Join Date: Nov 2009
Feedback Score: 0 reviews
You could bypass the relay to check the main fan. If you short the rear two connectors (from the position of looking to the rear while opening up hood). There are four relays, front to back the first is main fan, second AC fan, third not sure but manual mentioned linked to one of the fans, 4th AC compressor clutch. The strange issue on this one is the shorting did not work for the AC fan, I had to splice into the positive lead on the fan itself (the ground is through the connector plug to the fan). Put cheap fuse blocks on the lines to prevent fires. Shorting works for the AC compressor clutch though. Not sure if this helps in terms of the ECU, but could help in finding bad relay.