dunit2350 Posted February 17, 2012 Share Posted February 17, 2012 I have a 2005 legacy gt, came home, ran inside for a couple of minutes, came back out, tried to start the car and it wouldnt start. The code ER Hc came up on the odometer and it still wont start. I've read a couple of things on here and not quite sure what could be the problem. Are the green connectors under the passnger area suppoosed to be connected or disconnected ( a little confused on this), they are currently disconnected. Any ideas on trouble shooting? Any help would be great. Link to comment Share on other sites More sharing options...
ibr_adam09 Posted February 17, 2012 Share Posted February 17, 2012 green connectors should never be connected unless your doing ecu flashing. is your check engine light on ? Link to comment Share on other sites More sharing options...
frank_ster Posted February 17, 2012 Share Posted February 17, 2012 or the large connector under hood next to turbo came open Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
Max Capacity Posted February 17, 2012 Share Posted February 17, 2012 or the large connector under hood next to turbo came open If not that, I'd pull the battery cable for 15 mintues and then try and start it again. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
dunit2350 Posted February 18, 2012 Author Share Posted February 18, 2012 It may be the connector under the hood next to the turbo... I had some work done to it in that area of the engine like a day before this happend. what should I be looking for? And I pulled the battery cable for a couple hours and nothing happend. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 18, 2012 Share Posted February 18, 2012 on the shock tower you'll see a big gray handle on the connector, unlock it, pull it apart and reconnect it and lock it. I'll send you a link to the service manual. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
GTTuner Posted February 18, 2012 Share Posted February 18, 2012 Inspect for bent, pushed out terminals. Read for codes also, could be a communication problem. Link to comment Share on other sites More sharing options...
GearOnePerformance Posted February 18, 2012 Share Posted February 18, 2012 If ER HC is displayed, there is a code stored in the BIU regarding an issue with the high speed CAN. Pull it and go from there. No sense in guessing what it MIGHT be. You will just be wasting your time. Link to comment Share on other sites More sharing options...
frank_ster Posted February 18, 2012 Share Posted February 18, 2012 The error hc is probably from that connector under hood if that connector is loose you won't be able to pull a code ! Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
StoplightAssassin Posted February 18, 2012 Share Posted February 18, 2012 Check the battery terminal connections as well....could be loose or corroded Link to comment Share on other sites More sharing options...
frank_ster Posted February 19, 2012 Share Posted February 19, 2012 Check the battery terminal connections as well....could be loose or corroded well dunno about that . if there is not enough power for the ecm to work the custer usually won't work either ! Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
StoplightAssassin Posted February 19, 2012 Share Posted February 19, 2012 I was getting that error when I had a loose connection on the negative terminal. I tightened it down and haven't seen it since. Link to comment Share on other sites More sharing options...
bmx045 Posted February 20, 2012 Share Posted February 20, 2012 the batt connection could be bad, but it could be good enough to power the ecu. once the key is turned and the starter pulls current the ecu looses connection and throws the er hc code. can also happen when the battery is starting to go south. Link to comment Share on other sites More sharing options...
dunit2350 Posted February 22, 2012 Author Share Posted February 22, 2012 I dont think its the battery... But the check engine light isnt on, just the AWD and the Oil light.. Link to comment Share on other sites More sharing options...
frank_ster Posted February 22, 2012 Share Posted February 22, 2012 that means the ecm does not have power check fuses all cars when ignition on engine off the check engine light comes on Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
dunit2350 Posted February 22, 2012 Author Share Posted February 22, 2012 I just pulled the codes, i got a p1717 and a p0817 Link to comment Share on other sites More sharing options...
dunit2350 Posted February 22, 2012 Author Share Posted February 22, 2012 p1718 not 1717 Link to comment Share on other sites More sharing options...
MrHellrais3R Posted February 23, 2012 Share Posted February 23, 2012 P1718: AT CAN Communication Circuit P0817: PN Signal Output Circuit Link to comment Share on other sites More sharing options...
PJBridge Posted July 1, 2012 Share Posted July 1, 2012 im having a similar issue but i got e1 ru, car kept dying, checked terminals on battery reconected now it starts but idles all weird and keeps stalling, cel is on and cruise control light flashes...? Link to comment Share on other sites More sharing options...
Max Capacity Posted July 1, 2012 Share Posted July 1, 2012 You need to have the codes read so we can help. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
frank_ster Posted July 1, 2012 Share Posted July 1, 2012 Some of those errors are due to the computer communication errors First thing to check is the large connector on the passenger side under the hood it has a lever on it open it and shove it back together. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
subi_life Posted December 10, 2015 Share Posted December 10, 2015 I'm having the same problem rite now!! Car won't even turn over but there's power and my coolint is all the way at the H and it's showing ER HC on top of the odometer, I Tried unhooking the battery. Then checked the fuses. Tried resetting it with my obd2 scanner . Still nothing.... I already set an appointment with a Subaru dealership on Friday but until then I would like to try and do it myself. I got some codes off my scanner they were P0817, P1718, C0119, C0140, C0111. Any help anybody??? Link to comment Share on other sites More sharing options...
ibr_adam09 Posted December 10, 2015 Share Posted December 10, 2015 Did you check the large wire harness under the hood by the passenger firewall area? Or the green connectors in the pass. foot well, under the carpet ? What where you doing before it did this ? Link to comment Share on other sites More sharing options...
BrianEarlSpilner Posted December 10, 2015 Share Posted December 10, 2015 How are your chassis grounds? There are 2 underneath and 2 more on a bracket on the back of the driver side tgv housing. Those can cause this err hc sypmtom. Other things to check as mentioned in the post is the wiring harness connector by the passenger shock, and all battery connections/leads Link to comment Share on other sites More sharing options...
silentsnow31802 Posted December 10, 2015 Share Posted December 10, 2015 I'm having the same problem rite now!! Car won't even turn over but there's power and my coolint is all the way at the H and it's showing ER HC on top of the odometer, I Tried unhooking the battery. Then checked the fuses. Tried resetting it with my obd2 scanner . Still nothing.... I already set an appointment with a Subaru dealership on Friday but until then I would like to try and do it myself. I got some codes off my scanner they were P0817, P1718, C0119, C0140, C0111. Any help anybody??? The only time I have seen my temp gauge spike and the ErHc code come up is when I am flashing the ECU. Were you messing with the ECU before this happened? Link to comment Share on other sites More sharing options...
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