Dtc Table - Suzuki SX4 Service Manual

7B-50 Air Conditioning System: Automatic Type
Not Using SUZUKI Scan Tool
1) Display history DTC by HVAC control module
referring to "Not Using SUZUKI Scan Tool" under
"DTC Check".
2) Press air intake selector (1) and "A/C" switch (2) at
the same time for 5 seconds or more.

DTC Table

CAUTION
!
Be sure to perform "Air Conditioning System Check: Automatic Type" before starting diagnosis.
NOTE
• History DTC is such DTC which HVAC control module saves in its memory when it detects current
DTC for 60 seconds or more continuously.
• DTC B1504, B1541, B1546, B1570 and B1571 are displayed as a current DTC only when a current
malfunction is detected.
• When HVAC control module detects DTC B1513 and B1514, both current and history DTCs are
displayed at the same time.
DTC No.
(displayed
Detection item
on SUZUKI
scan tool)
Inside Air
Temperature
B1502
Sensor Circuit
Malfunction
Evaporator
Temperature
B1503
Sensor Circuit
Malfunction
Sun load Sensor
B1504 Circuit
Malfunction
Temperature
Control Actuator
B1511 (Position Sensor)
and/or Its Circuit
Malfunction
Air Flow Control
Actuator
B1512 (Position Sensor)
and/or Its Circuit
Malfunction
DTC (indicated on
HVAC control
module)
Indicated Indicated
determined when following condition detected)
by "REC" by "FRE"
indicator indicator
light light
Signal voltage of inside air temperature sensor is
2 1
higher than specification.
Signal voltage of inside air temperature sensor is
2 2
lower than specification.
Signal voltage of evaporator temperature sensor is
3 1
higher than specification.
Signal voltage of evaporator temperature sensor is
3 2
lower than specification.
• Signal voltage of sun load sensor is higher than
4 1
• Without sunlight.
Signal voltage of sun load sensor is lower than
4 2
specification.
Signal voltage of position sensor included in
6 1 temperature control actuator is higher than
specification.
Signal voltage of position sensor included in
6 2 temperature control actuator is lower than
specification.
Signal voltage of position sensor included in airflow
7 1
control actuator is higher than specification.
Signal voltage of position sensor included in airflow
7 2
control actuator is lower than specification.
2
3) After completing above Steps, turn ignition switch to
OFF position.
4) Perform "DTC Check" and confirm if normal DTC is
indicated.
Condition when trouble detected (DTC is
specification.
1
I5RW0A722007-01
S7RW0A7224006
"A/C"
indicator
light
Flashed
Flashed
Flashed
Flashed
—
Flashed
Flashed
Flashed
Flashed
Flashed