Connect audio HVAC subdisplay unit connector E (5P) terminals No. 4 and No. 5 with a jumper wire (with audio system) or the HVAC subdisplay unit 10P connector terminals No. 4 and No. 5 with a jumper wire (without audio system).
Turn the ignition switch ON (II).
Press the RECIRCULATION CONTROL and OFF buttons.
Does the rear window defogger or recirculation control indicator turn on?
YES
-
Substitute a known-good audio HVAC subdisplay unit (with audio system) or HVAC subdisplay unit (without audio system), and recheck. If the symptom goes away, replace the original audio HVAC subdisplay unit (with audio system) or HVAC subdisplay unit (without audio system).■
NO
-
Substitute a known-good climate control unit, and recheck. If the symptom goes away, replace the original
climate control unit
.■