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  1. Technical Background. The motronic engine control module power supply relay, J271, is not functioning properly. Because the J271 relay controls battery voltage (Terminal 30) via a ground signal sent from the ECM, numerous faults can occur in multiple control modules when it is not functioning properly.

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  2. Apr 11, 2021 · So, here's what I think: J623, the ECM, sends power (red/green) to SB28, which sends power to J271 terminal 86, and all those engine components listed above. From this TSB, "the J271 relay controls battery voltage (Terminal 30) via a ground signal sent from the ECM."

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  4. Dec 20, 2022 · De-Energized Performance - Too Early. I have been trying to locate J271, which I believe is the power relay in question. The way I am looking at it, if it had been the battery, then it would not have started after multiple tries. I am thinking the relay may be flawed and would like to change it out while I wait

  5. 17070/P0686/001670 - ECM Power Relay Control Circuit (J271): Short to Ground Possible Causes. Power Supply Relay for Engine Control Module (J271) faulty; Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271) faulty; Possible Solutions. Check/Replace Power Supply Relay for Engine Control Module (J271)

  6. Sep 23, 2004 · The motronic Engine Control Module (ECM) power supply relay -J271- supplies voltage to the ignition coils with power output stages and the Engine Control Module (ECM) at pin 121. Disconnect voltage supply relay -2- below left cover at bulkhead. Check fuse S10 (in fuse holder, position 10).

  7. Check Wiring and/or Connector(s) from/to Power Supply Relay (J271/J317) Check/Replace Power Supply Relay (J271/J317) Special Notes. A weak Battery may set this fault code. Insure the Battery voltage is at least 11.5v. 2009-2014 Audi vehicles with no start issues, please see TSB 97-14-2 or TPI 2036764 for possible updated J271 relay.

  8. Volkswagen Workshop Service and Repair Manuals Golf GL L4-20L (AZG) (2001) - Find the location of J271, the Motronic Engine Control Module (ECM) Power Supply Relay, in the Relays and Modules - Fuel Delivery and Air Induction section Get detailed component information and instructions to diagnose and repair your vehicle Read the free online auto ...

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