P0A94 Code - DC/DC Converter Performance
|P0A94 code possible causes
- Faulty Inverter With Converter Assembly
- Inverter With Converter Assembly harness is open or shorted
- Inverter With Converter Assembly circuit poor electrical connection
|How do I fix the P0A94 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 P0A94 code
Labor: 1.0The cost of diagnosing the P0A94 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|What are P0A94 code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
|P0A94 code descriptionThe boost converter contains a booster IPM (Intelligent Power Module), which includes an IGBT (Insulated Gate Bipolar Transistor) and a reactor. The HV control ECU actuates the IGBT, which controls the current in the reactor.
The boost converter boosts the high-voltage direct current rated at 201.6 V to an approximate direct current voltage of 500 V. The inverter converts the voltage that has been boosted by the boost converter into alternating current, which is used for driving the MG1/MG2. When the MG1/MG2 operates as a generator, the alternating current of approximately 500 V from the MG1/MG2 is converted into direct current by the inverter.
Then, the boost converter drops this voltage to a direct current voltage rated at 201.6 V in order to charge the HV battery.
The HV control ECU uses a voltage sensor that is built into the boost converter to detect the high voltage (VL) before it is boosted. Also, it uses a voltage sensor that is built into the inverter to detect the high voltage (VH) after it has been boosted.
Based on the voltage before and after it has been boosted, the HV control ECU boosts it to a target voltage by controlling the operation of the boost converter.
|Need more information with the P0A94 code?Need more information on how to fix the P0A94 code?
Get Access to Factory Service Manuals
|P0A94 code information for specific makes
|Need help with a P0A94 code?Get the P0a94 code diagnosed by a professional: Find a repair shop in your area
|P0A94 code commentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0a94 code? Have you replaced any parts?
Any information is appreciated. Thanks