Digital air- conditioner controller KR- 454
Replace motor valve if necessary (No.1808.001.11)
E43
Setpoint potentiometer front box upper deck discontinuity
Position
:
FBS in the instrument panel above the air-conditioner controller
Reason
:
Cable broken or unit defective
Measure:
Check cable course
Check soldering joint
Exchange unit
E80
No valve potentiometer voltage (+5V)
Position
:
Possible at all valves
Reason
:
Ground contact at a valve potentiometer
Measure
:
Unplug all valves, ignition on, clear all errors, plug on the valves one
after the other and find out the defective valve
E81
No valve potentiometer voltage (+24V)
Position
:
Possible at all valves
Reason
:
Valve outputs overloaded f.ex. if several valves are stiff or servo
motors are stiff or defective (flap fresh air/circulating air, etc.)
Measure
:
Check all valves and replace them if necessary
Unplug plug connection X11 and check if front box errors still occur
E82
Valve assignment (valve potentiometer) error
Position
:
Possible at all valves
Reason
:
Cabling error, valve motor and valve potentiometer interchanged
Measure
:
Check cabling in general
INDUSTRIE-ELEKTRONIK
Control and regulating systems for vehicle air conditioning
D-71691 Freiberg a.N.,
Siemensstr.21
Phone: +49 7141 / 68877 - 0
Fax: +49 7141 / 68877 - 39
page: 41
of:
42
04541530.SDW
Issue: October 1998 - Copyright (C) BADER GmbH - Alterations reserve