Suzuki Splash Battery Sensor Issue Causes Starting Woes

Having dealt with almost identical symptoms on my 2012 Suzuki Swift diesel, I can share some relevant experience as a hobby mechanic who does basic maintenance. The symptoms you describe match exactly what I encountered, slow cranking and flickering lights despite a healthy battery. After proper battery testing showed normal voltage levels, my workshop diagnosed a faulty voltage sensor that was sending incorrect signals to the car's electrical system. The repair involved: Complete battery testing sequence, Voltage sensor replacement, System recalibration, New wiring for the sensor connection Total cost was 315€ including parts and labor. Since the fix, starting performance returned to normal and the electrical system has been stable. Before you head to a workshop, could you share: How old is your current battery? Does the problem occur more during cold starts? Are there any warning lights on the dashboard? Have you noticed any correlation with specific weather conditions? This information would help determine if your issue is identical to what I experienced with the battery charge monitoring system.

The repair fixed all symptoms, with no reoccurrence after 3500km driven since the work was completed last month. Good to know this seems to be a known issue. Latest service was done at 145000km where they also checked all electrical connections. The mechanic showed me clear signs of battery sensor corrosion during vehicle diagnostics. Make sure they specifically check the connection points when testing yours, low voltage readings can be misleading if the sensor has degraded contact surfaces.

Thanks for the update on your Suzuki repair. The corrosion findings match exactly what I discovered with my Swift. When my mechanic performed the vehicle diagnostics, the corroded sensor contacts were causing inconsistent low voltage readings, very similar to your case. After 4000km of driving since my repair, the starting and electrical systems have remained stable. The workshop found that careful cleaning of the car battery connection points was crucial before installing the new voltage sensor to prevent future corrosion issues. One additional note about my repair, the mechanic installed a protective coating on the new battery sensor connections as a preventive measure. This might be worth asking about if anyone else faces similar symptoms, as it seems to help maintain proper contact and prevent future corrosion. The total investment in thorough diagnosis and preventive measures has definitely paid off in terms of reliability. Regular battery testing and keeping those sensor contacts clean has become part of my maintenance routine now.

Thank you for sharing those details about your repair experience. After putting another 3500km on my Suzuki since having the battery sensor and connections replaced, I can confirm the slow cranking and electrical issues are completely resolved. My car had accumulated 145000km when the latest service revealed the corroded sensor contacts during vehicle diagnostics. The mechanic made the right call focusing on the connection points, as the misleading voltage readings were indeed caused by degraded contact surfaces affecting the battery health monitoring system. For others dealing with similar symptoms, make sure your workshop specifically examines these sensor connections during battery testing. Getting a proper diagnosis saved me from unnecessarily replacing a healthy battery. The thorough cleaning and replacement of corroded components restored proper function to my car's electrical system. Looking back, the vehicle diagnostics pointing to the battery sensor as the root cause was spot on. Having verified the fix through several thousand kilometers of trouble-free operation, I can confidently say addressing sensor corrosion resolved all the starting and electrical stability issues.