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Mazda mazda3 key fob battery replacement guide 2010 , How to change the battery in the keyless entry remote control fob of a second generation mazda mazda3 with photo illustrated steps and replacement part numbers.. Mercedes benz questions answers ecu problems, If you are having a problem with your mercedes benz and you think it may be related to the ecu feel free to post your question here and one of our technicians will. Mercedes benz questions answers ecu problems, If you are having a problem with your mercedes benz and you think it may be related to the ecu feel free to post your question here and one of our technicians will.Mercedes cars. How to replace the coin cell battery in the keyless entry system's combo car key and key fob remote control for a Honda Fit (Jazz).
Opinions expressed in the comments section are the opinions of the commenters and do not necessarily represent my views or the views of my employer. If you have the part number (GM or AC-Delco), Amazon can often have a good price if they have it available. The Keyless Entry Receiver is capable of accepting Vehicle Access Code (VAC) programming from any two random Transmitters.
Receiver can only be programmed by the Transmitter when it is powered at the Battery input at connector C2 terminal "F" and the program input line is grounded to connector C1 terminal "A". Ground the program input line by connecting a fused jumper at the Data Link Connector (DLC) from terminal "G" to terminal "A" (note: use terminal G and A for pre '95 12 pin DLC. Remove the fused jumper from the DLC and verify system operation using all three Transmitter buttons.
The Keyless Entry System will not be operational if the program input line is left grounded. Cycle ignition switch from OFF to RUN three times within five seconds until the door locks and the hatch release cycle, indicating the Body Control Module is in the Programming Mode.
Press and hold BOTH LOCK and UNLOCK buttons on remote control door lock transmitter for 16 seconds. When programming the Body Control Module to match remote control door lock transmitters, the first transmitter code matched will be stored in memory unless a second remote control door lock transmitter is matched at the same time. Power Door Locks, Hatch Release and Power Mirrors all continue to operate for approximately 35 seconds.
Power Door Locks, Hatch Release and Power Mirrors all operate as long as the Ignition Switch is in "ACCY or "RUN". Power Door Locks, Hatch Release and Power Mirrors all operate for approximately 10 minutes. Put the key into the ignition switch and turn it to the RUN position (to disarm the theft deterrent system if equipped). Turn the ignition switch to the ACC position (enters "Program" mode for feature customization, 1 or 2 chimes for mode verification).
Within 5 seconds, turn the ignition switch to OFF then back to ACC position (enters diagnostic mode, 3 chimes for mode verification). The BCM will begin to flash DTCs 4 seconds after entering the diagnostic mode, from the programming mode.
History DTCs are those indicating that the BCM previously detected a fault which later disappeared.
If a visual physical check does not find the cause of the concern, the vehicle can be driven with a DVM connected to the suspected circuit. Remove steering gear outlet hose (should be the hose that goes from the rack to the reservoir #33) at fluid reservoir and plug the reservoir port . Turn wheels in both directions and verify that it is smooth, quiet, fluid at proper level, no leaks or bubbles. If the sensor seems to be ok, you may also need to test at the harness connector for proper lead conditions.
For the one lead connector at the head, place the red test lead on the connector terminal and the black test lead to a known good ground. The two lead connector at the water pump has a black (ground) lead and a PCM +5vdc power lead (probably yellow). OBD-I DTCs 14 and 15 or OBD-II DTCs P0117 and P0118 are typically associated with problems the PCM sees with the sensors or circuits. Footnote: If you ever have to test the IAT, it operates the same as the two lead coolant sensor. Diagnostic Trouble Code 43 (OBD-I) or P0332 (OBD-II) can result from a knock sensor circuit or sensor that is faulty. The sensor resides on the RH side (passenger) of the engine block, in the coolant drain location.
On the 1994-1997 LT1 F-body PCM, there is a replaceable module that receives the knock signal.
The LT4 module can be used on 1994-1997 engines (OBD-I and II) and no change of the knock sensor is needed (even though the sensors changed in 1996). With the connector off the knock sensor, check for 5v on the harness terminal with key ON. If all that is good, it might be a faultly knock module (in case of 94-97) or a problem with the computer, itself.
It is always a good idea to keep coolant away from the distributor (optispark) to avoid any potential problems when doing any of this work.
If you did the alternate flushing above and have removed the thermostat, you might want to fill the block with your coolant mix through the top of the water pump before placing the thermostat back in.
Block wheels and run engine in Park or Neutral with the radiator cap off until thermostat opens (you should see coolant circulating in the radiator tubes). With the engine running, add coolant to the radiator until the level is as high as you can get it.
If, after doing work, you want to verify the coolant level for a few days, check that the level is to the top of the radiator neck when the engine is cold. Electric cooling fans attached to the radiator keep the LT1 from overheating when there is little or no air passing through the radiator core (car going very slow or stopped and engine running). Fans will come on when field service mode is initiated and also when the SES lamp comes on.
With a scan tool, check to see what temp the PCM is seeing from the sensor in the water pump. While on the subject of thermostats, the LT1 reverse flow system uses a special, long thermostat that works together with the passages in the water pump to provide proper coolant routing. Check or replace the radiator cap (especially if you have heard lots of gurgling and overflow into the remote reservoir. The temp rating of the thermostat is merely at what temp it will begin to open and allow coolant flow. There is a fine line between between enough spark advance for high performance and the penalties for too much. The thermostat only has control of opening temp to allow coolant flow, after that it does nothing but cause a predetermined amount of restriction in the flow.
Something else to consider is that when the engine gets to ~220? (even before the stock fan ON temp of~226?) and you are at MAP loads of 70Kpa or more, the PCM begins to retard the timing.
Altering the fan ON temps can be done through reprogramming the computer or an aftermarket "fan switch" such as sold by SLP and JET . Do this when the engine is cool (like after sitting overnight or for several hours where there is no residual pressure in the system).
Stuff absorbent rags or towels all around the thermostat housing to catch any coolant when you take the housing loose. Put everything back together and put whatever amount of coolant you lost back into the remote reservoir. Zero lash is when you go from having slack between the lifter, pushrod and rocker arm, to the exact point of no slack. Too loose - the rocker arms will make noise from the slack and pushrods could be dislodged. There are several methods for setting the lash with the engine not running and are listed below.

If you have never had the crank hub off (or know for sure that it's orientation is correct), you can use the arrow that is on the balancer to tell you where you are.
Turn the engine in the normal direction of rotation until the exhaust lifter for the cylinder you are adjusting starts to move up (valve begins to open). Turn the engine over again until the intake lifter on the same cylinder comes all the way up (valve open) and then goes almost all the way back down (valve almost closed) . Now, adjust the rocker arm for the exhaust valve on that cylinder to zero lash and add your desired preload. Continue the above procedure for each cylinder until all valves are adjusted to the same amount of preload.
Here is something additional for those that use "poly locks" (typically used with roller rockers). Since the poly lock is not a prevailing torque fastener like the nut used with the stock rocker and ball arrangement, it spins freely on the rocker stud.
Another aid is to make a mark on the top of the nut so that you can easily see how far you have turned the nut.
Trouble codes 16, P0323 for low resolution or 32, P0372 for high resolution may lead you to this procedure. Remember, if the opti is never sending the signal to the PCM, the PCM will never send a signal to fire the coil or generate any injector pulses. Check for dc voltage with a digital meter at harness terminal "A" to ground and and also "D" to ground.
If you have good voltage, switch the meter to ac scale and connect test leads to terminal "B" and to ground. If you don't see the proper ac voltage the problem could be the optispark, the harness to the optispark, the PCM (not common) or any of the wiring in between.
If you have the means, looking at the low and high resolution signals from the opti to the PCM with an oscilloscope is probably the best way to tell their health. Use a multimeter to check the resistance of the pellet in the key and compare to the table above.
Getting to the coil and coil replacement is covered elsewhere in my Tech Pages, so I am not going to step through that procedure. On my 1995 Z, I used a very simple approach to creating some space between the coil bracket and the head.
The washers are used, because without the coil bracket sandwiched on the stud, the threads would bottom out in the head.
Once the washers are in place and the studs screwed back in, you can mount the coil on the outside of the stud nut, instead of the inside where it was before.
Another note: 1993 owners may have a bolt instead of a stud on the inboard side and others may have identical studs on both sides.
I am not the first one to do this and it could be done using other methods and materials (perhaps, even more effectively). Update: At least one person monitored the temperature of the ICM and the head after the mod. Record readings if you are searching for a bad cylinder and to be able to compare readings. If you have issues you need to track further, a leakdown test will be able to tell you whether rings, valves or head gasket might be leaking. Normal pressure when the engine is not running and lines have been pressurized is 41-47 psi.
To fully determine that you don't have a pressure drop off during actual WOT situations, you should tape the gauge to your windshield and take it for a test run. When you have a gauge connected and the pressure looks initially good and then bleeds off quickly when you shut the engine off, you can do a couple of tests to help you figure out where the pressure loss is.
What the factory manual says to temporarily install, is a set of "fuel line shut off adapters" (probably something the normal guy is not going to have available). You can do the same thing by pinching the flexible lines to shut them off, but risk breaking them. You can use the fuel pump prime connector for pressurizing the system (jumper 12v to it to run the pump).
If you can't tell a leaky injector from reading the plugs, you can look and see if injectors are leaking by removing the fuel rail screws and pull the rail and all the injectors up, so you can see under them.
If you are having a problem not related to the "normal" way the gauge acts as stated above, there are some things you can check.
Locate the pump electrical connector on the rear of the floor pan under the car (above the LH axle tube). To test back to the gauge, ground the purple wire on the body side of the connector back toward the gauge (key ON).
When installing a new IAC, you may move the pintle to match the measurement of the old one.
Note that the 1993 IAC has a square electrical connector and the valve screws into the throttle body, instead of being held on by screws like those of later years. An easy way to tell what part of the system may have trouble is to go to the vacuum check valve and test the lines back to the mode selector, intake manifold and to the vacuum tank.
A hand held vacuum pump (like a Mityvac), makes testing pretty easy (your lungs can be used as an alternate vacuum source ;-) or you can blow through the lines and listen for air escaping). Loosen adjuster plug lock nut (item 15-view A-A) and turn adjuster plug clockwise until it bottoms in the gear assembly (item 30), then back off 50? to 70? (approximately one flat). The back side of the hub area on the wheel has to be relieved a small amount to allow it to slip on. If you ever intend to rotate your tires, you will want to do this to all four wheels (The fronts will fit without any modification.
1993-1995 LT1 f-body cars have one cat, with the exception being California Emissions (RPO NB6) A4 cars having two. 1993 LT1 f-body cars can flash trouble codes by shorting 2 pins in the DLC and observing the Service Engine Soon lamp (like most earlier model GMs). The immobilizer is a theft deterrent system located in the instrument cluster, the main car computer, a radio frequency identification (RFID) transponder chip in the VW or Audi smart key, and an antenna at the ignition cylinder. When buying or programming a new key, you must use a key that corresponds to the same immobilizer generation and keyless entry type and sync it to the immobilizer.
The remote has 3 main components: the keyless entry circuit board, the metal flip key to open the doors and insert into the ignition, and the immobilizer chip which talks to the immobilizer. For generation specific information on keys including how to take them apart, refer to the links at the top or search this FAQ.
If you have the yellow car symbol pictured at the top on the instrument cluster, you have an immobilizer. Cabrio and Eurovans have no immobilizer warning light and the immobilizer module is a separate physical box from the instrument cluster. Because of the variation in build dates, immobilizer generations, and remote compatibility, the easiest way to get a replacement key is from the dealer.
The cheapest way to get a new key from the dealer is to buy a cut key from an online OEM parts dealership and take it to the local dealer for programming.
The absolute cheapest way to get a new key is to buy the programming tools yourself, buy a cut key online, and when you're done, resell the programming tools. NOTE: The newest keys 2007+ on most VW models and all 2010+ keys use additional encryption on the immobilizer chips.
Long story short, you have to bench flash the ECU with new programming to completely delete the immobilizer system. If you wish to remove the immobilizer function from the car you can only do this through a specialized chip tune.
More detailed information below is separated into immo-2 and immo-3 sections because they have different procedures. This exclusive content and the information below can be viewed in this post for premium members only.
How change battery toyota camry key fob ehow, A toyota camry can be opened with a regular door key or a smart key.

How replace fiat punto key battery ehow uk, How to replace a fiat punto headlight how to change brake pads on a fiat punto how to replace a car key battery how to replace a battery in a honda key. Needless to say, I took the later route, and I’m here to tell you it’s very easy to do – simply press in two tabs on the key, pop off the back cover, replace the battery, and then press the rear cover back into place. But the key also represents the modern electronics and the advanced equipment level of the Audi A5. The views and statements expressed in this blog are absolutely subjective and do not necessarily represent the views of my employer. In response, the Receiver will cycle the Door Lock Actuators to acknowledge that a transmission has been received. The first Transmitter Code programmed will always be in both memories until a second Transmitter is programmed within the same sequence.
If multiple vehicles are being programmed in close proximity simultaneously, it is possible that the same Transmitter could be trained to more than one Receiver. This will provide the extra coolant required to replace the air left in the system upon the first couple of thermocycles. This may be tricky if you have an electric pump because coolant may try to gush out-be careful.
You might have trouble identifying whether #1 or #6 is at TDC when the crank arrow is at 12 o'clock. The first thing that happens is as the cam turns, the optical section of the optispark picks up the signals by the rotation of the shutter wheel. This keeps other cylinders from building compression and affecting the cylinder under test. General specs are that the lowest cylinder not be less than 70% of the highest and no cylinder less than 100 psi. It may not display this or other websites correctly.You should upgrade or use an alternative browser.
When you turn the car on, the antenna around the ignition switch induces a voltage in the RFID transponder chip.
As of this writing, there are no aftermarket tools to program the immobilizer key yourself. This requires you to remove the ECU from the car and ship it to KermaTDI where it's bench flashed and rewritten. Try another key - you should have a valet key and spare key that also have an immobilizer chip in them. Check for error codes - scan the car with a VCDS to see if there is a problem with the system and refer to the appropriate procedure below. Disconnect the battery negative terminal and step on the brake pedal - this turns on the brake lights and discharges any stored electricity.
Check wiring and plugs at instrument cluster and pickup coil at the ignition switch, there is a chance it could be faulty. When two Transmitters are programmed, they must be programmed during the same program sequence, one after the other but not simultaneously. You should see between 1 and 4 volts ac (those are the pulses that trigger the coil to fire). When the key is recognized, the immobilizer module, part of the instrument cluster, sends a random number to the key.
If you can get the dealer to only charge a half hour for programming, that is the cheaper route. When seeking an immobilizer delete, make sure to include any requested ownership information to verify the status of the car. It also results in low cranking RPM during engine start - this will cause the ECU to prevent fueling. Many people report that the light just goes away after 10 minutes as if nothing ever happened.
You could try wiggling the key in the slot in case there's a problem with the pickup coil. The innovative key communicates electronically with the vehicle electrical system as soon as it is inserted into the cockpit. The Transmitter is manufactured with a permanent VAC combination (one of over 4 billion combinations) that cannot be changed for the life of the Transmitter.
The PCM processes the signals along with other sensor input and determines the proper time for the coil to fire. The module and key both do a simple calculation and if they match, normal engine starting is allowed.
Technically speaking, you can use a qualified locksmith as a result of a class action lawsuit about smart keys but these specialized shops are few and hard to find.
Again, there is NO battery for the immo chip, it gets power from the ignition switch transmitter. This and the next solution appear to have something to do with a capacitor discharge or something resetting. I've heard that disconnecting BOTH negative and positive terminals of the battery and then touching the cables to each other only, while not attached to the battery can also reset it. A pen would probably work if you’re in a pinch, but be careful not to do anything that would leave a mark or print on the key.Step 1 – Press in Tab Where Key collapsesStep 1 – Press in the tab located along the side of the battery where the key folds in using your small flat head screwdriver.
Pressing the key stops and starts the engine.The new key can also store important information, such as the cara€™s current mileage or warning messages from the Audi A5a€™s driver information system.
The PCM sends a signal to the Ignition Control Module (ICM) and it, in turn, causes the coil to fire. Due to the expensive equipment they have to rent from VW, they're usually not any cheaper than the dealership. I think that it takes more time and does the same thing as disconnecting the negative side and turning on the brake lights. You’ll want to press it hard enough that the back cover starts to pop out.Step 2 – Press in Tab on bottom of keyStep 2 – Press in the second tab, located on the bottom of the key. If it is not, the sensor is faulty or the sensor is not making good contact with the block. The spark from the coil travels through the coil wire back to the secondary ignition section of the optispark (cap and rotor), to be distributed to the proper cylinder.
His driving experience includes numerous track days throughout California, Nevada and Arizona. I replaced the battery, then as according to the handbook locked & unlocked the car with key to re-sync.
When i press the lock or unlock buttons, the red light doesn’t turn on, but when i put the key in the key place in the back seat, it starts blinking. Really prefer doing the one remote click to open just the driver’s door and hop straight in at night- seems safer and being able to get all the shopping out and not have to go and manually lock the driver’s door is life changing!!
If your steering wheel is locked then insert the key and try to turn the wheel, it will eventually budge. Comp told me that my battery on fob was low so I grabbed my other fob that had rarely been used. Still got that message ( I had both on me) I replaced both batteries and still get that message from time to time. My mechanic says my gearbox needs to be replaced but I don’t think that is the issue since my baby shifts like a dream. All DIYs and information on this site are for entertainment purposes only, perform at your own risk. All Rights Reserved  Send to Email Address Your Name Your Email Address Cancel Post was not sent - check your email addresses!

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Comments Car key battery replacement vw key

  1. Arzu_18
    Use his nails it does not have.
  2. faraon
    Own battery no matter where you can usually get 70% volts per cell, for a total.