P0C40 LEXUS - DC/DC Converter Temperature Sensor 'B' High
P0C40 LEXUS Possible Causes
- Faulty Inverter with converter assembly
First diagnose P0C40 LEXUS code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P0C40 LEXUS code
Labor: 1.0The cost of diagnosing the P0C40 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P0C40 LEXUS Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0c40 Lexus DescriptionThe MG ECU detects the temperature of the boost converter using the temperature sensor built into the boost converter. The boost converter using the temperature sensor outputs voltage which changes between 0.5 and 4.5 V in response to a change in temperature. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limit load based on signals sent from the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.
P0C40 LEXUS More InformationNeed more information on how to fix the P0C40 LEXUS code?
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