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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 585 (Parking Aid System) >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test F: DTC C1742 and C1743 Rear Sounder Circuit Failure/Short To Battery >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

The system can be disabled by the parking aid switch. A 750 Hz variable warning tone is generated from a parking aid speaker. The parking aid speaker increases the warning tone rate as the vehicle gets closer to an obstacle.

DTC C1742 (Rear Sounder Circuit Failure) - sets when the parking aid module senses an open or short to ground on circuit 1437 (BK/PK) or circuit 1438 (DG).

DTC C1743 (Rear Sounder Circuit Short to Battery) - sets when the parking aid module senses a short to voltage on circuit 1438 (DG).

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