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__FORCETOC__ 17035/P0651/001617 - Sensor Reference Voltage "B" Circuit/Open ==== Possible Symptoms ==== * Malfunction Indicator Light (MIL) active * Poor engine performance ==== Possible Causes ==== * Faulty wiring on Sensor Reference Voltage "B" Circuit * Faulty sensor or component on Sensor Reference Voltage "B" Circuit * Faulty ECM ==== Possible Solutions ==== * Check wiring on Sensor Reference Voltage "B" Circuit * Check sensors and components on the Sensor Reference Voltage "B" Circuit * Check wiring at the ECM with all components removed from the Circuit to verify the reference voltage is present. ** If the ECM is NOT producing the needed voltage and all powers/grounds going to it are OK, replace ECM. ==== Special Notes ==== *When found in any Golf (1K/5K/AJ) based VW model with a 2nd Gen (2008.5 - 2014 model year) timing chain driven 2.0TSI Gasoline engine, the Sensor Reference Voltage "B" Circuit ''should be'' found on terminal T60/29 which powers G40, G247 and G609 (when installed). [[Category:Fault Codes]]

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