White Cat Displays Severe Powertrain Malfunction
3 Answers
White Cat displays powertrain malfunction for the following reasons: 1. Incorrect ignition timing: Premature ignition causing early combustion and detonation of the air-fuel mixture; due to ignition system failure, resulting in spark plug misfire or weak spark. 2. Cylinder compression pressure: Severe wear of pistons, piston rings, and cylinders increases the clearance between them, reducing sealing performance, leading to cylinder head leakage and decreased compression pressure; poor sealing of the crankcase reduces suction due to air leakage. 3. Other reasons: Check if the air filter is clogged and clean it if necessary; check throttle opening—when the accelerator pedal is fully depressed, the throttle should be fully open.
That time when I encountered a severe powertrain malfunction alarm while driving my White Cat was really scary. Although the speed wasn't high, suddenly the dashboard flashed red warning lights and the car jerked violently. I suspected it might be a battery issue or motor controller failure, so I quickly pulled over and tried restarting the car. After restarting, the warning lights remained on, so I didn't dare continue driving to avoid the risk of breaking down midway. I contacted the 4S store for rescue service, and after towing it for repairs, they found it was a short circuit in the high-voltage battery module. It took two or three days to replace the new component. Since then, I've developed the habit of not letting the battery drain to zero during charging, and I make regular maintenance check-ups to prevent potential issues.
Don't ignore warning alerts while driving. When the powertrain malfunction indicator appears, safely pull over, turn off the engine, and check for any abnormalities around. Try restarting once to see if the light goes off. If it remains, don't risk driving further; contact a professional repair shop for towing and diagnosis. Possible causes could be battery aging or software bugs. Technicians will use diagnostic tools to read trouble codes and identify the issue. For daily EV use, avoid prolonged fast charging or deep discharging, as proper maintenance can prevent many problems.
