Why does the Corolla Hybrid suddenly lose power?

1 Answers
LaCassidy
07/29/25 1:56pm
The reasons for the Corolla Hybrid suddenly losing power include power battery failure, wiring harness connection issues, and ECU control errors. Power Battery Failure: A faulty power battery can cause the vehicle to suddenly stall and lose power while driving. Solution: Check for battery swelling or broken circuits, and it is recommended to visit a 4S shop for diagnosis using a decoder. Wiring Harness Connection Issues: A broken wiring harness or connector can prevent signals from being sent to the ECU. Solution: Inspect the wiring connections one by one. ECU Control Error: The ECU is the brain of the vehicle, and a systemic failure can cause the entire control system to malfunction. Solution: Visit a 4S shop for troubleshooting.
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