17035/P0651/001617 - Ross-Tech Wiki

Table Of Contents

• 1. 17035/P0651/001617 - Sensor Reference Voltage "B" Circuit/Open
  • 1.1.1 Possible Symptoms
  • 1.2.1 Possible Causes
  • 1.3.1 Possible Solutions
  • 1.4.1 Special Notes

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).
• When found in Golf (1K/5K/AJ) based VW models such as a 2013 NMS Passat with CBUA 2.5L Gasoline engine, the Sensor Reference Voltage "B" Circuit should be found on terminal T60/44 labeled "5V2" which powers G40, G271 and G609.

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