DTC U2107 Chevrolet

Cooling Fan 2 Control Circuit Malfunction

Cooling Fan 2 Control Circuit Malfunction

Description

Engine started, engine runtime over 32 seconds, system voltage over 10v, and the PCM detected the Cooling Fan 2 control circuit was high with the Fan 2 commanded on, or that it was low with the Fan 2 commanded off for 25 seconds of the 50 second t

Cause and Solution

Cooling Fan 2 control circuit open (high voltage condition)Cooling Fan 2 control circuit is shorted to ground (low voltage)Cooling Fan 2 relay power circuit is open (check the fuse)Cooling Fan 2 is damaged or has failedPCM has failed

Video Guide

Duration: PT4M17S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: U2107
  • Brand: Chevrolet
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