- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Question edited for clarity.
Question moved to model category
Well the first thing that leapt of the page was that you said you had two batteries and you undid the clamps to both, but then I realised to meant you undid both clamps to one battery. That is actually the worst thing to do because now you have to reset the security system and engine immobilizer.
Make sure your battery clamps and posts are cleaned with a wire brush, wipe with Vaseline or Dielectric Grease and then make sure the clamps are tight. Then put the battery on to charge. This says you have low voltage.
DTC P0480 registers when the PCM doesn't receive the proper amount of voltage from the cooling fan control circuit that should indicate that the fan works properly. This code can be caused by a faulty cooling fan relay, a bad cooling fan, damaged wiring, or a bad coolant temperature sensor. Jan 19, 2024
JustAnswerhttps://www.justanswer.com > Chevrolet Repair
May 6, 2010 - P0480 is for the low speed cooling fan relay control circuit. · A short to ground · DTC P0480 Cooling Fan Relay 1 Control Circuit · The ignition is ...
1 answer · Top answer: DTC P0480 or P0481 Circuit Description • P0480 is for the low speed cooling fan relay ...
JustAnswerhttps://www.justanswer.com > Chevrolet Repair
Dec 2, 2011 - 2006 chevy: v..it Everything is fine but check engine code p0480 comes... · FC relay connector is damaged (check pins for damage, and for moisture) ...
1 answer · Top answer: Here is a picture of relay you need to replace so start with that..If code comes back on ...
YourMechanichttps://www.yourmechanic.com > Articles
P0480 is a general OBD2 trouble code that refers to the a malfunction within the cooling fan control circuit. This code is similar to P0481 and P0482 codes.
Under normal operation, in low speed, only the LH fan is initially in operation. Voltage is supplied to the low speed cooling fan relay through circuit 60 BK/LG wire. When the relay is energized, voltage fed to the LH cooling fan motor through circuit 538 GY/RD wire. Ground for the cooling fan is through circuit 57 BK wire. After the LH fan has been energized for 5 -10 seconds the RH fan will start automatically. Voltage is applied to the RH fan motor through circuit 3829 LB/BK wire. BK wire circuit 57 is also the ground.
Under normal operation in high speed both fans should operate from the high speed cooling fan getting a command voltage on circuit 30 BK/LG wire. The relay energizes both fans through circuit229 RD/OG wire while the low speed fan relays are de-energized.
The fans will come on immediately when the airconditioning compressor clutch is engaged mode and when the vehicle is in Drive. OBD-II trouble codes are P0480 low fan 1circuit, P0481 hi fan circuit & P0482 medium fan circuit.
Only the computer can clear history codes . If the problem was fixed in about 100 ignition cycles the computer will clear this codes . Code reader . will it check Codes in the EBCM - electronic brake control module ? ABS DTC'S
If its an OBDII code than you will need a code reader to clear it.
If it is a manufacturer specific code you will need a high end scan tool to clear it.
If there is a problem and it is current it won't matter if you clear the code the check engine light will come right back on.
Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!
The thermostat circuit that controls the on/off cycles of the radiator fan motor is not working properly in that its performance is, at best, erratic. But the car is not overheating which is a plus. Will not harm car and in cold weather it will take it a tad longer for the engine to reach full operating temperature.
was there a code logged with the cooling problem?,this seems to be the fail safe for that code,usually fans only lock on if there are numerous codes and it often indicates a 'limp home' mode that the system goes into,generally it will restrict transmission shifts also.Have you tried to have the fault codes cleared?They may come back but it will indicate if fans are on due to them.
When you get that code it means that the computer isn't detecting the
relay kicking in and starting the cooling fan. In most cases replacing
the relay for the fan will cure that problem and you can erase the code
with scanner once the problem is repaired P1490 Low Speed Fan CTRL Relay Circuit - you need to
check and make sure the cooling fan is coming on when it suppose to.
Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.
1.Turn key to on position but do not start engine.
2.Press warmer and off button at same time until screen changes.
3.Press " FAN LOW " until ACM appears.
4.Press " FAN HI " until ACM codes appears.
5.Press " FAN LOW " until clear ACM codes appears.
6.Press " FAN HI " until codes clear is on the screen.
If all is in order the compressor should come on at this point when engine is started. I have never tried this but found information in trouble shoot guide for 1998 Deville Cadillacs. Hope it works for you. Good luck.
×