1998 Chevrolet Cavalier Z24, 2D Convertible, StandardFACTORY OEM SERVICE PROCEDURE

PCM Harness Resistance

Turn ignition switch to LOCK position. Disconnect PCM and appropriate component harness connectors. Check for open or short circuits between PCM harness connector terminal and component harness connector terminal. See POWERTRAIN CONTROL MODULE (PCM) CONNECTOR I.D.  table. See WIRING DIAGRAMS - 2.4L article. If harness is open or shorted, repair as necessary.

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR I.D. (1)

Connector Terminal Wire Color Function
C1 1-5 ***** Not Used
C1 6 ORG/BLK (2) Ground
C1 7 BRN/WHT Camshaft Position Sensor Signal
C1 8 PPL/WHT Crankshaft Position Sensor 7x Reference Signal
C1 9 ***** Not Used
C1 10 GRY Fuel Tank Pressure Sensor Reference Voltage
C1 11-13 ***** Not Used
C1 14 TAN Serial Data (UART)
C1 15-17 ***** Not Used
C1 18 BLK/WHT Powertrain Control Module Ground
C1 19 PNK Ignition Voltage
C1 20 ORG Battery Voltage
C1 21 DK BLU Throttle Position Sensor Signal
C1 22-24 ***** Not Used
C1 25 ORG Ignition Control B
C1 26 WHT Ignition Control A
C1 27 TAN/BLK Engine Oil Pressure Signal
C1 28 RED Transmission Range C Signal
C1 29 BLK/WHT Transmission Range A Signal
C1 30-32 ***** Not Used
C1 33 DK BLU Knock Sensor Signal
C1 34 ***** Not Used
C1 35 PPL Torque Converter Clutch Brake Switch Signal
C1 36-44 ***** Not Used
C1 45 DK GRN Fuel Tank Pressure Sensor Signal
C1 46 YEL/BLK Transmission Fluid Temperature Sensor Signal
C1 47 & 48 ***** Not Used
C1 49 RED/BLK A/C Refrigerant Pressure Sensor Signal
C1 50 YEL/BLK Engine Coolant Level Sensor Signal
C1 51 ***** Not Used
C1 52 BLK A/C Refrigerant Pressure Sensor Ground
C1 53 GRY Generator Terminal F" Signal
C1 54 YEL Engine Coolant Temperature Sensor Signal
C1 55 & 56 ***** Not Used
C1 57 BLK Throttle Position Sensor Ground
C1 58 ***** Not Used
C1 59 PPL Serial Data (Class II)
C1 60 TAN/WHT Powertrain Control Module Ground
C1 61 PNK Ignition Voltage
C1 62 LT GRN Manifold Absolute Pressure Sensor Signal
C1 63 RED/BLK Input Shaft Speed Sensor High
C1 64 YEL Vehicle Speed Sensor High
C1 65 ***** Not Used
C1 66 BLK EGR Valve Ground
C1 67 DK BLU Transmission Range B Signal
C1 68 PNK Transmission Range A Signal
C1 69 YEL Transmission Range B Signal
C1 70 & 71 ***** Not Used
C1 72 GRY Transmission Range C Signal
C1 73 WHT Transmission Range P Signal
C1 74 RED Generator Terminal L
C1 75 BLK Fuel Injector No. 1 Control
C1 76 LT GRN/BLK Fuel Injector No. 2 Control
C1 77-80 ***** Not Used
C2 1-5 ***** Not Used
C2 6 RED/BLK Pressure Control Solenoid High Control
C2 7 RED EGR Valve Ignition Feed
C2 8 DK GRN/WHT Fuel Pump Relay Control
C2 9 LT BLU/WHT Pressure Control Solenoid Low Control
C2 10 WHT Tachometer Output
C2 11-13 ***** Not Used
C2 14 BLK/WHT Manifold Absolute Pressure Sensor Ground
C2 15 ***** Not Used
C2 16 DK GRN/WHT Vehicle Speed Sensor Output
C2 17 & 18 ***** Not Used
C2 19 BRN EGR Pintle Position Signal
C2 20 TAN Intake Air Temperature Sensor Signal
C2 21 TAN Heated Oxygen Sensor No. 1 Low
C2 22 PPL Heated Oxygen Sensor No. 1 Signal
C2 23 TAN/WHT Heated Oxygen Sensor No. 2 Low
C2 24 PPL/WHT Heated Oxygen Sensor No. 2 Signal
C2 25 & 26 ***** Not Used
C2 27 BRN Engine Coolant Temperature Sensor Ground
C2 28 GRY Intake Air Temperature Sensor Ground
C2 29 BLK Transmission Fluid Temperature Sensor Ground
C2 30 ***** Not Used
C2 31 RED/BLK Ignition Control Module Reference Low
C2 32 GRY EGR Valve Reference Voltage
C2 33 GRY Throttle Position Sensor Reference Voltage
C2 34 GRY A/C Pressure Sensor Reference Voltage
C2 35 GRY Manifold Absolute Pressure Sensor Reference Voltage
C2 36 RED Camshaft Position Sensor Battery Voltage Supply
C2 37-44 ***** Not Used
C2 45 DK GRN Cruise Disable Output
C2 46 BRN/WHT Malfunction Indicator Light Control
C2 47 ***** Not Used
C2 48 LT BLU/BLK Cruise Engaged Signal
C2 49 YEL Torque Converter Clutch Release Switch Signal
C2 50 TAN/BLK (3) Torque Converter Clutch Solenoid Control
C2 51 YEL/BLK 2-3 Shift Solenoid Control
C2 52 ***** Not Used
C2 53 LT GRN 1-2 Shift Solenoid Control
C2 54 DK GRN Cooling Fan Relay Control
C2 55 DK GRN/WHT A/C Clutch Relay Control
C2 56 DK GRN/WHT EVAP Canister Purge Valve Control
C2 57 BRN Torque Converter Clutch PWM Solenoid Control
C2 58 WHT EVAP Canister Vent Solenoid Control
C2 59 DK BLU (3) Cooling Fan Relay Control
C2 60 ***** Not Used
C2 61 PPL Vehicle Speed Sensor Low
C2 62 DK BLU/WHT Input Shaft Speed Sensor Low
C2 63 PNK/BLK Camshaft Position Ground
C2 64 BLK/WHT Powertrain Control Module Ground
C2 65-70 ***** Not Used
C2 71 LT BLU/WHT Idle Air Control Coil A High
C2 72 LT GRN/WHT Idle Air Control Coil B High
C2 73 LT GRN/BLK Idle Air Control Coil B Low
C2 74 LT BLU/BLK Idle Air Control Coil A Low
C2 75 LT BLU/BLK Fuel Injector No. 4 Control
C2 76 PNK/BLK Fuel Injector No. 3 Control
C2 77-80 ***** Not Used
(1) See Fig 1 .
(2) Fuel tank pressure sensor ground.
(3) Not used on 2.4L Cavalier and Sunfire.
Fig 1: Identifying Powertrain Control Module (PCM) Harness Connector Terminals
G98F00864Courtesy of GENERAL MOTORS CORP.
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