Troubleshooting - Symptom Chart
15-8spec tableSymptom Chart
No hot air flow
ConditionBlower motor does not run
RemedyPerform the flowchart (page 15-9)
No hot air flow
ConditionBlower motor runs
RemedyCheck following: Clogged heater duct; Clogged blower outlet; Clogged heater valve; Faulty air mix door; Air mix cable adjustment; Faulty thermostat
Hot air flow is low
ConditionBlower speed does not change
RemedyPerform flow chart (page 15-11)
Hot air flow is low
ConditionBlower runs properly
RemedyCheck following: Clogged heater duct; Clogged blower outlet; Incorrect door position
Function does not change
ConditionFunction control motor does not run
RemedyPerform flow chart (page 15-14)
Function does not change
ConditionFunction control motor runs
RemedyCheck for the heater door linkage and cable adjustments.
Recirculation door does not change
ConditionRecirculation motor does not run
RemedyPerform flow chart (page 15-12)
Recirculation door does not change
ConditionRecirculation motor runs
RemedyCheck for the door linkage or perform flow chart (page 15-17)