Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2000CAVALIER BASE, 4D SEDAN, 2.2 4, LN2, AUTOMATIC, 3T40/MD9REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - TESTING & ENGINE COMPONENT TESTINGCOMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATIONPOWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (3.8L - LESABRE)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, Automatic, 3T40/MD9
Powertrain Control Module Connector Terminal Identification (3.8L - LESABRE)
2000 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, Automatic, 3T40/MD9SECTION Powertrain Control Module Connector Terminal Identification (3.8L - LESABRE)
POWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (3.8L - LESABRE) (1)
| Connector | Terminal No. | Wire Color | Function | ||
|---|---|---|---|---|---|
| C1 | 1 | BLK | Sensor Return | ||
| C1 | 2 & 3 | ..... | Not Used | ||
| C1 | 4 | LT GRN | Shift Solenoid Valve "A" Control | ||
| C1 | 5 | DK BLU | Cooling Fan Relay No. 2 Control (High Speed) | ||
| C1 | 6 | DK GRN | Cooling Fan Relay No. 1 Control (Low Speed) | ||
| C1 | 7 | BLK | Camshaft Position PCM Input | ||
| C1 | 8 | PPL/WHT | Crankshaft Position 3x Sensor Reference | ||
| C1 | 9 | LT BLU/BLK | Crankshaft Position 18x Sensor Reference | ||
| C1 | 10 | GRY | Manifold Absolute Pressure Sensor 5-Volt Reference | ||
| C1 | 11 | ..... | Not Used | ||
| C1 | 12 | BLK | Engine Coolant Temperature Sensor Ground | ||
| C1 | 13 | ORG/BLK | Manifold Absolute Pressure Sensor Ground | ||
| C1 | 14 & 15 | ..... | Not Used | ||
| C1 | 16 | BLK/WHT | Powertrain Control Module Ground | ||
| C1 | 17 | RED/BLK | Intake Air Temperature Sensor Ground | ||
| C1 | 18 | ..... | Not Used | ||
| C1 | 19 | WHT | Ignition Positive Voltage (OFF/RUN/START) | ||
| C1 | 20 | ORG | Battery Positive Voltage | ||
| C1 | 21 | ..... | Not Used | ||
| C1 | 22 | PNK | Transaxle Fluid Pressure Switch "A" Input | ||
| C1 | 23-27 | ..... | Not Used | ||
| C1 | 28 | TAN | Heated Oxygen Sensor No. 2 Signal Low | ||
| C1 | 29 | TAN | Heated Oxygen Sensor No. 1 Signal Low | ||
| C1 | 30 | PPL | Torque Converter Clutch Brake Switch Input | ||
| C1 | 31 | BLK | EGR Pintle Position Sensor Ground | ||
| C1 | 32 | GRY | EGR Valve Control Ground | ||
| C1 | 33 | DK BLU | Bank No. 1 Knock Sensor Signal | ||
| C1 | 34 | LT BLU | Bank No. 2 Knock Sensor Signal | ||
| C1 | 35-37 | ..... | Not Used | ||
| C1 | 38 | LT GRN/WHT | Idle Air Control Valve "B" High | ||
| C1 | 39-42 | ..... | Not Used | ||
| C1 | 43 | YEL/BLK | Fuel Injector No. 6 Control Circuit | ||
| C1 | 44 | YEL/BLK | Shift Solenoid Valve "B" Control | ||
| C1 | 45 | PNK/BLK | Air Injection Reaction Solenoid Output | ||
| C1 | 46 | LT BLU/BLK | Fuel Injector No. 4 Control Circuit | ||
| C1 | 47 | BLK/WHT | Fuel Injector No. 5 Control Circuit | ||
| C1 | 48 | RED/BLK | Reference Low | ||
| C1 | 49-52 | ..... | Not Used | ||
| C1 | 53 | TAN/BLK | By-Pass Valve Control | ||
| C1 | 54 | WHT | Ignition Control | ||
| C1 | 55 | DK GRN/WHT | Vehicle Speed Sensor Output | ||
| C1 | 56 | BLK/WHT | Powertrain Control Module Ground | ||
| C1 | 57 | BLK/WHT | Powertrain Control Module Ground | ||
| C1 | 58 | PPL | Serial Data (Class 2) | ||
| C1 | 59 | PPL | Serial Data (Class 2) | ||
| C1 | 60 | BLK/WHT | Powertrain Control Module Ground | ||
| C1 | 61 | BLK | Throttle Position Sensor Ground | ||
| C1 | 62 | DK BLU/WHT | A/T Input Shaft Speed Sensor Low | ||
| C1 | 63 | RED/BLK | A/T Input Shaft Speed Sensor High | ||
| C1 | 64 | YEL | Vehicle Speed Sensor High | ||
| C1 | 65 | PPL | Vehicle Speed Sensor Low | ||
| C1 | 66 & 67 | ..... | Not Used | ||
| C1 | 68 | YEL | Transaxle Range Switch Input "B" | ||
| C1 | 69 | YEL | Mass Airflow Sensor Signal | ||
| C1 | 70 | ..... | Not Used | ||
| C1 | 71 | ORG/BLK | Traction Control Desired Torque Input | ||
| C1 | 72 | DK GRN | Cruise Control Disable/Inhibit Control | ||
| C1 | 73 | LT GRN/BLK | Fuel Injector No. 2 Control Circuit | ||
| C1 | 74 & 75 | ..... | Not Used | ||
| C1 | 76 | DK GRN/WHT | EVAP Canister Purge Control | ||
| C1 | 77 & 78 | ..... | Not Used | ||
| C1 | 79 | BLK | Fuel Injector No. 1 Control Circuit | ||
| C1 | 80 | BLK | Sensor Return (Engine Oil Pressure) | ||
| C2 | 1 | ..... | Not Used | ||
| C2 | 2 | WHT | EVAP Canister Vent Valve Control | ||
| C2 | 3 | DK GRN/WHT | Fuel Pump Relay Control | ||
| C2 | 4 | WHT | EGR Valve Control | ||
| C2 | 5 | BRN/WHT | Malfunction Indicator Light Control | ||
| C2 | 6 | ..... | Not Used | ||
| C2 | 7 | LT BLU/WHT | Idle Air Control Valve "A" High | ||
| C2 | 8 | WHT | Tachometer Signal | ||
| C2 | 9 | TAN/BLK | Traction Control Delivered Torque Control | ||
| C2 | 10 | PPL | Heated Oxygen Sensor No. 1 Signal High | ||
| C2 | 11 | PPL | Heated Oxygen Sensor No. 2 Signal High | ||
| C2 | 12-15 | ..... | Not Used | ||
| C2 | 16 | WHT | Transaxle Range Switch Input "P" | ||
| C2 | 17 | RED | Transmission Fluid Pressure Switch "C" | ||
| C2 | 18 | BLK/WHT | Transaxle Range Switch Input "A" | ||
| C2 | 19-22 | ..... | Not Used | ||
| C2 | 23 | PPL | Crank Signal | ||
| C2 | 24 | PNK | Ignition Positive Voltage | ||
| C2 | 25 | LT GRN | Manifold Absolute Pressure Sensor Signal | ||
| C2 | 26 | YEL | Engine Coolant Temperature Sensor Signal | ||
| C2 | 27 | RED/BLK | A/C Refrigerant Pressure Sensor Signal | ||
| C2 | 28 | BRN | EGR Valve Pintle Position Signal | ||
| C2 | 29 | GRY | Generator Terminal "F" Monitor | ||
| C2 | 30 | GRY | EGR Valve 5-Volt Reference "A" | ||
| C2 | 31 | ..... | Not Used | ||
| C2 | 32 | GRY | Engine Oil Pressure 5-Volt Reference "A" | ||
| C2 | 33 | GRY | Fuel Level/Throttle Position Sensor 5-Volt Reference "A" | ||
| C2 | 34 | GRY | A/C Pressure/Fuel Tank Pressure Sensor 5-Volt Reference "B" | ||
| C2 | 35 | BLK | Sensor Ground | ||
| C2 | 36-38 | ..... | Not Used | ||
| C2 | 39 | DK GRN/WHT | A/C Compressor Clutch Relay Control | ||
| C2 | 40 & 41 | ..... | Not Used | ||
| C2 | 42 | PNK/BLK | Fuel Injector No. 3 Control Circuit | ||
| C2 | 43 | ..... | Not Used | ||
| C2 | 44 | LT BLU/BLK | Idle Air Control Valve "A" Low | ||
| C2 | 45 | RED/BLK | Pressure Control Solenoid High | ||
| C2 | 46 | LT BLU/WHT | Pressure Control Solenoid Low | ||
| C2 | 47 & 48 | ..... | Not Used | ||
| C2 | 49 | LT GRN/BLK | Idle Air Control Valve "B" Low | ||
| C2 | 50 | TAN | Intake Air Temperature Sensor Signal | ||
| C2 | 51 & 52 | ..... | Not Used | ||
| C2 | 53 | TAN/WHT | Oil Pressure Sensor Signal | ||
| C2 | 54 | ..... | Not Used | ||
| C2 | 55 | DK GRN | Fuel Tank Pressure Sensor Signal | ||
| C2 | 56 | GRY | Transaxle Range Switch Input "C" | ||
| C2 | 57 | DK BLU | Transaxle Fluid Pressure Switch "B" | ||
| C2 | 58 | BRN | Engine Oil Level Sensor Signal | ||
| C2 | 59 | LT BLU/BLK | Cruise Control Status | ||
| C2 | 60 | GRY | Brake Pedal Switch Output (Extended Travel) | ||
| C2 | 61 | RED | Generator Terminal "L" Control | ||
| C2 | 62 | ..... | Not Used | ||
| C2 | 63 | YEL | Torque Converter Clutch Release Switch Input | ||
| C2 | 64 & 65 | ..... | Not Used | ||
| C2 | 66 | DK BLU | Throttle Position Sensor Signal | ||
| C2 | 67 | ..... | Not Used | ||
| C2 | 68 | YEL/BLK | Transaxle Fluid Temperature Sensor | ||
| C2 | 69 | PPL | Fuel Level Input | ||
| C2 | 70-74 | ..... | Not Used | ||
| C2 | 75 | BRN | Air injection Reaction Pump Motor Relay Output Coil | ||
| C2 | 76 | YEL/BLK | Starter Relay Output Coil | ||
| C2 | 77 | GRY | Boost Control Solenoid Control | ||
| C2 | 78 | BRN | Torque Converter Clutch PWM Solenoid Control | ||
| C2 | 79 & 80 | ..... | Not Used | ||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.