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P0505 Diagnostic Trouble Code Discussion for February 2012

Idle Air Control Motor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0505
Help Request Posted
1996 Mercedes-Benz E320 3.2L MIL Lamp on VIN: WDBJF55F2T
P0505: ISC Malfunction. ... with the two codes listed. I'm leaning towards a bad throttle actuator, but I'm only basing that on searching these archives. Can't really find any repair info on these codes (Mitchell or Alldata). Mitchell does have Electronic Acceleration System tests li...
February 02, 2012
1999 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GW58SXX
P0505: Idle Air Control Motor Circuit Malfunction. ... any help you may be able to offer. I have a 1999 Jeep Grand Cherokee, 4.0L that is kicking my butt. The rest of the shop has worked on it now it is my turn. I have gone through all of the diagnostics again, to make sure somebody didn't miss something. Vehi...
February 15, 2012