Scan Tool Data - Suzuki 2006 SX4 Service Manual

7B-55 Air Conditioning System: Automatic Type
DTC No. Trouble Area
Outside air
B1562 temperature signal
failure
Engine type signal
B1570
failure
Combination meter
B1571
spec signal failure

Scan Tool Data

As the data values given in the following are standard values estimated on the basis of values obtained from the
normally operation vehicles by using a scan tool, use them as reference values. Even when the vehicles are in good
condition, there may be cases where the checked values do not fall within each specifies data range. Therefore,
judgement as abnormal should not be made by checking with these data alone.
Scan Tool Data
TEMP CONT
SWITCH
CABIN
TEMPERATURE
OUTSIDE AIR TEMP Ignition switch turned ON
EVAPORATOR
TEMP
COOLANT TEMP
SUN LOAD
MODE CONT
SWITCH
FAN CONT SWITCH
FAN DESIRED VOLT
AIR MIX POS SEN
MODE POS SENSOR
A/C CONT SIG
BLOWER LOAD SIG
When ignition switch is turned ON
after malfunction is already detected
HVAC control module maintains last
normal value of outside air
temperature.
4 seconds after, HVAC control module
assuming that outside air temperature
is 20 °C (68 °F).
HVAC control module controls actuators assuming that engine type signal is J20.
HVAC control module controls actuators assuming that combination meter spec
signal is US.
Condition
Ignition switch turned ON and temperature selector
at maximum cool position
Ignition switch turned ON
Ignition switch turned ON
Ignition switch turned ON
Reference value depends on the situation
Ignition switch turned ON and air flow selector at
AUTO position
Ignition switch turned ON and blower speed selector
at AUTO position
Ignition switch turned ON and blower speed selector
at High
Ignition switch turned ON and blower speed selector
at Low
Ignition switch turned ON and temperature selector
at maximum cool position
Ignition switch turned ON and temperature selector
at maximum hot position
Ignition switch turned ON and air flow selector at
DEF position
Ignition switch turned ON and air flow selector at
VENT position
A/C switch turned ON, blower speed selector at other
than OFF position with engine running
A/C switch turned OFF with engine running
Ignition switch turned ON, blower speed selector at
other than OFF position
Ignition switch turned ON, blower speed selector at
OFF position
Fail-Safe Operation
When malfunction is detected during
ignition switch is ON
HVAC control module controls actuators
assuming that outside air temperature is
20 °C (68 °F).
Normal Condition / Reference
MAX Cool (Selected position of
temperature selector is displayed)
In-car temperature is displayed
Outside air temperature is displayed
Evaporator temperature is displayed
Engine coolant temperature is
0 W/m
AUTO (Selected position of air flow
selector is displayed)
AUTO (Selected position of blower
speed selector is displayed)
S6RW0C7224008
Value
displayed
2 – 1988 W/m 2
Approx. 12.0 V
Approx. 4.0 V
Approx. 0.5 V
Approx. 4.5 V
Approx. 4.5 V
Approx. 0.5 V
ON
OFF
ON
OFF