Ford Figo 1.4 TDCi . 2002 Volvo Multiple codes p0016 p0422 p0432 p0504 p0571I bought 2002 Volvo car today and it only shows brake light on bored but when I went to smog check inspection, it Fail. shows the following fault codes. P0016- Crankshaft Position-Camshaft Position Correlation Bank 1 Sensor A P0422- Catalyst 2 Efficiency Below Threshold Bank 1 P0432- Catalyst 2 Effi... 2007 Hyundai Santa Fe P0571 P0504My Santa Fe has 100,000 miles on it.