Internal Wiring Harness
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The internal wiring harness has connectors (7), (3) and (4) for the shift solenoids "C", "D" and "E". Connectors (6) and (5) go to clutch trim solenoids "A" and "B". Connector (2) goes to the torque converter clutch solenoid "F". There is also a connector (1) for the pressure switch manifold. All of these connectors go to the transmission in-line 20-way connector (8). See Fig 1. The transmission in-line 20-way connector transports signals from these connectors to the TCM via the external harness.