Horn - Weak Alarm System Confirmation Chirp: Overview

Article No.
02-1-2

01/21/02

ELECTRICAL - WEAK HORN CHIRP CONFIRMATION
WHEN USING KEY FOB AND/OR INOPERATIVE
HORN WHEN ENGINE IS OFF

FORD:
2001-2002 EXPEDITION

LINCOLN:
2001-2002 NAVIGATOR

ISSUE
Some vehicles may exhibit a weak horn chirp confirmation when the key fob is used, or an inoperative horn when the engine is not running. This may be due to excessive voltage drop in the horn relay circuit that resulted when the circuit was lengthened on 2001 and 2002 vehicles.

ACTION
Verify condition. Decrease the circuit resistance by shortening the horn relay circuit and using a larger gauge wire. Refer to the following Service Procedure for details.

OTHER APPLICABLE ARTICLES: 01-10-12

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

020102A Shorten The Horn Relay 1.1 Hrs.
Circuit, Using A Larger
Gauge Wire

DEALER CODING
CONDITION
BASIC PART NO. CODE
12A005 42

OASIS CODES: 203000, 203200, 205000