How to Solve Abnormal Speed Signal in Auman Trucks?
3 Answers
You can inspect the vehicle speed sensor and its wiring harness. The speed sensor is usually installed on the transmission housing. Check for issues such as loose or corroded connectors, broken wires, etc. Perform repairs or replacements. You can also visit an auto repair shop to have a technician resolve the issue.
My Auman truck also had abnormal speed signal issues before, with the speedometer fluctuating up and down. As a long-haul driver, experience tells me this is usually a minor problem. After you park, first check the wheel speed sensor position—it's usually located at the drive shaft or wheel hub, where it’s prone to getting muddy or loose. Clean it thoroughly with a cloth and plug it back in securely, then restart and test. If that doesn’t work, check the related fuses in the fuse box—replace any that are blown. Remember, safety first—driving with inaccurate speed readings is extremely dangerous, increasing the risk of accidents or incorrect fuel consumption. If the issue persists, find a reliable repair shop to scan for trouble codes with a diagnostic tool—it could be a broken wire or faulty sensor, and replacements aren’t expensive. Auman parts are easy to find, so don’t delay repairs and affect your work. I always prioritize regular maintenance to avoid such hassles.
I specialize in repairing trucks and have dealt with numerous cases of FAWMAN speed signal failures. Typically, the first step is to inspect the speed sensor, which is prone to getting dirty or loose in the rear wheel area. After removing, cleaning, and reinstalling it, check the voltage—if it's normal, the issue is resolved. Poor wiring connections or short circuits are also common problems; use a multimeter to check the wiring harness for wear or breaks. If a fuse is blown, locate and replace the corresponding one in the vehicle's fuse box. Instrument cluster issues are relatively rare; it's best to use an OBD tool to read codes for accurate diagnosis rather than guessing. Most cases can be fixed simply within one or two work hours. Regular maintenance of the sensor location is recommended to prevent mud and water ingress. If abnormalities are noticed while driving, slow down immediately and inspect to avoid damaging the ECU or drivetrain.
