Lighting and Horns: Locations
Lighting Systems Component Views
Forward Lamps Harness, Left Front View
1 - Park/Turn Signal Lamp - RF
2 - Park/Turn Signal Lamp - LF
3 - Headlamp - Right
4 - Headlamp - Left
Automatic Transmission Harness -Typical- without MTW/MX4/MWF
1 - To Backup Lamp Switch
2 - Vehicle Speed Sensor (VSS)
3 - Automatic Transmission Modulator
4 - Neutral Safety Switch
5 - C408/C409
Manual Transmission Harness, Left Forward View
1 - Backup Lamp Switch
2 - Vehicle Speed Sensor (VSS) (JE4)
3 - Vehicle Speed Sensor (VSS) (JE3)
Instrument Panel Harness to Instrument Panel, Left Front
1 - Windshield Wiper Motor
2 - Upfitter AUX WRG Connector, Exterior
3 - Trailer Stop Lamp Switch
4 - C107
5 - C113
6 - Differential Lock Switch
Instrument Panel Harness to IP Mounted Components, Right Front View
1 - Power Brake (P/B) Booster Pump Motor Relay
2 - Park Brake Pump Motor Relay
3 - Trailer Stop Lamp Relay
4 - Transmission Control Relay - MTW/MX4/Ignition Relay - Engine Controls - L18
5 - ABS Relay Center
6 - Fuse Block 2 - Underhood
7 - Fuse Block 1 - Underhood
8 - C123
9 - C121
10 - Windshield Washer Fluid Pump
11 - Windshield Washer Reservoir
IP Harness to Components, Right View
1 - Stop Lamp Switch Interface Module
2 - Convenience Center
3 - SERVICE TRANS FILTER Indicator Lamp
4 - Seat Belt Indicator Lamp
5 - Upfitter Accessory Feed Connector
6 - C210
7 - Upfitter AUX WRG Connector, Interior
8 - Daytime Running Lamps (DRL) Diode
9 - Blower Motor C1
10 - Blower Motor C2
11 - C208
12 - G210
13 - Speaker - RF
Rear of Instrument Panel, Top View
1 - Tractor Marker Lamps Relay or Column Shift Relay (LG5)/Transmission Park Column Switch Relay (L18)
2 - Lighting Relay
3 - Ignition 3 Relay
4 - Power Window Relay-L18/Late LG5
5 - Horn Relay
6 - Convenience Center
7 - Power Window Relay-Early LG5
8 - Blower Relay 2
9 - Blower Relay 1
10 - Accessory Relay
11 - Daytime Running Lamps (DRL) Control Module
12 - Fuel Pump Relay (L18)/Fuel Heater Relay (LG5)
13 - Daytime Running Lamps Relay
14 - Daytime Running Lamps (DRL) Diode
15 - Auxiliary Wiring Relay
Heater Controls, Rear View
1 - Heater Control
2 - Blower Motor Switch
3 - Heater Control Lamp
4 - Blower Motor Diode Module
5 - Heater Control Lamp
Instrument Panel Harness to Instrument Panel, Right Front View
1 - Ignition Switch
2 - Park Brake Switch (JE3/J71)
3 - Turn Signal/Multifunction Switch C3
4 - Turn Signal/Multifunction Switch C2
5 - Turn Signal/Multifunction Switch C1
6 - Headlamp Dimmer Switch
7 - Turn Signal/Hazard Flasher Module
8 - Park/Neutral (PNP) Switch C3
9 - Park/Neutral (PNP) Switch C2
10 - Park/Neutral (PNP) Switch C1
11 - Accelerator Pedal Position (APP) Sensor
12 - Low Air Pressure Switch
13 - Stop Lamp Switch
Fuel Pump Prime, Data Link Connector (DLC)
1 - Instrument Panel
2 - Door Jamb Switch - Driver
3 - Fuel Pump Prime Connector
4 - Data Link Connector (DLC)
5 - Headlamp Switch
6 - IP Dimmer Switch
Lower IP Components
1 - C215
2 - Ashtray Lamp
3 - Auxiliary Power Posts
4 - Cigar Lighter
Hazard Switch, IP Mounted
1 - Hazard Switch, Hazard Indicator Lamp
Instrument Panel, Left View
1 - Trailer Marker Lamp Switch
2 - Outside Heated Mirror Switch
3 - Exhaust Brake Switch
Steering Column, Left Forward View
1 - Ignition Switch
2 - Headlamp Dimmer Switch
3 - G208
Hazard Switch, Column Mounted
1 - Hazard Switch
Cab Interior, Lower Left Side
1 - G211
2 - C223
3 - Park Brake Pressure Indicator Switch
Cab, Top View
1 - Dome Lamp
Cab Exterior, Upper Left Front View
1 - Marker Lamps - Roof
2 - Clearance Lamps
3 - C229
Rear of Cab, Left Rear View
1 - Tractor/Trailer Receptacle
Rear of Chassis, Left Rear View
1 - Tail Lamp - Left
2 - Tail Lamp - Right