Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
The horn is inoperative	Circuitry Horn relay Horn switch (part of driver air bag module) Horn Clockspring	GO to PINPOINT TEST A .
The horn is always on	Circuitry Clockspring Horn relay Horn switch (part of driver air bag module) Vehicle security module Tire pressure monitoring system (TPMS) module	GO to PINPOINT TEST B .
High horn effort	Horn switch (part of driver air bag module) Driver air bag module	GO to PINPOINT TEST C .