52, Graphics Channel 1 (A/C Compressor Switch Off Conditions)

- If compressor switch-off conditions exist, segments of the "88.8" display, identified by alpha-numeric code, will be illuminated.
- Conditions listed below are causes of A/C compressor switch-off.

88.8 Display:

a1 - Slippage or blockage, A/C refrigerant high pressure switch, 120x off
b1 - Engine spd. below 200-500 RPM
c1 -
d1 - Engine spd. over 6000 RPM
e1 -
f1 -
g1 - System function OK, See Note.
a2 - A/C manually switched off (A/C standby canceled)
b2 - Low voltage
c2 - Kick-down switch (via Transmission Control Module (TCM), A/C compressor off for 12 seconds max.)
d2 - Engine Coolant Temperature (ECT) warning light switch
e2 - A/C refrigerant low pressure switch -F73-
f2 - A/C refrigerant high pressure switch -F118-
g2 - System function OK, See Note.
a3 - ECON mode selected
b3 - OFF selected
c3 - Outside (ambient) temperature too low
d3 - Engine management system (compressor will remain off for 3-12 seconds)
e3 - High pressure occurrences more than 30 times
f3 - Ambient temperature sensor at fresh air blower -G109- less than 27 °F (-3 °C)
g3 - System function OK, See Note.
- Decimal point visible; A/C compressor on
- Decimal point not visible; A/C compressor off

NOTE: Segments -g1-, -g2- and -g3- must be illuminated simultaneously to indicate system function is OK.