P0117 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


OBD-II Trouble Shooting Got a code reader? Find out what your GM car's Check Engine light is trying to tell you (and then turn Check Engine light off).

 
 
 
 
Thread Tools Search this Thread
Old 09-24-2009, 04:28 PM   #1
Retired Senior Admin

Expert Gearhead
Thread Starter
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default P0117

P0117

Description
ECT SENSOR CIRCUIT LOW VOLTAGE

Engine Coolant Temperature (ECT) sensor is a thermistor that
varies resistance based on temperature. As temperature of sensor
increases, resistance decreases. Low temperature will result in a high
signal voltage. DTC will set when PCM sees an excessively high ECT
sensor voltage signal.

Potential Symptoms
  • Very poor fuel economy
  • Engine wont start
  • Engine may start, but run very poorly, blowing black smoke, running very rough and misfiring
  • SES light
Causes
  • Corroded connection at the sensor
  • Brake in the ground wire between sensor and PCM
  • A short in the wire between the sensor and the PCM
  • Defective ECT sensor
Possible Solutions
Danthurs is offline  
 
 
 

Related Topics
Thread Thread Starter Forum Replies Last Post
Trouble w/my 1995 SSE, it has a P0117 code UPDATE it's back whitecrystal1 1992-1999 12 05-05-2007 12:37 AM


Tags
obd2, obdii, p0117, p117

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:03 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.