Contents Wiring diagrams Section: Warning System All sections

Parking Aid System: Overview Ford Explorer V

Warning System 2 illustrations ~368 words

Overview

The parking aid system sounds a warning to alert the driver of stationary objects near the rear bumper when REVERSE is selected. The rear sensors are activated when REVERSE is selected. The parking aid system assists the driver in detecting certain objects while the vehicle moves slowly in REVERSE at speeds of less than 4.8 kmh (3 mph). The parking aid system may not detect moving objects.

The parking aid system is active when the ignition switch is in the RUN position and the transmission in REVERSE. The parking aid system is disabled if a fault is detected in 1 of the 4 sensors, the parking aid speaker, or the PAM. This is indicated by a parking aid disabled warning message in the message center.

The parking aid system is enabled and disabled through the message center, located in the IPC.

If a MyKey® restricted key is in the ignition cylinder, the parking aid menu is not available in the message center and cannot be deactivated.

Scheme 2

Scheme 2: System Diagram

The video camera system visually aids the driver while reversing or reverse parking the vehicle. The video camera system is controlled though the FDIM. Refer to the Owner's Literature for information on how to operate the video camera system features.

Scheme 3

Scheme 3: System Diagram

Normal Operation and Fault Conditions

REFER to Parking Aid System Operation .

If a MyKey® restricted key is in the ignition cylinder, the parking aid menu is not available in the message center and cannot be deactivated.

DTCDescriptionFault Trigger Conditions
B1B44:14Right Rear Outer Sensor: Circuit Short To Ground Or OpenA continuous and on-demand DTC that sets when any of the right rear outer parking aid sensor circuits are open or the sensor signal line is shorted to ground.
B1B46:14Right Rear Inner Sensor: Circuit Short To Ground Or OpenA continuous and on-demand DTC that sets when any of the right rear inner parking aid sensor circuits are open or the sensor signal line is shorted to ground.
B1B48:14Left Rear Outer Sensor: Circuit Short To Ground Or OpenA continuous and on-demand DTC that sets when any of the left rear outer parking aid sensor circuits are open or the sensor signal line is shorted to ground.
B1B50:14Left Rear Inner Sensor: Circuit Short To Ground Or OpenA continuous and on-demand DTC that sets when any of the left rear inner parking aid sensor circuits are open or the sensor signal line is shorted to ground.

DTC FAULT TRIGGER CONDITIONS

DTCDescriptionFault Trigger Conditions
B1B44:12Right Rear Outer Sensor: Circuit Short To BatteryA continuous and on-demand DTC that sets when the right rear outer parking aid sensor signal line is shorted to battery voltage.
B1B46:12Right Rear Inner Sensor: Circuit Short To BatteryA continuous and on-demand DTC that sets when the right rear inner parking aid sensor signal line is shorted to battery voltage.
B1B48:12Left Rear Outer Sensor: Circuit Short To BatteryA continuous and on-demand DTC that sets when the left rear outer parking aid sensor signal line is shorted to battery voltage.
B1B50:12Left Rear Inner Sensor: Circuit Short To BatteryA continuous and on-demand DTC that sets when the left rear inner parking aid sensor signal line is shorted to battery voltage.

DTC FAULT TRIGGER CONDITIONS

REFER to Parking Aid System Operation .

The attenuation time for the rear parking aid sensors is the time required for a sensor to detect the distance to an object expressed in milliseconds (ms). A fault condition occurs when the signal or the attenuation time is out of normal range.

DTCDescriptionFault Trigger Conditions
B1B44:96Right Rear Outer Sensor: Component Internal FailureA continuous and on-demand DTC that sets when the right rear outer parking aid sensor has internally failed or has an incorrect attenuation time.
B1B46:96Right Rear Inner Sensor: Component Internal FailureA continuous and on-demand DTC that sets when the right rear inner parking aid sensor has internally failed or has an incorrect attenuation time.
B1B48:96Left Rear Outer Sensor: Component Internal FailureA continuous and on-demand DTC that sets when the left rear outer parking aid sensor has internally failed or has an incorrect attenuation time.
B1B50:96Left Rear Inner Sensor: Component Internal FailureA continuous and on-demand DTC that sets when the left rear inner parking aid sensor has internally failed or has an incorrect attenuation time.

DTC FAULT TRIGGER CONDITIONS

DTCDescriptionFault Trigger Conditions
B1B58:11Rear Sensors Power Circuit: Circuit Short to GroundSets when the sensor voltage supply circuit is shorted to ground or to the signal return circuit.

DTC FAULT TRIGGER CONDITIONS

DTCDescriptionFault Trigger Conditions
B1B52:12Rear Sounder-Park Aid: Circuit Short To BatterySets when the sounder circuit is shorted to voltage.
B1B52:14Rear Sounder-Park Aid: Circuit Short To Ground Or OpenSets when the sounder circuit is open or shorted to ground.

DTC FAULT TRIGGER CONDITIONS

REFER to Image Display .

DTCDescriptionFault Trigger Conditions
B115E:08Camera Module: Bus Signal/Message FailureAn on-demand DTC that sets in the BCM when there is a LIN communication fault from the video camera.

BCM DTC FAULT TRIGGER CONDITIONS

DTCDescriptionFault Trigger Conditions
C1001:01Vision System Camera: General Electrical FailureA continuous DTC that sets in the APIM when no video signal is detected from the video camera when the vehicle is in reverse.

APIM DTC FAULT TRIGGER CONDITIONS

REFER to Image Display .

REFER to Visual Park Aid .

REFER to Image Display .

REFER to Visual Park Aid .

The PAM communicates with the BCM through the HS-CAN.