Coolant Sensor High Voltage

***ohiocivicracer*** · 10-25-2007, 08:46 AM

Soo my MIL is on and i have a ODBII and i read the code, it is a Coolant sensor high voltage circuit or something, not sure now... i took the car up to honda, the call right at 8 and wake me up to tell me they still wanna run their ODBII scan which is 90 bucks because my car has 38,000 miles on it. then they said the warenty would have already been voided because i connected the ODB up already... WTF any ideas what that code means anyways?

Agnt004 · 10-25-2007, 09:49 AM

Running a code will not void your warranty. The dealer you took it to is a crappy dealer if they told you that. Take it to another dealer and have them run the code under warranty.

mrbill · 10-25-2007, 10:20 AM

What's your actual mileage?

The class action lawsuit extended warranty by 5%. See http://www.hondaodometerclassaction.com/ .

That's 37,800 miles. If you are within a few hundred miles of out of warranty, *that's* what good will should be used for.

-mr. bill

***ohiocivicracer*** · 10-25-2007, 12:50 PM

im past that... any ideas what that code means?

mrbill · 10-25-2007, 01:54 PM

Yeah. Best case you have a bad connection, probably ECT Sensor 1.

Check the connections of ECT Sensor 1. That'll be right next to the intake you installed. If the connection is bad, fix it. If the connections are good, check the readings with your scan tool for the sensor. If they are in range, goto ECT Sensor 2 (on the radiator) and check connections, fix if necessary, check range.

If all is well, you had an intermittent problem. If either sensor is out of range, replace.

When did you install the intake? You might be seeing the problem now because of the colder weather.

-mr. bill

***ohiocivicracer*** · 10-25-2007, 03:21 PM

intake was installed during last winter...

mrbill · 10-25-2007, 04:21 PM

Last winter ran from December 21st through March 21st. World's longest install.

If I were to put odds, it's on the connection to ECT1. Since you don't remember which code you pulled (or if you had BOTH codes) that's where you should start.

-mr. bill

10-25-2007, 08:46 AM	#1 (permalink)
*ohiocivicracer* The Orignal CivicPC Join Date: Aug 2006 Location: Mentor, Ohio Age: 21 Posts: 1,263 Kevin iTrader: 3 / 100%	Coolant Sensor High Voltage Soo my MIL is on and i have a ODBII and i read the code, it is a Coolant sensor high voltage circuit or something, not sure now... i took the car up to honda, the call right at 8 and wake me up to tell me they still wanna run their ODBII scan which is 90 bucks because my car has 38,000 miles on it. then they said the warenty would have already been voided because i connected the ODB up already... WTF any ideas what that code means anyways? __________________ FIJI Crew # 3 The Original 8thCivicPC

10-25-2007, 12:50 PM	#4 (permalink)
*ohiocivicracer* The Orignal CivicPC Join Date: Aug 2006 Location: Mentor, Ohio Age: 21 Posts: 1,263 Kevin iTrader: 3 / 100%	im past that... any ideas what that code means? __________________ FIJI Crew # 3 The Original 8thCivicPC

10-25-2007, 03:21 PM	#6 (permalink)
*ohiocivicracer* The Orignal CivicPC Join Date: Aug 2006 Location: Mentor, Ohio Age: 21 Posts: 1,263 Kevin iTrader: 3 / 100%	intake was installed during last winter... __________________ FIJI Crew # 3 The Original 8thCivicPC

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10-25-2007, 09:49 AM	#2 (permalink)
Agnt004 Senior Member Join Date: May 2007 Location: South Florida Age: 22 Posts: 1,490 Greg iTrader: 4 / 100%	Running a code will not void your warranty. The dealer you took it to is a crappy dealer if they told you that. Take it to another dealer and have them run the code under warranty.

10-25-2007, 10:20 AM	#3 (permalink)
mrbill Senior Member Join Date: Nov 2005 Location: MA Posts: 406 iTrader: 1 / 100%	What's your actual mileage? The class action lawsuit extended warranty by 5%. See http://www.hondaodometerclassaction.com/ . That's 37,800 miles. If you are within a few hundred miles of out of warranty, that's what good will should be used for. -mr. bill

10-25-2007, 01:54 PM	#5 (permalink)
mrbill Senior Member Join Date: Nov 2005 Location: MA Posts: 406 iTrader: 1 / 100%	Yeah. Best case you have a bad connection, probably ECT Sensor 1. Check the connections of ECT Sensor 1. That'll be right next to the intake you installed. If the connection is bad, fix it. If the connections are good, check the readings with your scan tool for the sensor. If they are in range, goto ECT Sensor 2 (on the radiator) and check connections, fix if necessary, check range. If all is well, you had an intermittent problem. If either sensor is out of range, replace. When did you install the intake? You might be seeing the problem now because of the colder weather. -mr. bill

10-25-2007, 04:21 PM	#7 (permalink)
mrbill Senior Member Join Date: Nov 2005 Location: MA Posts: 406 iTrader: 1 / 100%	Last winter ran from December 21st through March 21st. World's longest install. If I were to put odds, it's on the connection to ECT1. Since you don't remember which code you pulled (or if you had BOTH codes) that's where you should start. -mr. bill