Why won’t my Lexus CT 200h start or crank? This Lexus CT guide is based on 1 documented technical case, including 1 confirmed successful repair outcome. It summarizes the captured evidence without assuming every vehicle with a similar symptom has the same cause. Documented applicability includes 2013.
What Drivers or Technicians Reported
Documented complaints included: Vehicle was towed in for no crank/no start with MIL on and no ECM communication..
Fault Codes Seen in Supporting Cases
Codes included U0100. A code is a diagnostic clue, not automatic proof that a specific part failed.
Causes Confirmed in Documented Cases
Faulty Engine Room Junction Block with non-actuating integrated relays.
What the Diagnostic Process Found
Power missing at ECM pins 1 and 2 Power present at B2; integrated relays did not actuate
Repairs That Corrected Documented Cases
Replace Engine Room Junction Block
Lexus CT Diagnosis in Hickory, NC
Mich's Foreign Cars has served Hickory and the surrounding Western North Carolina area since 1983. We specialize in European and foreign vehicles and use professional diagnostic equipment to identify the cause before recommending repairs. If your Lexus CT is showing this symptom or fault pattern, call Mich's Foreign Cars at 828-324-6012 to schedule diagnosis.