Automatic Transmission

- Check the 40 amp fuse located in cavity 2 of the PDC

- The [1][2]PARK/NEUTRAL switch CLOSES when the transmission is in either the PARK or NEUTRAL positions

- Circuit T41 splices to cavity 30 of the Powertrain Control Module (PCM) This input tells the PCM the operator is starting the vehicle

- Circuit T41 is spliced to circuit Z1. Circuit Z1 provides ground for the vehicle speed sensor, A/C compressor clutch, 4x4 switch, vehicle speed control, heated oxygen sensor, and PCM. The engine will not start if the vehicle loses this ground.

- On diesel engines the T40 circuit is spliced and supplies power for the fuel shut down solenoid