Chevrolet Chevy Express G3500 (1996-2012) Transmission circuit

1 2 B+ GND 6 7 8 9 10 11 12 BRAKE SW SIG AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR BLK/WHT WIRE BRK SW FUSE 13 BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY (DIC) ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EXCEPT 6.6L 6.6L EXTERIOR LIGHTS SYSTEM 1786 2501 2500 6399 GMLAN HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY 15 ENERGIZED IGN IGN VOLTAGE INSTRUMENT PANEL CLUSTER INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW REFERENCE LT BLU WIRE LT BLU/WHT WIRE ORG/BLK WIRE PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL PNK WIRE PRESSURE CONTROL (PC) SOLENOID VALVE 1 PRESSURE CONTROL (PC) SOLENOID VALVE 2 PRESSURE CONTROL (PC) SOLENOID VALVE 3 PRESSURE CONTROL (PC) SOLENOID VALVE 4 PRESSURE CONTROL (PC) SOLENOID VALVE 5 RED/WHT WIRE SHIFT SOLENOID (SS) 1 CONTROL SHIFT SOLENOID (SS) 2 CONTROL SHIFT SOLENOID (SS) VALVE 1 SHIFT SOLENOID (SS) VALVE 2 STOP LAMP SWITCH (BEHIND LEFT SIDE OF DASH, ABOVE BRAKE PEDAL) TAN WIRE TAN/BLK WIRE TCM BATT FUSE 32 TCM IGN FUSE 31 TO AUTOMATIC TRANSMISSION (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID VALVE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOW/HAUL IND TOW/HAUL SWITCH TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

8 VOLT REF AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION MANUAL SHIFT SWITCH BLK WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM FROM AUTOMATIC TRANSMISSION (DIAGRAM 1 OF 2) GMLAN GMLAN SERIAL SERIAL DATA DATA BUS - BUS + GMLAN SERIAL DATA BUS + GRN WIRE GROUND GRY WIRE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (AT TOP OF STEERING COLUMN) INPUT SHAFT SPEED (ISS) SENSOR INPUT SPEED SENSOR (ISS) SIGNAL LT BLU WIRE OUTPUT SHAFT SPEED (OSS) SENSOR OUTPUT SPEED SENSOR (OSS) SIGNAL PNK CRUISE CONTROL, SOUND SYSTEMS WIRE PNK WIRE PPL RED WIRE REF TAN WIRE TAN/BLK WIRE TAP UP/ TAP DOWN SW SIG TFP SWITCH 1 TFP SWITCH 3 TFP SWITCH 4 TFP SWITCH 5 TOW/ HAUL SW SIG TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P WHT WIRE YEL WIRE