Difference between revisions of "17072/P0688/001672"
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* Check Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271) | * Check Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271) | ||
* Check/Replace Engine Control Module (J220) | * Check/Replace Engine Control Module (J220) | ||
| + | |||
| + | ==== Special Notes ==== | ||
| + | * When found in a 2005 through 2007 2.5L NAR (North American Region) (1K) Jetta check the T121/62 (''Red/Black'') traced power wire to the ECM. If power is missing or a voltage drop is present that wire may be damaged anywhere between 6" and 18" from the connector itself. This will result in no communication in addition to a no-start. | ||
| + | ** Based on 2.5L Jetta feedback over the years a majority look like [http://wiki.ross-tech.com/wiki/images/4/48/Damaged_T121-62_2007_Jetta_2.5L_BGQ_ECM.jpg this example] however some are damaged further away per this example: [http://wiki.ross-tech.com/wiki/images/4/4c/Damaged_T121-62_2006_Jetta_2.5L_ECM.jpg with the close-up and distant views]. | ||
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Latest revision as of 17:45, 26 January 2017
17072/P0688/001672 - ECM Power Relay Load Circuit: (J271): Open Circuit
Possible Symptoms
- Engine Coolant Fan running at full Speed while Ignition is OFF and Engine is COLD (could lead to discharged Battery)
Possible Causes
- Fuse(s) faulty
- Power Supply Relay for Engine Control Module (J271) faulty
- Terminal 87 faulty/hanging
- 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)
- Check Wiring between Engine Control Module (J220) and Power Supply Relay for Engine Control Module (J271)
- Check/Replace Engine Control Module (J220)
Special Notes
- When found in a 2005 through 2007 2.5L NAR (North American Region) (1K) Jetta check the T121/62 (Red/Black) traced power wire to the ECM. If power is missing or a voltage drop is present that wire may be damaged anywhere between 6" and 18" from the connector itself. This will result in no communication in addition to a no-start.
- Based on 2.5L Jetta feedback over the years a majority look like this example however some are damaged further away per this example: with the close-up and distant views.
