With 4L80-E Transmission

PCM Wiring Diagram With 4L80E Trans. (1 Of 5):

A14 = DIAGNOSTIC TEST
A1 = SYSTEM GROUND
A2 = SYSTEM GROUND
A12 = OXYGEN SENSOR GROUND
F9 = SERIAL DATA
A10 = OXYGEN SENSOR SIGNAL
A10 = HEATED OXYGEN SENSOR SIGNAL
E14 = MAP AND EGR REFERENCE
B13 = MAP SENSOR SIGNAL
B4 = MAP / TTS GROUND
F14 = TP SENSOR REFERENCE
A15 = TP SENSOR SIGNAL
B3 = SENSOR GROUND
B8 = ECT SIGNAL
E12 = A/C SIGNAL

PCM Wiring Diagram With 4L80E Trans. (2 Of 5):

A3 = IAC "A" HIGH
A6 = IAC "A" LOW
A8 = IAC "B" HIGH
A7 = IAC "A" LOW
E16 = BATTERY FEED
F6 = FUEL PUMP RELAY CONTROL
B12 = FUEL PUMP SIGNAL
B10 = CRUISE SIGNAL
E6 = MALFUNCTION INDICATOR LAMP (MIL) CONTROL
E10 = IDLE SPEED ACTUATOR CONTROL

PCM Wiring Diagram With 4L80E Trans. (3 Of 5):

A16 = INJECTOR "1" CONTROL
A9 = INJECTOR "2" CONTROL
F16 = EVAP PURGE CONTROL
E1 = EGR CONTROL
B4 = SENSOR GROUND
B16 = PINTLE POSITION SIGNAL
E14 = 5V REFERENCE
F15 = IGNITION FEED
E1 = EVRY SOLENOID CONTROL
E1 = EGR CONTROL
B15 = KNOCK SIGNAL
F11 = IC CONTROL
A4 = IC REFERENCE HIGH
B2 = IC BYPASS
A5 = IC REFERENCE LOW

PCM Wiring Diagram With 4L80E Trans. (4 Of 5):

E13 = BRAKE SIGNAL
E15 = IGNITION FEED
F15 = IGNITION FEED
F13 = VEHICLE SPEED SIGNAL
F12 = TRANSMISSION OUTPUT SPEED
E2 = GOVERNOR CONTROL

PCM Wiring Diagram With 4L80E Trans. (5 Of 5):

F2 = INPUT SPEED SIGNAL HIGH
F3 = INPUT SPEED SIGNAL LOW
B4 = SENSOR GROUND
B5 = TRANS FLUID TEMP SIGNAL
E11 = TCC SOLENOID CONTROL
E9 = 1 - 2 SHIFT SOLENOID CONTROL
E8 = 2 - 3 SHIFT SOLENOID CONTROL
F7 = PRESSURE CONTROL SOLENOID LOW
F10 = PRESSURE CONTROL SOLENOID HIGH
F1 = RANGE SIGNAL "A"
E4 = RANGE SIGNAL "B"
E5 = RANGE SIGNAL "C"