fan running
Thread Starter
Intermediate
Joined: Jun 2010
Posts: 40
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fan running
Good friends, I need your help, because here in Spain do not have enough information, I have a Corvette C4 of 94, I checked the computer and gives me two codes, code 14 and code 15.
The main problem is that since we started the car, the fan starts.
Someone tell me how I can solve the problem of errors 14 and 15, and the fan stays on forever.
Thanks Thanks to all
The main problem is that since we started the car, the fan starts.
Someone tell me how I can solve the problem of errors 14 and 15, and the fan stays on forever.
Thanks Thanks to all
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Does the engine run right other than the fans being on?
DTC #14: Engine Coolant Temperature Sensor Circuit Voltage Low.
DTC #15: Engine Coolant Temperature Sensor Circuit Voltage High.
The fans are running because computer is not seeing correct ( or any ) signal from the CTS (Coolant Temperature Sensor ) that tells the computer what the engine temp is
If computer does not see signal from CTS it automatically runs the fans full time to prevent engine overheating
As the CTS is a major sensor for engine operation if the computer is not getting correct signal from it ; it usually puts the engine into " Limp home" mode were the engine runs but not correctly
For starters, check wiring to sensor; may have bad / no connection.
If you can't find a fault with wiring ,replace your coolant temperature sensor
http://cgi.ebay.com/ebaymotors/85-97...Q5fAccessories
Save this code listing for reference
http://www.corvetteflorida.com/forum...read.php?t=981
DTC #14: Engine Coolant Temperature Sensor Circuit Voltage Low.
DTC #15: Engine Coolant Temperature Sensor Circuit Voltage High.
The fans are running because computer is not seeing correct ( or any ) signal from the CTS (Coolant Temperature Sensor ) that tells the computer what the engine temp is
If computer does not see signal from CTS it automatically runs the fans full time to prevent engine overheating
As the CTS is a major sensor for engine operation if the computer is not getting correct signal from it ; it usually puts the engine into " Limp home" mode were the engine runs but not correctly
For starters, check wiring to sensor; may have bad / no connection.
If you can't find a fault with wiring ,replace your coolant temperature sensor
http://cgi.ebay.com/ebaymotors/85-97...Q5fAccessories
Save this code listing for reference
http://www.corvetteflorida.com/forum...read.php?t=981
Last edited by rodj; Nov 7, 2010 at 07:10 AM.
Thread Starter
Intermediate
Joined: Jun 2010
Posts: 40
Likes: 0
thanks for the reply, then we can say is started by a bad sensor reading it?
What we have done was take all the sensors and the fans keep running ... this is so?
Thanks again and sorry for my English is a translator: P
What we have done was take all the sensors and the fans keep running ... this is so?
Thanks again and sorry for my English is a translator: P
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
