Automatic Transmission - 4L80-E/4L85-E (Introduction, Service & Replacement): Wiring Chevrolet Silverado 3500

Automatic Transmission Inline 20-Way Connector End View

Inline Harness Connector C103, Engine Side Connector End Connector Part Information 12160493 14F Micro-Pack 100W Series (GRY) Pin Wire Color Circuit No. Function A LT GRN 1222 1-2 Shift Solenoid Valve Control B YEL/BLK 1223 2-3 Shift Solenoid Valve Control C RED/BLK 1228 Pressure Control (PC) Solenoid Valve Controlled Power D LT BLU/WHT 1229 PC Solenoid Valve Controlled Ground E PNK 1020 Transmission Solenoid Power F-K - - Not Used L YEL/BLK 1227 Transmission Fluid Temperature (TFT) Sensor Signal M GRY 720 TFT Sensor Ground N PNK 1224 TFP Switch Signal A P RED 1226 TFP Switch Signal C R DK BLU 1225 TFP Switch Signal B S BRN 418 Torque Converter Clutch (TCC) Solenoid Valve Control T-W - - Not Used

Scheme 423

Inline Harness Connector End - Transmission Side Connector Part Information 12160782 14M Micro-Pack 100W Series (GRY) Pin Wire Color Circuit No. Function A LT GRN 1222 1-2 Shift Solenoid Valve Control B YEL 1223 2-3 Shift Solenoid Valve Control C PPL 1228 Pressure Control (PC) Solenoid Valve Controlled Power D LT BLU 1229 PC Solenoid Valve Controlled Ground E RED 839 Transmission Solenoid Power F-K - - Not Used L BRN 1227 Transmission Fluid Temperature (TFT) Sensor Signal M GRY 452 TFT Sensor Ground N PNK 1224 TFP Switch Signal A P ORN 1226 TFP Switch Signal C R DK BLU 1225 TFP Switch Signal B S BLK 418 Torque Converter Clutch (TCC) Solenoid Valve Control T-W - - Not Used

Automatic Transmission Internal Connector End Views

Automatic Transmission Fluid Pressure Manual Valve Position Switch Connector End , Wiring Harness Side Connector Part Information 12162200 Conn 3F M/P 150.2 P2S (RED) Pin Wire Color Circuit No. Function A PNK 1224 Transmission Range Switch Signal A Input B DK BLU 1225 Transmission Range Switch Signal B Input C ORN 1226 Transmission Range Switch Signal C Input

1-2 Shift Solenoid Valve Connector End , Wiring Harness Side Connector Part Information 12162201 Conn 2F M/P 150.2 P2S (NAT) Pin Wire Color Circuit No. Function A LT GRN 1222 1-2 Shift Solenoid Valve Control B RED 839B Transmission Solenoid Power

2-3 Shift Solenoid Valve Connector End , Wiring Harness Side Connector Part Information 12162205 Conn 2F M/P 150.2 P2S (MD GRY) Pin Wire Color Circuit No. Function A RED 839A Transmission Solenoid Power B YEL 1223 2-3 Shift Solenoid Valve Control

Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Connector End , Wiring Harness Side Connector Part Information 12162205 Conn 2F M/P 150.2 P2S (MD GRY) Pin Wire Color Circuit No. Function A RED 839C Transmission Solenoid Power B BLK 418 Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve

Pressure Control Solenoid Valve Connector End , Wiring Harness Side Connector Part Information 12146800 Conn 2F M/P 480 SPL (NAT) Pin Wire Color Circuit No. Function A PPL 1228 Pressure Control (PC) Solenoid Valve HIGH Control B LT BLU 1229 PC Solenoid Valve LOW Control

Transmission Fluid Temperature (TFT) Sensor Connector End , Wiring Harness Side Connector Part Information 12047662 CONN 2F M/P 150 (BLK) Pin Wire Color Circuit No. Function A BRN 1227 Transmission Fluid Temperature (TFT) Sensor Signal B GRY 452 TFT Sensor Ground

Automatic Transmission Related Connector End Views

Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector End Connector Part Information 12162194 ASM 2F M/P 150.2 P2S SLD (BLK) Pin Wire Color Circuit No. Function A RED/BLK 1230 Transmission Input Speed Sensor Signal High B DK BLU/WHT 1231 Transmission Input Speed Sensor Signal Low

Automatic Transmission Output Shaft Speed (AT OSS) Sensor Connector End Connector Part Information 12162194 ASM 2F M/P 150.2 P2S SLD (BLK) Pin Wire Color Circuit No. Function A PPL/WHT 821 Transmission Output Speed Sensor Signal High B LT GRN/BLK 822 Transmission Output Speed Sensor Signal Low

Transmission Range Switch Connector End , Wiring Harness Side Connector Part Information 15416722 BLK ASM Conn 12 F GT Pin Wire Color Circuit No. Function 1 DK GRN 1433 Clutch Start Switch Signal 2-3 - - Not Used 4 YEL 772 Transmission Range Switch Signal B 5 BLK/WHT 771 Transmission Range Switch Signal A 6 GRY 773 Transmission Range Switch Signal C 7 BLK/WHT 451 Ground 8 WHT 776 Transmission Range Switch Signal P 9 LT GRN 275 Park Neutral Position Switch Signal 10 GRY 1524 Back-Up Lamp Supply Voltage 11 PNK 839 Ignition 1 Voltage 12 PPL 639 Ignition 1 Voltage

Tow/Haul Switch Connector End , Column Wiring Harness Side Connector Part Information 12047663 Conn 2M M/P 150 (NAT) Pin Wire Color Circuit No. Function A LT BLU 553 Tow/Haul Switch Input B BLK 1850 Tow/Haul Switch Ground

Scheme 424

Scheme 425

1. Position the steering column shift lever to the park position.
2. Remove the instrument panel knee bolster. Refer to «Knee Bolster Replacement»(ref-184121-S33691865652005082200000) in Instrument Panel, Gages, and Console.
3. Remove the driver's seat. Refer to «Seat Replacement - Front Bucket»(ref-184147-S37056132362005082200000) in Seats.
4. Pull back the carpet and insulation around the driver's area.
5. Remove the retainer securing the cable to the steering column.
6. Remove the cable end from the steering column ball stud.
7. Depress the tangs and remove the cable from the steering column bracket.
8. Remove the bolt securing the cable support to the brace.
9. Remove the range selector cable from the support.
10. Remove the cable grommet from the floor panel.
11. Raise and suitably support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-184175-S17163319502005082200000) in General Information.
12. Remove the clips on the cable from the floor panel reinforcement.
13. Ensure the transmission manual shaft is positioned in mechanical park.
14. Remove the retainer that secures the cable to the bracket.
15. Remove the cable clip on the transfer case, if equipped.
16. Remove the range selector cable end (2) from the transmission range selector lever ball stud (1).
17. Depress the tangs and remove the cable from the bracket.
18. Lower the vehicle and ensure that the steering column shift lever is still in the park position.