Symptom: a 2004 Honda Accord 2.4 sedan, the owner reflects the car to open the door, the self-luminous instrument black screen. After the vehicle starts, the instrument still has no background light and any indication, and the shift lever can only be in the P position, can not change to other gears.
Honda Accord sedan meter fuse is often blown
Honda Accord sedan meter fuse is often blown
Click here to view all news photos
    Check the analysis: According to the user's description, this is the first time the instrument black screen failure. Maintenance personnel first search instrument fuse, found in the driver side of the multi-channel control box No. 21 meter 7.5A fuse blown, replace it, the instrument instructions return to normal, shift lever can also be linked to the corresponding gear. However, maintenance personnel know that the normal case of the fuse is not easily burned, only the instrument-related circuits in the presence of short circuit or electrical equipment current is too large, will fuse failure. So the maintenance personnel to check and instrument related to all the electrical equipment, and Honda fault detector HDS check instrument control unit, all normal, that this is an occasional fault, and the owner of an emergency car, this delivery.
    3 months later, the car again came to the store to repair the fault. Owners said that a month ago and two days ago, 21 fuse and burned 2 times, as with the first case, the owner on their own to find a repair shop to burn the fuse replaced, the solution of the urgent needs The But the same failure occurred three times, the owner determined to completely solve the problem. Maintenance personnel once again asked the situation when the failure occurred, the owner recalled an important detail, that is, when the failure occurred in the block. According to this clue, maintenance personnel to analyze the hanging D block to go through the R block and N gear, will not be the gear switch problem? Try to replace the gear switch, and then try to take the bumpy road and back and forth shift lever ,everything is normal.
    The next day and then test, hanging D block only heard "pop" sound, fault to reproduce. Because the shift lever when the shift is slow, obviously feel the fault is in the R gear when the occurrence occurs. Do not move the vehicle, and then put on a good fuse, the vehicle and all normal, it seems that the problem lies in the R-related lines and components. Maintenance staff was about to check the R-related lines and components, a colleague said, "is not a reversing radar is broken," the words awakened. Which the original models and no reversing radar, and this car is now the reversing radar is the owner of the installation. Because the installation of the parking sensor is a set of independent systems, and the line is not complicated, in the principle of simplicity, first check its line, and sure enough to find the problem.