Suzuki GRAND VITARA User Manual

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-51
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Start engine and run it for 1 min. or more.
3) Stop vehicle and check DTC.
Troubleshooting
Inspection of 4WD Control Module and Its Circuits
S5JB0A3314037
4WD control module and its circuits can be checked at coupler connected to 4WD control module by measuring
voltage, pulse signal.
CAUTION
!
4WD control module cannot be checked by itself. It is strictly prohibited to connect voltmeter or
ohmmeter to 4WD control module with couplers disconnected from it.
DTC detecting condition Trouble area
Reception error of communication data for ABS hydraulic unit /
control module is detected for longer than specified time
continuously.
• CAN communication circuit
• ABS hydraulic unit / control module
• 4WD control module
Step Action Yes No
1 Was “4WD control system check” performed? Go to Step 2. Go to “4WD Control
System Check: Motor-
Shift Type (Transfer with
Shift Actuator)”.
2 DTC check
1) Check DTC in 4WD control module.
Is DTC U1100 and DTC U1073 detected together?
Go to “DTC U1073:
Control Module
Communication Buss
Off: Motor-Shift Type
(Transfer with Shift
Actuator)”.
Go to Step 3.
3 DTC check
1) Check DTC in ABS hydraulic unit / control module.
Is DTC PU1073 detected?
Go to “DTC U1073:
Control Module
Communication Bus
Off: in Section 4E”.
Go to Step 4.
4 Check each control module connectors
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck in 4WD control module.
Is DTC U1100 detected?
Go to Step 5. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection: in Section
00”.
5 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control
modules for open, short and high resistance.
Is each CAN communication circuit in good condition?
Check ABS hydraulic
unit / control module
power and ground
circuit. If circuit is OK,
substitute a known-
good ABS hydraulic unit
/ control module and
recheck.
Repair circuit.

Suzuki GRAND VITARA Specifications

General

Brand	Suzuki
Model	GRAND VITARA
Category	Automobile
Language	English