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
I have a 2005 Chevy Equinox and the check engine light is ...
JustAnswer
https://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 ...
v..it Everything is fine but check engine code p0480 comes
JustAnswer
https://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 ...
P0480 OBD-II Trouble Code: Cooling Fan 1 Control Circuit ...
YourMechanic
https://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.
PLEASE HELP!!!!! ' Page 2 ' GMC Terrain, Equinox, and SRX ...
terrainforum.net
https://www.terrainforum.net > threads > page-2
Sep 8, 2020 - Haynes manual says test fan motors check fuse check relay check all wiring and connectors to fans and if that don't work take it in.
But you may need an auto electrician
https://www.google.com/search?q=auto+electrician+near+me
..