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413-13-7 Parking Aid 413-13-7 DESCRIPTION AND OPERATION Front parking aid speaker E89774 The front parking aid speaker is located within the instrument panel behind the instrument cluster. For additional information, refer to: Front Parking Aid Speaker (413-13 Parking Aid, Removal and Installation). Rear parking aid speaker E89773 The rear parking aid speaker is used to indicate failure modes within the front and rear parking aids. If the rear parking aid speaker becomes defective, the front parking aid speaker will then be used to indicate failure modes. For additional information, refer to: Rear Parking Aid Speaker - 4-Door (413-13 Parking Aid, Removal and Installation). Parking aid module E89772 The parking aid module has three connectors which provide for power, ground and CAN bus connections, front and rear parking aid sensors, parking aid switch, LED and parking aid speakers. The medium speed CAN bus connections provide for the receipt of the following information from other systems: ‡ ABS (anti-lock brake system) module - Road speed signal ‡ Generic electronic module (GEM) - Reverse gear engaged signal, vehicle configuration parameters, carmode and powermode ‡ Electronic parking brake (EPB) ‡ Transmission control unit - Gear selector position (automatic transmission) ‡ Trailer module - Trailer connection status The parking aid module carries out self-check routines and when the parking aid is active, checks the parking aid sensor wiring for short or open circuits. If a concern is detected, a diagnostic trouble code (DTC) is stored in a memory in the parking aid module and the front and rear parking aid sensors will be disabled until the DTC is cleared and the ignition cycled. The driver is made aware of any concern condition by the parking aid switch LED flashing and a continuous high pitch warning tone being emitted for 3 seconds when the parking aid is activated, in place of the normal short tones when the parking aid is functioning normally. DTCs can be read using the Ford approved diagnostic tool through the data link connector (DLC). For additional information, refer to: Parking Aid Module (413-13 Parking Aid, Removal and Installation).