Suzuki Grand Vitara 2011 Manual page 934

3-ii Table of Contents
Input / Output Signal Table of 4WD Control
Module ............................................................3C-10
On-Board Diagnostic System Description.........3C-11
CAN Communication System Description.........3C-12
Schematic and Routing Diagram......................3C-13
4WD Control System Wiring Circuit Diagram....3C-13
Component Location .........................................3C-15
Transfer Shift Control System Components
Location ..........................................................3C-15
Diagnostic Information and Procedures..........3C-16
4WD Control System Check .............................3C-16
Transfer Position Indicator Operation Check ....3C-18
4WD Control System Operation Inspection ......3C-18
Visual Inspection ...............................................3C-20
DTC Check........................................................3C-20
DTC Clearance .................................................3C-21
DTC Table.........................................................3C-22
Fail-Safe Table..................................................3C-23
Scan Tool Data .................................................3C-23
Scan Tool Data Definitions................................3C-24
4WD Control Symptom Diagnosis.....................3C-25
Transfer Position Indicator Does Not Come
ON at Ignition Switch ON but Engine Stops....3C-27
Transfer Position Indicator Remains ON
Steady at Ignition Switch ON ..........................3C-29
DTC C1213: Transfer Switch Circuit Open .......3C-30
DTC C1214: Transfer Switch Circuit Short .......3C-31
DTC C1223 / C1235: Transfer Shift Actuator
Motor Position Switch 1 Circuit Open /
Transfer Shift Actuator Motor Position
Switch 2 Circuit Open .....................................3C-33
DTC C1224 / C1236: Transfer Shift Actuator
Motor Position Switch 1 Circuit Short /
Transfer Shift Actuator Motor Position
Switch 2 Circuit Short......................................3C-35
DTC C1227: 4L/N Switch Circuit Open .............3C-37
DTC C1228: 4L/N Switch Circuit Short .............3C-38
DTC C1230: Transfer Actuator Circuit
Malfunction......................................................3C-40
DTC C1237: Center Differential Lock Switch
Circuit Open ....................................................3C-42
DTC C1238: Center Differential Lock Switch
Circuit Short ....................................................3C-43
DTC C1240: 4WD Control Module Power
Supply Circuit Malfunction ..............................3C-45
DTC C1243: Internal Circuit Malfunction of
4WD Control Module.......................................3C-46
DTC C1246: Clutch Pedal Position (CPP)
Switch Circuit Short.........................................3C-46
DTC U1073: Control Module Communication
Buss Off ..........................................................3C-48
DTC U1100: Lost Communication with ECM ....3C-50
DTC U1121: Lost Communication with ABS /
Electronic Stability Program Hydraulic Unit /
Control Module................................................3C-51
Inspection of 4WD Control Module and Its
Circuits ............................................................3C-52
Repair Instructions ............................................3C-55
Transfer Oil Level Check...................................3C-55
Transfer Oil Change..........................................3C-55
Transfer Oil Seal Removal and Installation .......3C-56
Transfer Switch Removal and Installation .........3C-56
Transfer Switch Inspection................................3C-57
4WD Control Module Removal and
Installation .......................................................3C-57
Transfer Assembly Dismounting and
Remounting.....................................................3C-58
Transfer Assembly Components .......................3C-59
Transfer Assembly Disassembly and
Reassembly ....................................................3C-60
Transfer Assembly Inspection ...........................3C-69
Input Gear Assembly, Counter Gear
Assembly, Front Output Shaft Assembly and
Rear Output Shaft Assembly Components .....3C-71
Input Gear Assembly Disassembly and
Reassembly ....................................................3C-71
Counter Gear Assembly Disassembly and
Reassembly ....................................................3C-72
Front Output Shaft Assembly Disassembly
and Reassembly .............................................3C-73
Rear Output Shaft Assembly Disassembly
and Reassembly .............................................3C-74
Specifications .....................................................3C-75
Tightening Torque Specifications......................3C-75
Special Tools and Equipment ...........................3C-75
Recommended Service Material .......................3C-75
Special Tool ......................................................3C-76
Non-Shift Type (Transfer without Shift
Actuator) ..............................................................3C-77
Precautions.........................................................3C-77
Transfer Warning ..............................................3C-77
General Description ...........................................3C-77
Transfer Construction........................................3C-77
Diagnostic Information and Procedures ..........3C-78
Transfer Symptom Diagnosis............................3C-78
Repair Instructions ............................................3C-79
Transfer Oil Change..........................................3C-79
Transfer Oil Level Check...................................3C-79
Transfer Oil Seal Removal and Installation .......3C-79
Transfer Assembly Dismounting and
Remounting.....................................................3C-79
Transfer Assembly Components .......................3C-80
Transfer Assembly Disassembly and
Reassembly ....................................................3C-81
Input Gear Assembly Disassembly and
Reassembly ....................................................3C-88
Front Output Shaft Assembly Disassembly
and Reassembly .............................................3C-88
Rear Output Shaft Assembly Disassembly
and Reassembly .............................................3C-88
Specifications .....................................................3C-89
Tightening Torque Specifications......................3C-89
Special Tools and Equipment ...........................3C-89
Recommended Service Material .......................3C-89
Special Tool ......................................................3C-89
Propeller Shaft ......................................... 3D-1
Precautions...........................................................3D-1