25 goes to terminal A on the passenger side rear O2 sensor.
26 goes to terminal A on the driver's side rear O2 sensor.
38 goes to connector C3 terminal A1 at the EBCM.

19 is pink IGN1 voltage on the blue connector....not BLK/WHT axle switch signal. The circuit you posted on 19 is in the green connector and is only for 4WD with NP2 transfer case and the Av didn't come with that T/C.

74 on the blue connector is not what you listed.....it's supposed to be yellow ECT sensor signal. It's the green connector that has the 4 LT GRN 3212 HO2S Heater Low Control Bank 2 Sensor 1 that connects to terminal C on the passenger side front O2 sensor.