Suzuki 2006 SX4, Service Manual

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Air Conditioning System: Automatic Type 7B-74
DTC B1562: Outside Air Temperature Signal Failure
S6RW0C7224025
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1563: A/C Refrigerant Pressure Signal Failure
S6RW0C7224026
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC detecting condition Trouble area
HVAC control module receives invalid data of outside air temperature signal
from BCM. • Outside air temperature sensor
circuit
• Outside air temperature sensor
• HVAC control module
Step Action Yes No
1 Was “Air Conditioning System Check” performed? Go to Step 2. Go to “Air Conditioning
System Check”.
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check DTC in BCM.
Is DTC B1141 or B1142 detected?
Go to applicable DTC
diag. flow. Substitute a known-
good HVAC control
module and recheck.
DTC detecting condition Trouble area
HVAC control module receives invalid data of A/C refrigerant pressure signal
from BCM. • A/C refrigerant pressure sensor
circuit
• A/C refrigerant pressure sensor
• HVAC control module
Step Action Yes No
1 Was “Air Conditioning System Check” performed? Go to Step 2. Go to “Air Conditioning
System Check”.
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check DTC in ECM.
Is DTC P0532 or P0533 detected?
Go to applicable DTC
diag. flow. Substitute a known-
good HVAC control
module and recheck.