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== P06A3/001699 - Sensor Reference Voltage D: Too Low == ==== Possible Symptoms ==== * Malfunction Indicator Light (MIL) active * Poor engine performance ==== Possible Causes ==== * Low ECM voltage to ECM * Faulty wiring on Sensor Reference Voltage "D" Circuit * Faulty sensor or component on Sensor Reference Voltage "D" Circuit * Faulty ECM ==== Possible Solutions ==== * Verify ALL Powers and Grounds for the ECM * Check wiring on Sensor Reference Voltage "D" Circuit * Check sensors and components on the Sensor Reference Voltage "D" Circuit * Check wiring at the ECM with all components removed from the Circuit to verify the reference voltage is present. ==== Special Notes ==== * See this Ross-Tech forum post, when found in vehicles with the CBEA/CJAA 2.0l CR-TDI engines ** https://forums.ross-tech.com/index.php?threads/33187/#post-280391 __FORCETOC__ [[Category:Fault Codes]]

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