Suzuki Liana RH413, Service Manual

Page: 827 / 1302

Heater and Ventilation: 7A-9
Fail-Safe Table
S3RH0A7104005
When any of the following malfunctions (DTCs) is detected, HVAC control module enters fail-safe mode. However,
when HVAC control module detects normal operation of A/C system, fail-safe mode is canceled.
Scan Tool Data
S3RH0A7104006
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.
DTC
No.
Trouble Area
Fail-Safe Operation
Detection of malfunction when
ignition switch is turned ON
Detection of malfunction during
ignition switch is ON
)
B1511
Temperature control actuator
(position sensor) and/or its circuit
The operation of actuator stops.
)
B1512
Air flow control actuator (position
sensor) and/or its circuit
)
B1513
Temperature control actuator and/
or its circuit
)
B1514
Air flow control actuator and/or its
circuit
)
B1520
Temperature selector and/or its
circuit
Middle position
)
B1521
Blower speed selector and/or its
circuit
1st position
)
B1522
Air flow selector and/or its circuit DEF position
Scan Tool Data Condition Normal Condition / Reference Value
)
TEMP CONT SWITCH
Each reference value is relative to the position of
temperature selector of HVAC control module.
Max Cool, P1, P2 – P20, P21, Max Hot
)
MODE CONT SWITCH
Each reference value is relative to the position of air
flow selector of HVAC control module. VENT, BI-LEVEL, FOOT, DEF-FOOT,
DEF
)
FAN CONT SWITCH
Each reference value is relative to the position of
blower speed selector of HVAC control module.
OFF, 1st, 2nd – 7th, 8th
)
FAN DESIRE VOLT
Reference value is relative to the position of blower
speed selector of HVAC control module.
0 – 15.5 V
)
AIR MIX POS SENSOR
Reference value is relative to the position of
temperature selector of HVAC control module. about 1.0 V (Max Hot)
about 4.0 V (Max Cool)
)
MODE POS SENSOR
Reference value is relative to the position of airflow
selector of HVAC control module. about 1.0 V (DEF)
about 4.0 V (VENT)
)
BLOWER FAN LOAD
Position of blower speed selector is 1st or 2nd
position.
ON
Position of blower speed selector is more than 3rd
position.
OFF
)
AIR INTAKE MODE
Fresh air (FRE) mode is activated. FRE
Recirculation air (REC) mode is activated. REC
)
REC INDICATOR
LAMP
Recirculation air (REC) indicator lamp is lighted. ON
Recirculation air (REC) indicator lamp is not lighted. OFF
)
FRE INDICATOR LAMP
Fresh air (FRE) indicator lamp is lighted ON
Fresh air (FRE) indicator lamp is not lighted OFF
)
REAR DEF INDICATOR
LAMP
Rear defogger indicator lamp is lighted ON
Rear defogger indicator lamp is not lighted OFF