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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.
P0480 VOLKSWAGEN - Cooling Fan 1 Control Circuit Malfunction
Possible causes- Fan control relay harness is open or shorted - Fan control relay circuit poor electrical connection - Fan cooling fan harness is open or shorted - Fan cooling fan circuit poor electrical connection - Faulty fan control relay - Faulty cooling fan 1 - Faulty ECM (very unlikely)
WHAT IT MEANS YOUR FAN CONTROL RELAY CONTROL CIRCUIT IS OPEN OR SHORTED TO GROUND. FAN CONTROL RELAY CONTROL CIRCUIT IS SHORTED TO SYSTEM POWER. THE FAN CONTROL RELAY POWER CIRCUIT IS OPEN CHECK COOL FAN 1 FUSE. FAN CONTROL RELAY IS DAMAGED OR HAS FAILED. PCM HAS FAILED.I LISTED ALL POSSIBLE CAUSES TO CODE PO480.
P0480 is for the electrical circuit of the cooling fan relay. The cooling fan relay is about the size of a deck of cards only a little taller. It's mounted to the metal bumper support under the bumper cover on the left side, near the headlight. It has aluminum cooling "towers" on top to dissipate heat. The most likely cause for this code to set would be a failed relay. It can also be caused by a short or open circuit on the control wiring running to it, and be sure to check all fuses in the box under the hood.
P0480 Cooling Fan I Control Circuit MalfunctionP0600 Serial Communication Link Malfunction not sure what they are on a Volvo,, repair wise, but thats what the codes are according to my research
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