| Table 1: | Engine Control Module - X1 (LS2) | 
| Table 2: | Engine Control Module - X2 (LS2) | 
 
 | |||
|---|---|---|---|
Connector Part Information  | |||
Pin  | Wire Colour  | Wire Size  | Function  | 
X1-1  | OG/BK  | 0.5  | Park/Neutral Signal  | 
X1-2  | --  | --  | --  | 
X1-3  | --  | --  | --  | 
X1-4  | --  | --  | --  | 
X1-5  | --  | --  | --  | 
X1-6  | BN/WH  | 0.5  | Cruise Control Disable Clutch Switch Signal  | 
X1-7  | --  | --  | --  | 
X1-8  | L-GN  | 0.5  | Backup Lamp Switch Signal  | 
X1-9  | WH/BU  | 0.5  | Stop Lamp Switch Signal  | 
X1-10  | PU/WH  | 0.5  | HO2S High Signal (Bank 1 Sensor 2)  | 
X1-11  | BN/WH  | 0.5  | HO2S Low Signal (Bank 1 Sensor 2)  | 
X1-12  | OG/BK  | 0.5  | A/C Refrigerant Pressure Sensor Signal  | 
X1-13  | BN/D-GN  | 0.5  | Low Reference  | 
X1-14  | --  | --  | --  | 
X1-15  | --  | --  | --  | 
X1-16  | PU  | 0.5  | Fuel Level Sensor Signal (Primary)  | 
X1-17  | D-BU  | 0.5  | High Speed Cooling Fan Relay Control  | 
X1-18  | D-BU  | 0.5  | TCM Accessory Signal  | 
X1-19  | PK  | 0.5  | Ignition 1 Voltage  | 
X1-20  | OG/BK  | 0.75  | Battery Positive Voltage  | 
X1-21  | --  | --  | --  | 
X1-22  | --  | --  | --  | 
X1-23  | PU  | 0.5  | Low Reference  | 
X1-24  | --  | --  | --  | 
X1-25  | --  | --  | --  | 
X1-26  | --  | --  | --  | 
X1-27  | BN  | 0.5  | High Speed GMLAN Serial Data Bus-  | 
X1-28  | BN/BK  | 0.5  | High Speed GMLAN Serial Data Bus+  | 
X1-29  | BU/WH  | 0.5  | APP Sensor 1 Signal  | 
X1-30  | BN  | 0.5  | Low Reference  | 
X1-31  | BN/YE  | 0.5  | Low Reference  | 
X1-32  | L-BU  | 0.5  | APP Sensor 2 Signal  | 
X1-33  | --  | --  | --  | 
X1-34  | GY  | 0.5  | 5-Volt Reference  | 
X1-35  | --  | --  | --  | 
X1-36  | BN/YE  | 0.5  | 5-Volt Reference  | 
X1-37  | BN/RD  | 0.5  | IAT Sensor Signal  | 
X1-38  | BN/WH  | 0.5  | Low Reference  | 
X1-39  | --  | --  | --  | 
X1-40  | --  | --  | --  | 
X1-41  | YE  | 0.5  | MAF Sensor Signal  | 
X1-42  | --  | --  | --  | 
X1-43  | --  | --  | --  | 
X1-44  | XX  | XX  | High Speed Cooling Fan Relay Control  | 
X1-45  | --  | --  | --  | 
X1-46  | --  | --  | --  | 
X1-47  | BK  | 0.75  | Ignition 1 Voltage  | 
X1-48  | --  | --  | --  | 
X1-49  | BN/WH  | 0.5  | HO2S Low Signal (Bank 2 Sensor 2)  | 
X1-50  | D-GN/WH  | 0.5  | Fuel Pump Relay Control (Primary)  | 
X1-51  | --  | --  | --  | 
X1-52  | YE  | 0.5  | Starter Relay Coil Control  | 
X1-53  | --  | --  | --  | 
X1-54  | --  | --  | --  | 
X1-55  | --  | --  | --  | 
X1-56  | WH/BK  | 0.5  | 5-Volt Reference  | 
X1-57  | --  | --  | --  | 
X1-58  | D-GN  | 0.5  | Low Speed Cooling Fan Relay Control  | 
X1-59  | BN  | 0.5  | Main Relay Control  | 
X1-60  | --  | --  | --  | 
X1-61  | --  | --  | --  | 
X1-62  | --  | --  | --  | 
X1-63  | --  | --  | --  | 
X1-64  | OG/WH  | 0.5  | HO2S Heater Low Control (Bank 2 Sensor 2)  | 
X1-65  | BN  | 0.5  | HO2S Heater Low Control (Bank 1 Sensor 2)  | 
X1-66  | --  | --  | --  | 
X1-67  | --  | --  | --  | 
X1-68  | BN/WH  | 0.5  | MIL Control  | 
X1-69  | PU  | 0.5  | HO2S High Signal (Bank 2 Sensor 2)  | 
X1-70  | L-BU  | 0.5  | Fuel Level Sensor Signal (Secondary)  | 
X1-71  | --  | --  | --  | 
X1-72  | --  | --  | --  | 
X1-73  | BK  | 2.0  | Ground  | 
 
 | |||
|---|---|---|---|
Connector Part Information  | |||
Pin  | Wire Colour  | Wire Size  | Function  | 
X2-1  | --  | --  | --  | 
X2-2  | L-GN  | 0.5  | 12-Volt Reference  | 
X2-3  | GY  | 0.5  | 5-Volt Reference  | 
X2-4  | --  | --  | --  | 
X2-5  | BN  | 0.75  | TAC Motor Control - 2  | 
X2-6  | YE  | 0.75  | TAC Motor Control - 1  | 
X2-7  | --  | --  | --  | 
X2-8  | D-GN/WH  | 0.75  | EVAP Canister Purge Solenoid Control  | 
X2-9  | --  | --  | --  | 
X2-10  | --  | --  | --  | 
X2-11  | L-GN  | 0.75  | Reverse Lockout Solenoid Control  | 
X2-12  | GY/WH  | 0.5  | HO2S Heater Low Control (Bank 1 Sensor 1)  | 
X2-13  | L-GN  | 0.5  | HO2S Heater Low Control (Bank 2 Sensor 1)  | 
X2-14  | --  | --  | --  | 
X2-15  | --  | --  | --  | 
X2-16  | --  | --  | --  | 
X2-17  | D-BU/WH  | 0.75  | Fuel Injector 8 Control  | 
X2-18  | BN/WH  | 0.75  | Fuel Injector 5 Control  | 
X2-19  | YE/BK  | 0.75  | Fuel Injector 6 Control  | 
X2-20  | BN/BK  | 0.75  | Fuel Injector 1 Control  | 
X2-21  | YE/D-GN  | 0.5  | ECT Sensor Signal  | 
X2-22  | BN/WH  | 0.5  | Low Reference  | 
X2-23  | D-GN/YE  | 0.5  | Oil Temperature Sensor Signal  | 
X2-24  | BN/RD  | 0.5  | Low Reference  | 
X2-25  | --  | --  | --  | 
X2-26  | D-BU  | 0.5  | Knock Sensor 1 Signal  | 
X2-27  | GY  | 0.5  | Low Reference  | 
X2-28  | --  | --  | --  | 
X2-29  | L-BU  | 0.5  | Knock Sensor 2 Signal  | 
X2-30  | TN  | 0.5  | Low Reference  | 
X2-31  | --  | --  | --  | 
X2-32  | PU/WH  | 0.5  | Generator Field Duty Cycle Signal  | 
X2-33  | BN  | 0.5  | Oil Level Switch Signal  | 
X2-34  | BK  | 0.5  | Low Reference  | 
X2-35  | BN/BK  | 0.5  | Low Reference  | 
X2-36  | --  | --  | --  | 
X2-37  | L-GN/BK  | 0.75  | Fuel Injector 2 Control  | 
X2-38  | PK/BK  | 0.75  | Fuel Injector 3 Control  | 
X2-39  | L-BU/BK  | 0.75  | Fuel Injector 4 Control  | 
X2-40  | OG/BK  | 0.75  | Fuel Injector 7 Control  | 
X2-41  | GY  | 0.5  | 5-Volt Reference  | 
X2-42  | --  | --  | --  | 
X2-43  | GY  | 0.5  | 5-Volt Reference  | 
X2-44  | OG  | 0.35  | 12-Volt Reference  | 
X2-45  | --  | --  | --  | 
X2-46  | --  | --  | --  | 
X2-47  | --  | --  | --  | 
X2-48  | --  | --  | --  | 
X2-49  | --  | --  | --  | 
X2-50  | BN/WH  | 0.5  | Oil Pressure Sensor Signal  | 
X2-51  | --  | --  | --  | 
X2-52  | --  | --  | --  | 
X2-53  | OG/BK  | 0.5  | Low Reference  | 
X2-54  | --  | --  | --  | 
X2-55  | --  | --  | --  | 
X2-56  | BN/YE  | 0.5  | HO2S Low Signal (Bank 1 Sensor 1)  | 
X2-57  | PU/WH  | 0.5  | HO2S High Signal (Bank 1 Sensor 1)  | 
X2-58  | L-GN  | 0.5  | MAP Sensor Signal  | 
X2-59  | PU  | 0.5  | HO2S High Signal (Bank 2 Sensor 1)  | 
X2-60  | BN/RD  | 0.5  | HO2S Low Signal (Bank 2 Sensor 1)  | 
X2-61  | OG/WH  | 0.5  | Generator Turn On Signal  | 
X2-62  | --  | --  | --  | 
X2-63  | PU  | 0.5  | TP Sensor 2 Signal  | 
X2-64  | BN/WH  | 0.5  | CMP Sensor Signal  | 
X2-65  | D-GN  | 0.5  | TP Sensor 1 Signal  | 
X2-66  | PK/BK  | 0.5  | Low Reference  | 
X2-67  | --  | --  | --  | 
X2-68  | D-BU/WH  | 0.5  | CKP Sensor Signal  | 
X2-69  | YE/BK  | 0.5  | Low Reference  | 
X2-70  | PU  | 0.5  | IC 1 Control  | 
X2-71  | PU/WH  | 0.5  | IC 8 Control  | 
X2-72  | OG  | 0.5  | IC 7 Control  | 
X2-73  | OG/WH  | 0.5  | IC 2 Control  | 
X2-74  | L-BU/WH  | 0.5  | IC 6 Control  | 
X2-75  | D-GN/RD  | 0.5  | IC 5 Control  | 
X2-76  | D-GN/WH  | 0.5  | IC 4 Control  | 
X2-77  | L-BU  | 0.5  | IC 3 Control  | 
X2-78  | BN  | 0.5  | Low Reference  | 
X2-79  | BN/WH  | 0.5  | Low Reference  | 
X2-80  | --  | --  | --  | 
| Table 1: | Engine Control Module - X1 (L98) | 
| Table 2: | Engine Control Module - X2 (L98) | 
 
 | |||
|---|---|---|---|
Connector Part Information  | |||
Pin  | Wire Colour  | Wire Size  | Function  | 
X1-1  | OG/BK  | 0.5  | Park/Neutral Signal  | 
X1-2  | --  | --  | Not Used  | 
X1-3  | --  | --  | Not Used  | 
X1-4  | --  | --  | Not Used  | 
X1-5  | --  | --  | Not Used  | 
X1-6  | BN/WH  | 0.5  | Cruise Control Disable Clutch Switch Signal  | 
X1-7  | --  | --  | Not Used  | 
X1-8  | L-GN  | 0.5  | Backup Lamp Switch Signal  | 
X1-9  | WH/BU  | 0.5  | Stop Lamp Switch Signal  | 
X1-10  | PU/WH  | 0.5  | HO2S High Signal (Bank 1 Sensor 2)  | 
X1-11  | BN/WH  | 0.5  | HO2S Low Signal (Bank 1 Sensor 2)  | 
X1-12  | OG/BK  | 0.5  | A/C Refrigerant Pressure Sensor Signal  | 
X1-13  | BN/D-GN  | 0.5  | Low Reference  | 
X1-14  | --  | --  | Not Used  | 
X1-15  | --  | --  | Not Used  | 
X1-16  | PU  | 0.5  | Fuel Level Sensor Signal (Primary)  | 
X1-17  | D-BU/BK  | 0.5  | High Speed Cooling Fan Relay Control  | 
X1-18  | D-BU  | 0.5  | TCM Accessory Signal  | 
X1-19  | PK  | 0.5  | Ignition 1 Voltage  | 
X1-20  | OG/BK  | 0.75  | Battery Positive Voltage  | 
X1-21  | --  | --  | Not Used  | 
X1-22  | --  | --  | Not Used  | 
X1-23  | PU  | 0.5  | Low Reference  | 
X1-24  | --  | --  | Not Used  | 
X1-25  | --  | --  | Not Used  | 
X1-26  | --  | --  | Not Used  | 
X1-27  | BN  | 0.5  | High Speed GMLAN Serial Data Bus-  | 
X1-28  | BN/BK  | 0.5  | High Speed GMLAN Serial Data Bus+  | 
X1-29  | BU/WH  | 0.5  | APP Sensor 1 Signal  | 
X1-30  | BN  | 0.5  | Low Reference  | 
X1-31  | BN/YE  | 0.5  | Low Reference  | 
X1-32  | L-BU  | 0.5  | APP Sensor 2 Signal  | 
X1-33  | --  | --  | Not Used  | 
X1-34  | GY  | 0.5  | 5-Volt Reference  | 
X1-35  | --  | --  | Not Used  | 
X1-36  | BN/YE  | 0.5  | 5-Volt Reference  | 
X1-37  | BN/RD  | 0.5  | IAT Sensor Signal  | 
X1-38  | BN/WH  | 0.5  | Low Reference  | 
X1-39  | --  | --  | Not Used  | 
X1-40  | --  | --  | Not Used  | 
X1-41  | YE  | 0.5  | MAF Sensor Signal  | 
X1-42  | --  | --  | Not Used  | 
X1-43  | --  | --  | Not Used  | 
X1-44  | --  | --  | Not Used  | 
X1-45  | --  | --  | Not Used  | 
X1-46  | --  | --  | Not Used  | 
X1-47  | PK/BK  | 0.75  | Voltage PT-1  | 
X1-48  | --  | --  | Not Used  | 
X1-49  | BN/WH  | 0.5  | HO2S Low Signal (Bank 2 Sensor 2)  | 
X1-50  | D-GN/WH  | 0.5  | Fuel Pump Relay Control (Primary)  | 
X1-51  | --  | --  | Not Used  | 
X1-52  | YE  | 0.5  | Starter Relay Coil Control  | 
X1-53  | --  | --  | Not Used  | 
X1-54  | --  | --  | Not Used  | 
X1-55  | --  | --  | Not Used  | 
X1-56  | WH/BK  | 0.5  | 5-Volt Reference  | 
X1-57  | --  | --  | Not Used  | 
X1-58  | D-GN  | 0.5  | Low Speed Cooling Fan Relay Control  | 
X1-59  | BN  | 0.5  | Main Relay Control  | 
X1-60  | --  | --  | Not Used  | 
X1-61  | --  | --  | Not Used  | 
X1-62  | --  | --  | Not Used  | 
X1-63  | --  | --  | Not Used  | 
X1-64  | OG/WH  | 0.5  | HO2S Heater Low Control (Bank 2 Sensor 2)  | 
X1-65  | BN  | 0.5  | HO2S Heater Low Control (Bank 1 Sensor 2)  | 
X1-66  | --  | --  | Not Used  | 
X1-67  | --  | --  | Not Used  | 
X1-68  | BN/WH  | 0.5  | MIL Control  | 
X1-69  | PU  | 0.5  | HO2S High Signal (Bank 2 Sensor 2)  | 
X1-70  | L-BU  | 0.5  | Fuel Level Sensor Signal (Secondary)  | 
X1-71  | --  | --  | Not Used  | 
X1-72  | --  | --  | Not Used  | 
X1-73  | BK  | 2.0  | Ground  | 
 
 | |||
|---|---|---|---|
Connector Part Information  | |||
Pin  | Wire Colour  | Wire Size  | Function  | 
X2-1  | --  | --  | Not Used  | 
X2-2  | L-GN  | 0.5  | 5-Volt Reference  | 
X2-3  | GY  | 0.5  | 5-Volt Reference  | 
X2-4  | --  | --  | Not Used  | 
X2-5  | BN  | 0.75  | TAC Motor Control - 2  | 
X2-6  | YE  | 0.75  | TAC Motor Control - 1  | 
X2-7  | --  | --  | Not Used  | 
X2-8  | D-GN/WH  | 0.5  | EVAP Canister Purge Solenoid Control  | 
X2-9  | --  | --  | Not Used  | 
X2-10  | --  | --  | Not Used  | 
X2-11  | L-GN  | 0.75  | Reverse Lockout Solenoid Control  | 
X2-12  | GY/WH  | 0.5  | HO2S Heater Low Control (Bank 1 Sensor 1)  | 
X2-13  | L-GN  | 0.5  | HO2S Heater Low Control (Bank 2 Sensor 1)  | 
X2-14  | --  | --  | Not Used  | 
X2-15  | --  | --  | Not Used  | 
X2-16  | --  | --  | Not Used  | 
X2-17  | D-BU/WH  | 0.75  | Fuel Injector 8 Control  | 
X2-18  | BN/WH  | 0.75  | Fuel Injector 5 Control  | 
X2-19  | YE/BK  | 0.75  | Fuel Injector 6 Control  | 
X2-20  | BN/BK  | 0.75  | Fuel Injector 1 Control  | 
X2-21  | YE/D-GN  | 0.5  | ECT Sensor Signal  | 
X2-22  | BN/WH  | 0.5  | Low Reference  | 
X2-23  | D-GN/YE  | 0.5  | Oil Temperature Sensor Signal  | 
X2-24  | BN/RD  | 0.5  | Low Reference  | 
X2-25  | --  | --  | Not Used  | 
X2-26  | D-BU  | 0.5  | Knock Sensor 1 Signal  | 
X2-27  | GY  | 0.5  | Low Reference  | 
X2-28  | --  | --  | Not Used  | 
X2-29  | L-BU  | 0.5  | Knock Sensor 2 Signal  | 
X2-30  | TN  | 0.5  | Low Reference  | 
X2-31  | --  | --  | Not Used  | 
X2-32  | PU/WH  | 0.5  | Generator Field Duty Cycle Signal  | 
X2-33  | BN  | 0.5  | Oil Level Switch Signal  | 
X2-34  | BK  | 0.5  | Low Reference  | 
X2-35  | BN/BK  | 0.5  | Low Reference  | 
X2-36  | --  | --  | Not Used  | 
X2-37  | L-GN/BK  | 0.75  | Fuel Injector 2 Control  | 
X2-38  | PK/BK  | 0.75  | Fuel Injector 3 Control  | 
X2-39  | L-BU/BK  | 0.75  | Fuel Injector 4 Control  | 
X2-40  | OG/BK  | 0.75  | Fuel Injector 7 Control  | 
X2-41  | GY  | 0.5  | 5-Volt Reference  | 
X2-42  | --  | --  | Not Used  | 
X2-43  | GY  | 0.5  | 5-Volt Reference  | 
X2-44  | OG  | 0.5  | 5-Volt Reference  | 
X2-45  | --  | --  | Not Used  | 
X2-46  | --  | --  | Not Used  | 
X2-47  | --  | --  | Not Used  | 
X2-48  | --  | --  | Not Used  | 
X2-49  | --  | --  | Not Used  | 
X2-50  | BN/WH  | 0.5  | Oil Pressure Sensor Signal  | 
X2-51  | --  | --  | Not Used  | 
X2-52  | --  | --  | Not Used  | 
X2-53  | OG/BK  | 0.5  | Low Reference  | 
X2-54  | --  | --  | Not Used  | 
X2-55  | --  | --  | Not Used  | 
X2-56  | BN/YE  | 0.5  | HO2S Low Signal (Bank 1 Sensor 1)  | 
X2-57  | PU/WH  | 0.5  | HO2S High Signal (Bank 1 Sensor 1)  | 
X2-58  | L-GN  | 0.5  | MAP Sensor Signal  | 
X2-59  | PU  | 0.5  | HO2S High Signal (Bank 2 Sensor 1)  | 
X2-60  | BN/RD  | 0.5  | HO2S Low Signal (Bank 2 Sensor 1)  | 
X2-61  | OG/WH  | 0.5  | Generator Turn On Signal  | 
X2-62  | --  | --  | Not Used  | 
X2-63  | PU  | 0.5  | TP Sensor 2 Signal  | 
X2-64  | BN/WH  | 0.5  | CMP Sensor Signal  | 
X2-65  | D-GN  | 0.5  | TP Sensor 1 Signal  | 
X2-66  | PK/BK  | 0.5  | Low Reference  | 
X2-67  | --  | --  | Not Used  | 
X2-68  | D-BU/WH  | 0.5  | CKP Sensor Signal  | 
X2-69  | YE/BK  | 0.5  | Low Reference  | 
X2-70  | PU  | 0.5  | IC 1 Control  | 
X2-71  | PU/WH  | 0.5  | IC 8 Control  | 
X2-72  | OG  | 0.5  | IC 7 Control  | 
X2-73  | OG/WH  | 0.5  | IC 2 Control  | 
X2-74  | L-BU/WH  | 0.5  | IC 6 Control  | 
X2-75  | D-GN/RD  | 0.5  | IC 5 Control  | 
X2-76  | D-GN/WH  | 0.5  | IC 4 Control  | 
X2-77  | L-BU  | 0.5  | IC 3 Control  | 
X2-78  | BN  | 0.5  | Low Reference  | 
X2-79  | BN/WH  | 0.5  | Low Reference  | 
X2-80  | --  | --  | Not Used  |