Exterior Lighting - Thunderbird: Overview Ford Thunderbird XI

Principles of Operation

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM) and the instrument cluster must be reconfigured before installing a new module. Refer to MODULE COMMUNICATIONS NETWORK .

The vehicle's electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM) and the instrument cluster must be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle's electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM) and the instrument cluster must be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle's electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM), and the instrument cluster must all be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM), and the instrument cluster must all be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM), and the instrument cluster must all be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.

Note. The Front Electronic Module (FEM), the Rear Electronic Module (REM), and the instrument cluster must all be reconfigured before installing a new module. Refer to MODULE CONFIGURATION .

The vehicle electronic functions are divided into zones. The FEM controls the front portion of the vehicle and the REM controls the rear portion of the vehicle. These systems rely heavily on the Standard Corporate Protocol (SCP) communication network in order to transmit and receive signals. It is very important to understand

1. where the input (command) originates from.
2. all information (messages) necessary in order for a feature to operate.
3. which module(s) receive(s) the input or command message.
4. does the module which received the input (message), control the output of the feature, or does it output a message over the SCP communication network to another module?
5. which module controls the output of the feature.

The exterior lighting outputs are zone controlled by the FEM and REM. The front exterior lights are controlled by the FEM and the rear exterior lights are controlled by the REM. The headlamp and multifunction switches are hardwired to the instrument cluster. When the lamps are commanded ON or OFF, the instrument cluster sends the command for the exterior lamps through the Standard Corporate Protocol (SCP) network to the FEM and REM. To provide complete input and output functionality, each exterior lamp feature will be described individually. All exterior lighting is powered by the Switched System Power (SSP) feature (refer to SWITCHED SYSTEM POWER (SSP) ). A failure of all or any of the SSP features will cause inoperative exterior lighting. When diagnosing exterior lighting, it is essential to determine if all related symptoms and DTCs are controlled by the SSP feature.