Suzuki 2006 SX4, Service Manual

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7-ii Table of Contents
Compressor Drive Belt Removal and
Installation.......................................................7B-30
Compressor Assembly Removal and
Installation.......................................................7B-30
Compressor Assembly Components.................7B-31
Magnet Clutch Inspection..................................7B-31
Magnet Clutch Removal and Installation...........7B-32
Thermal Switch Inspection ................................7B-34
Thermal Switch Removal and Installation .........7B-34
Relief Valve Inspection......................................7B-35
Relief valve Removal and Installation ...............7B-35
Specifications.....................................................7B-36
Tightening Torque Specifications......................7B-36
Special Tools and Equipment ...........................7B-36
Recommended Service Material .......................7B-36
Special Tool ......................................................7B-36
Automatic Type .....................................................7B-37
Precautions.........................................................7B-37
A/C System Caution..........................................7B-37
Precautions in Diagnosing Trouble ...................7B-37
Precautions on Servicing A/C System ..............7B-37
General Description ...........................................7B-38
Auto A/C System Description............................7B-38
HVAC Control Description.................................7B-39
Sub-Cool A/C System Description ....................7B-39
On-Board Diagnostic System Description.........7B-40
Schematic and Routing Diagram......................7B-40
A/C System Air Flow Diagram...........................7B-40
A/C System Wiring Diagram .............................7B-41
Component Location .........................................7B-43
A/C System Major Components Location .........7B-43
Electronic Control System Components
Location ..........................................................7B-43
Diagnostic Information and Procedures..........7B-44
Air Conditioning System Check.........................7B-44
A/C System Symptom Diagnosis ......................7B-46
Abnormal Noise Symptom Diagnosis of A/C
System ............................................................7B-48
DTC Check........................................................7B-49
DTC Clearance .................................................7B-50
DTC Table.........................................................7B-51
Fail-Safe Table..................................................7B-54
Scan Tool Data .................................................7B-55
Visual Inspection ...............................................7B-57
DTC B1502: Inside Air Temperature Sensor
Circuit Malfunction ..........................................7B-57
DTC B1503: Evaporator Temperature Sensor
Circuit Malfunction ..........................................7B-59
DTC B1504: Sunload Sensor Circuit
Malfunction......................................................7B-60
DTC B1511: Temperature Control Actuator
(Position Sensor) and/or Its Circuit
Malfunction......................................................7B-61
DTC B1512: Air flow Control Actuator
(Position Sensor) and/or Its Circuit
Malfunction......................................................7B-63
DTC B1513: Temperature Control Actuator
(Motor) and/or Its Circuit Malfunction ..............7B-65
DTC B1514: Air Flow Control Actuator (Motor)
and/or Its Circuit Malfunction...........................7B-67
DTC B1520 / B1521 / B1522: Temperature /
Blower Speed / Air Flow Selector
Malfunction......................................................7B-68
DTC B1541: Back-Up Power Supply Circuit
Malfunction......................................................7B-69
DTC B1546: A/C Refrigerant Pressure
Malfunction......................................................7B-70
DTC B1551: Serial Communication Circuit
Malfunction......................................................7B-70
DTC B1552: HVAC Control Module Check
Sum Error........................................................7B-72
DTC B1553: CAN Communication Circuit
Malfunction......................................................7B-72
DTC B1557: VSS Signal Failure .......................7B-73
DTC B1561: ECT Signal Failure .......................7B-73
DTC B1562: Outside Air Temperature Signal
Failure .............................................................7B-74
DTC B1563: A/C Refrigerant Pressure Signal
Failure .............................................................7B-74
DTC B1570: Engine Type Signal Failure ..........7B-75
DTC B1571: Combination Meter Spec Signal
Failure .............................................................7B-75
Inspection of HVAC Control Module and Its
Circuit ..............................................................7B-76
A/C System Inspection at ECM.........................7B-79
Repair Instructions ............................................7B-80
Operation Procedure for Refrigerant Charge ....7B-80
HVAC Unit Components ...................................7B-80
HVAC Unit Removal and Installation ................7B-81
Temperature Control Actuator Removal and
Installation .......................................................7B-81
Temperature Control Actuator and Its Circuit
Inspection........................................................7B-81
Air Flow Control Actuator Removal and
Installation .......................................................7B-83
Air Flow Control Actuator and Its Circuit
Inspection........................................................7B-83
Air Intake Actuator Removal and Installation ....7B-84
Air Intake Actuator Inspection ...........................7B-84
Actuator Linkage Inspection..............................7B-84
Blower Motor Controller Removal and
Installation .......................................................7B-84
Blower Motor Controller Inspection ...................7B-85
HVAC Control Module Removal and
Installation .......................................................7B-85
Sunload Sensor Removal and Installation ........7B-85
Sunload Sensor Inspection ...............................7B-86
Outside Air Temperature Sensor Removal
and Installation ................................................7B-86
Outside Air Temperature Sensor Inspection .....7B-86
Inside Air Temperature Sensor Removal and
Installation .......................................................7B-86
Inside Air Temperature Sensor Inspection........7B-86
Condenser Cooling Fan Relay Inspection.........7B-87
Condenser Cooling Fan Removal and
Installation .......................................................7B-87
Condenser Cooling Fan Inspection...................7B-87
Condenser Assembly On-Vehicle Inspection....7B-87