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*Read This First*

NOTE: Use the CONNECTOR IDENTIFICATION INDEX  table to link to the illustrations of specific connector groups.
NOTE: The commercial chassis is the P42 model and the motor home chassis is the P32 model.
CONNECTOR IDENTIFICATION INDEX

Application Connector Group
Connectors C100 To C400 CONNECTORS C100 TO C400 
A/C Compressor Clutch Relay RELAY - COMMERCIAL CHASSIS (MULTIPLE APPLICATIONS) 
A/C Compressor Control Relay RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Auxiliary Engine Coolant Fan Relay (L57 Only) RELAY - COMMERCIAL CHASSIS (MULTIPLE APPLICATIONS) 
Backup Lamp Switch Connectors PARK/NEUTRAL POSITION (PNP) & BACKUP LAMP SWITCH CONNECTORS 
Brake/Transmission Shift Interlock (BTSI) Connectors
BTSI (Commercial Chassis) RELAY - COMMERCIAL CHASSIS (MULTIPLE APPLICATIONS) 
BTSI (Motor Home Chassis) RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Clutch Pedal Position Switch CLUTCH PEDAL POSITION SWITCH 
Cruise Control Module (L29, L19 & MT1) CRUISE CONTROL MODULE (L29, L19 & MT1) 
Cruise Control Switch CRUISE CONTROL SWITCH 
Data Link Connectors DATA LINK CONNECTORS 
Daytime Running Lamps (DRL) Control Module DAYTIME RUNNING LAMPS (DRL) CONTROL MODULE 
Daytime Running Lamp (DRL) Relay Connectors
Daytime Running Lamp (DRL) Relay FUEL PUMP (FP) RELAY & DAYTIME RUNNING LAMP (DRL) RELAY 
DRL Relay #2 (HPR/Z49) RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Electronic Brake Control Module Connectors ELECTRONIC BRAKE CONTROL MODULE CONNECTORS 
Electric Ignition Coil Driver Module IDLE AIR CONTROL (IAC) VALVE & ELECTRIC IGNITION COIL DRIVER MODULE 
Electronic Ignition Control Module (L29, L19 & MT1) IDLE AIR CONTROL VALVE MOTOR (L29, L19 & MT1) & ELECTRONIC IGNITION CONTROL MODULE (L29, L19 & MT1) 
Exhaust Gas Recirculation Valve Connectors
Exhaust Gas Recirculation Valve (L35/L31) EXHAUST GAS RECIRCULATION VALVE (L35/L31) 
Exhaust Gas Recirculation Valve Solenoid EXHAUST GAS RECIRCULATION VALVE SOLENOID 
Fan Control Relay RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Fuel Injector (L29) FUEL INJECTOR (L29) 
Fuel Pump (FB) Relay FUEL PUMP (FP) RELAY & DAYTIME RUNNING LAMP (DRL) RELAY 
Generator Connectors GENERATOR CONNECTORS 
Glow Plug Control Switch GLOW PLUG CONTROL SWITCH 
Headlamp Dimmer Switch Connectors HEADLAMP DIMMER SWITCH CONNECTORS 
Headlamps Switch HEADLAMPS SWITCH 
Heated Oxygen Sensor Connectors HEATED OXYGEN SENSOR CONNECTORS 
Horn Relay Connectors
Horn Relay (Commercial Chassis) RELAY - COMMERCIAL CHASSIS (MULTIPLE APPLICATIONS) 
Horn Relay (Motor Home Chassis) RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Idle Air Control (IAC) Valve IDLE AIR CONTROL (IAC) VALVE & ELECTRIC IGNITION COIL DRIVER MODULE 
Idle Air Control Valve Motor (L29, L19 & MT1) IDLE AIR CONTROL VALVE MOTOR (L29, L19 & MT1) & ELECTRONIC IGNITION CONTROL MODULE (L29, L19 & MT1) 
Ignition Switch Connectors IGNITION SWITCH CONNECTORS 
Instrument Cluster Connectors INSTRUMENT CLUSTER CONNECTORS 
Instrument Panel Lamps Dimmer Switch INSTRUMENT PANEL LAMPS DIMMER SWITCH 
Park/Neutral Position (PNP) Connectors PARK/NEUTRAL POSITION (PNP) & BACKUP LAMP SWITCH CONNECTORS 
Power Brake (P/B) Booster Fluid Flow & Pressure Indicator/Alarm Delay Module (School Bus) POWER BRAKE (P/B) BOOSTER FLUID FLOW & PRESSURE INDICATOR/ALARM DELAY MODULE (SCHOOL BUS) 
Seat Belt Alarm SEAT BELT ALARM 
Seat Belts/Lamps Alarm SEAT BELTS/LAMPS ALARM 
Starter Relay Connectors
Starter Relay (Commercial Chassis) RELAY - COMMERCIAL CHASSIS (MULTIPLE APPLICATIONS) 
Starter Relay (Motor Home Chassis) RELAY - MOTOR HOME CHASSIS (MULTIPLE APPLICATIONS) 
Stop Lamps Switch TORQUE CONVERTER CLUTCH & STOP LAMPS SWITCH 
Torque Converter Clutch TORQUE CONVERTER CLUTCH & STOP LAMPS SWITCH 
Transmission Control Module (TCM) Connectors TRANSMISSION CONTROL MODULE (TCM) CONNECTORS 
Vehicle Speed Sensor Buffer Connectors
Vehicle Speed Sensor (VSS) Buffer (Diesel) VEHICLE SPEED SENSOR (VSS) BUFFER (DIESEL) & VEHICLE SPEED SENSOR CALIBRATOR (L19/L65) 
Vehicle Speed Sensor Buffer C2 (L19 & MT) VEHICLE SPEED SENSOR BUFFER C2 (L19 & MT1) 
Vehicle Speed Sensor Calibrator (L19/L65) VEHICLE SPEED SENSOR (VSS) BUFFER (DIESEL) & VEHICLE SPEED SENSOR CALIBRATOR (L19/L65) 
Windshield Wiper Connectors
Windshield Wiper Motor WINDSHIELD WIPER MOTOR 
Windshield Wiper Switch WINDSHIELD WIPER SWITCH