Vanden Plas L6-4.0L (1990)
Aspirator: Technical Service Bulletins
Climate Control System Instability
SECTION:
82
No:
21
CLIMATE CONTROL SYSTEM
Model:
88-91 MY SEDANS Date: FEBRUARY, 1991
KEY POINTS:
TEMPERATURE INSTABILITY/ LACK OF FOOTWELL HEAT
ISSUE:
Climate Control System instability or lack of front footwell heat resulting in unnecessary replacement of the A/C control panel or ECU.
ACTION:
On pre-VIN 605855 vehicles which exhibit temperature instability, install a motorized aspirator kit (consisting of JLM 1947 and CBC 9133). For kit
installation procedure, refer to Technical Bulletin section 82, number 13.
If additional footwell heat is required on post-VIN 605856 vehicles, select "Manual" mode and increase the temperature setting and adjust the face vent
slide control to the desired temperature.
NOTE:
Do not replace the A/C control panel or ECU unless a permanent component fault exists.
