I have a 2001 GMC Sonoma with a stock ECU. Two fans where added using relays to BLUE 42 (low) and RED 33 (high). The low speed fan works just fine but the high speed is set to PWM. How do I change the high speed fan output to latch the relay on?
I have a 2001 GMC Sonoma with a stock ECU. Two fans where added using relays to BLUE 42 (low) and RED 33 (high). The low speed fan works just fine but the high speed is set to PWM. How do I change the high speed fan output to latch the relay on?
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