01-21
      
Notes:  
     
1997   If A/C control head -E87- is unable to 
determine the duration of time when ignition is 
off ("standing time"), DTC 01206 "signal for time 
span ignition off" is loaded into memory. The 
A/C control head will then default to a standing 
time greater than 4 hours. The actual measured 
values of the outside temperature sensor are 
then used as instantaneous outside and engine 
temperature inputs for A/C system control. 
When the "heating" mode is selected under 
these conditions, fresh air blower -V2- has a 
delayed start (even when the actual standing 
time is less than 4 hours and the engine is 
warm)  page 01
-86
 , Read Measuring Value 
Block. The outside air temperature display -
G106- may also indicate incorrect outside 
temperature values. 
     
If both display fields of the A/C control head do 
not light with ignition switched on check control 
head coding   Page 01
-57
 . 
Pa
ge 27 of 91 A/C s
ystem, On Board Dia
gnostic 
(OBD
)
11/21/2002 htt
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