P0652 HYUNDAI - Sensor Reference Voltage 'B' Circuit Low
- Faulty Engine Control Module (ECM)
- ECM harness is open or shorted
- ECM circuit poor electrical connection
- Shorted sensor on 5 volt circuit
When is the code detected?The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected
- Engine Light ON (or Service Engine Soon Warning Light)
P0652 Hyundai DescriptionThe control module has 2 internal 5-volt reference buses called 5-volt reference 1 and 5-volt reference 2 . Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.
Need more help?Get the P0652 Hyundai code diagnosed by a professional: Find a repair shop in your area
P0652 HYUNDAI CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0652 Hyundai code? Have you replaced any parts?
Any information is appreciated. Thanks