With 4L80-E Automatic Transmission

ECM Wiring Diagram (Part 1 Of 5):

D6 = DIAGNOSTIC TEST.
C2 = SYSTEM GROUND.
C3 = SYSTEM GROUND.
C13 = OXYGEN SENSOR GROUND.
C11 = SERIAL DATA.
C14 = OXYGEN SENSOR SIGNAL.
D4 = 5 VOLT REFERENCE.
C10 = MAP SIGNAL.
D2 = MAP/TTS GROUND.
D15 = TTS SIGNAL.
C4 = 5 VOLT REFERENCE.
C5 = TPS SIGNAL.
D3 = SENSOR GROUND.
D16 = CTS SIGNAL.

ECM Wiring Diagram (Part 2 Of 5):

C6 = IAC COIL "A" HIGH.
C7 = IAC COIL "A" LOW.
C8 = IAC COIL "B" LOW.
C9 = IAC COIL "B" HIGH.
D1 = BATTERY FEED.
A1 = FUEL PUMP RELAY CONTROL.
D7 = FUEL PUMP SIGNAL.
B12 = A/C SIGNAL.

ECM Wiring Diagram (Part 3 Of 5):

A7 = SERVICE ENGINE SOON LIGHT CONTROL.
A4 = TCC CONTROL.
A3 = SOLENOID "A" CONTROL.
A2 = SOLENOID "B" CONTROL.
B7 = FORCE MOTOR LOW.
B8 = FORCE MOTOR HIGH.
B4 = PSM RANGE SIGNAL "A".
B3 = PSM RANGE SIGNAL "B".
B2 = PSM RANGE SIGNAL "C".

ECM Wiring Diagram (Part 4 Of 5):

C1 = IGNITION FEED.
A12 = BRAKE SIGNAL.
B6 = OUTPUT SPEED LOW.
B5 = OUTPUT SPEED HIGH.
B4 = MODE "A" SIGNAL.
B3 = MODE "B" SIGNAL.
B2 = MODE "C" SIGNAL.
B9 = INPUT SPEED SIGNAL HIGH.
B10 = INPUT SPEED SIGNAL LOW.
B11 = TRANSMISSION OUTPUT SPEED AND
VEHICLE SPEED SIGNAL.

ECM Wiring Diagram (Part 5 Of 5):

C16 = INJECTOR CONTROL.
C15 = INJECTOR CONTROL.
A11 = EGR SOLENOID.
A11 = EVRV SOLENOID CONTROL.
A6 = EAC SOLENOID.
D5 = KNOCK SIGNAL.
D11 = EST CONTROL.
D14 = EST REFERENCE HIGH.
D12 = EST BYPASS.
D13 = EST REFERENCE LOW.