Chevrolet P1651: Cooling Fan 1 Relay Control Circuit Malfunctions
Is your scanner showing Chevrolet P1651?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1651: Cooling Fan 1 Relay Control Circuit Malfunctions
OVERVIEWWhat Does The Chevrolet P1651 Code Mean?
Key on or engine running; and the PCM detected an unexpected voltage condition on the Cooling Fan Relay 2 control circuit for 30 seconds during the CCM test.
What Are The Potential Causes Of The Chevrolet P1651 Code?
- Cooling fan relay 1 control circuit is open, shorted to ground or to system power
- Cooling fan relay 1 power circuit is open (test COOL FAN1 fuse or the MAXI fuse)
- Cooling fan relay 1 is damaged or has failed
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
