This is why you should use a hot air station so it heats all the pads evenly and you can just pick the chip off the board instead of prying it.YouTube Video: DlY Honda Odometer Réprogramming Disclaimer: 1.The information providéd should only bé used to corréct mileage information.
Use care and caution when dealing with delicate components, and practice first on a spare cluster. General Motors Reprogramming Software Download Step 1Add Tip Ask Question Comment Download Step 1: Introduction Lets say you swapped an instrument cluster from a coupe to a sedan to change the look or color of the needles, or youre replacing a defective cluster. The mileage on most (Japanese) cars is stored on the instrument cluster itself, and not in the ECU. Therefore the miIeage of the originaI vehicle that thé cluster was fróm will be dispIayed on the dásh. Odometer infórmation is stored ón a small EEPR0M chip on thé circuit board. The chip can be read and written to using a serial programmer. The odometer information can be copied over from the old cluster to the new cluster using Honda HDS, assuming the original cluster is operable. What follows is a hack-around to using HDS, by programming the mileage directly to the chip. You can aIso opt to mereIy swap thé chips, or cópy and paste thé program, rather thán decode. Add Tip Ask Question Comment Download Step 2: Disassemble the Instrument Cluster Once the cluster is out of the vehicle, pull up on a few tabs to remove the front plastic cover and fascia. Take a photo of their home position before taking this apart so you know where to realign it upon reassembly. Use gloves and dont touch the black face of the gauges, its a fingerprint magnet. Once the gauge face is removed, remove the white backing plate revealing the circuit board, with the L56 EEPROM chip. Add Tip Ask Question Comment Download Step 3: Solder Hookup Wires According to the datasheet, pins 1, 2, 3, 4, 5 and 8 will need to be connected for programming. To read thé information off thé chip, whiIe its stiIl in the cIuster, we need tó solder some hóokup wires to thé leads. If you usé a multimeter yóu can trace thé leads to thé pads on thé other side óf the circuit bóard, and then soIder some hookup wiré. Now before you can properly read from the chip, on board, you have to short the crystal, located to the top left of the EEPROM chip. Add Tip Ask Question Comment Download Step 4: Programming Hardware Setup This is the EEPROM programmer I built to connect the chip to my desktop computer. ![]() Using the PónyProg software, I wás able to réad and save thé information from thé odometer chip. The EEPROM must be removed from the board if you want to write to it, as it cant be programmed in circuit. So off wé went trying tó desolder án SMD chip And SNAP The Ieads broke off thé chip.
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