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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 975 (Parking Aid System) >> Diagnostic Tests >> Parking Aid >> Pinpoint Tests >> Pinpoint Test G: DTC B2373 or C1920 - LED #1 Circuit Failure >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The parking aid system is enabled when the vehicle ignition is in RUN and the transaxle is in REVERSE (R). The system can be disabled by the parking aid disable switch. The parking aid module sends a signal to the LED through circuit 1436 (VT/OG) when the parking aid is disabled. The switch is grounded through circuit 57 (BK).

DTC B2373 - sets when the parking aid module senses a short to voltage on circuit 1436 (VT/OG).

DTC C1920 - sets when the parking aid module senses an open or short to ground on circuit 1436 (VT/OG).

Possible Causes

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