Suzuki Grand Vitara JB627. Manual - part 154

3C-20 Transfer: 

DTC Clearance

S6JB0B3304006

Using SUZUKI Scan Tool

1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector 

(DLC) (1) located on underside of instrument panel.

Special tool
(A):  SUZUKI scan tool

3) Turn ignition switch to ON position.
4) Erase DTC according to instructions displayed on 

SUZUKI scan tool. Refer to SUZUKI scan tool 
operator’s manual for further details.

5) After completing clearance, turn ignition switch OFF 

and disconnect SUZUKI scan tool from data link 
connector (DLC).

6) Perform “DTC Check” and confirm that NO CODES 

is displayed.

NOTE
DTC and freeze frame data stored in 4WD 
control module memory are also cleared in 
the following cases. Be careful not to clear 
them before keeping their record.
• When power to 4WD control module is cut 

off (by disconnecting battery cable, 
removing fuse or disconnecting 4WD 
control module connectors).

• When the same malfunction (DTC) is not 

detected again during 40 engine warm-up 
cycles.

 

Using Diagnosis Connector

1) Turn ignition switch to ON position.
2) Using service wire short diagnosis switch terminal 

(1) of diagnosis connector (2) and body ground more 
than 5 times at about 1 second interval within 10 
seconds.

3) Wait more than 9 seconds.
4) Perform “DTC Check” and confirm that DTC No. is 

not displayed.

(A)

1

I5JB0A332012-01

1

2

I5JB0A332014-01

Transfer: 3C-21

DTC Table

S6JB0B3304007

NOTE
“O” in transfer position indicator column of the above table means indicator lights up when DTC is 
detected.

 

DTC No.

Detecting item

Detecting condition

(DTC will set when detecting)

Transfer 
position 

indicators

)

 C1213

Transfer switch circuit open

Different switch combination from specification is 
detected.

{

)

 C1214

Transfer switch circuit short

Different switch combination from specification is 
detected.

{

)

 C1223

Transfer shift actuator motor 
position switch 1 circuit open

Actuator position switch signal voltage 4.2 V or 
more.

{

)

 C1224

Transfer shift actuator motor 
position switch 1 circuit short

Actuator position switch signal voltage 0.6 V or 
less.

{

)

 C1227

4L/N switch circuit open

Though actuator position switch is “4L-lock” 
position, the ON signal is not input from the 4L/N 
switch.

{

)

 C1228

4L/N switch circuit short

Though actuator position switch is “4L-lock” 
position, the OFF signal is not input from the 4L/
N switch.

{

)

 C1230

Transfer actuator circuit 
malfunction

• Position switch in transfer shift actuator is not 

changed for 3 seconds even if command 
signal of motor relay for transfer shift actuator 
(included in 4WD control module) is turned on.

or
• Monitor signal from motor relay of transfer 

shift actuator (included in 4WD control 
module) is inconsistent with command signal 
to motor relay of transfer shift actuator.

{

)

 C1235

Transfer shift actuator motor 
position switch 2 circuit open

Actuator position switch signal voltage 4.2 V or 
more.

{

)

 C1236

Transfer shift actuator motor 
position switch 2 circuit short

Actuator position switch signal voltage 0.6 V or 
less.

{

)

 C1237

Center differential lock switch 
circuit open

Though actuator position switch is “4H” position, 
the ON signal is not input from the center 
differential lock switch.

{

)

 C1238

Center differential lock switch 
circuit short

Though actuator position switch is “4L-lock” 
position, the OFF signal is not input from the 
center differential lock switch.

{

)

 C1240

4WD control module power 
supply circuit malfunction

Battery voltage is lower than lower limit voltage 
for 4WD control module diagnosis.

{

)

 C1243

Internal circuit malfunction of 
4WD control module

EEPROM error

{

)

 C1246

Clutch pedal position (CPP) 
switch circuit short

CPP switch signal is input when vehicle speed is 
30 km/h (19 mph).

{

)

 U1073

Control module communication 
bus off

Transmitting and receiving error of 4WD control 
module for specified time continuously.

{

)

 U1100

Lost communication with ECM

Receiving error of 4WD control module from 
ECM for specified time continuously.

{

)

 U1101

Lost communication with TCM

Receiving error of 4WD control module from 
TCM for specified time continuously.

{

)

 U1121

Lost communication with ABS / 
electronic stability program 
control module

Receiving error of 4WD control module from 
ABS / electronic stability program control module 
for specified time continuously.

{

3C-22 Transfer: 

Fail-Safe Table

S6JB0B3304008

This function is provided by the safe mechanism that assures safe drive ability even when the actuator, switch, sensor 
or its circuit fails. The following table shows the fail safe function for each fail condition of sensor, actuator, switch, 
4WD control module or its circuit.

Scan Tool Data

S6JB0B3304009

DTC No.

Trouble Area

Fail-Safe Operation

)

 C1223

Transfer actuator switch 1 circuit open

4WD control module stops outputting of control 
signal to transfer actuator (When shifting, it stops 
outputting after shifting is completed).

)

 C1224

Transfer actuator switch 1 circuit short

)

 C1235

Transfer actuator switch 2 circuit open

)

 C1236

Transfer actuator switch 2 circuit short

)

 C1230

Transfer actuator circuit malfunction

4WD control module stops outputting of control 
signal to transfer actuator.

)

 C1240

4WD control module power supply circuit 
malfunction

)

 C1246

Clutch switch circuit short

Scan Tool Data

Vehicle Condition

Normal Condition / 

Reference Value

Vehicle speed

At vehicle stop

0 km/h, 0 mph

Actuator Pos Sen

Transfer shifted to 4H position

4H

Transfer being shifted between 4H-lock and 4H position

4H-lock – 4H

Transfer shifted to 4H-lock position

4H-lock

Transfer being shifted between 4H and N position

4H – N

Transfer shifted to 4L-lock position

4L-lock

Transfer being shifted between N and 4L-lock position

N – 4L-lock

Transfer shifted to N position

N

Actuator motor Pos

Transfer shifted to 4H position

4H

Transfer shifted to 4H-lock position

4H-lock

Transfer shifted to 4L-lock position

4L-lock

Transfer shifted to N position

N

Battery voltage

Ignition switch ON and engine stop

10 – 14 V

4L/N switch

Transfer shifted to 4L-lock or N position

ON

Transfer shifted to 4H or 4H-lock position

OFF

Center diff lock SW

Transfer shifted to 4H or N position

ON

Transfer shifted to 4H-lock or 4L-lock position

OFF

N range signal (AT)

A/T shifted to “N” range

ON

A/T shifted to other than “N” range

OFF

CPP switch (MT)

Clutch pedal depressed

OFF

Clutch pedal released

ON

Mode switch 1

Transfer switch selected to N position

ON

Transfer switch selected to 4H, 4H-lock or 4L-lock position

OFF

Mode switch 2

Transfer switch selected to 4H, 4H-lock or N position

ON

Transfer switch selected to 4L-lock position

OFF

Mode switch 3

Transfer switch selected to 4H-lock or 4L-lock position

ON

Transfer switch selected to 4H or N position

OFF

Warning buzzer

Buzzer not being sound

OFF

Transfer shifted to N Position

N Pos

Transfer shifted to disagreement of transfer switch and transfer 
position

Error

ABS active

ABS operating

ON

ABS not operating

OFF

ESP

® active

ESP

® operating

ON

ESP

® not operating

OFF

Transfer: 3C-23

Scan Tool Data Definitions

S6JB0B3304010

Vehicle Speed (KM/H, MPH):  

This parameter indicates vehicle speed calculated by 4WD control module.

Actuator Pos Sen (Transfer shift actuator motor position switch) (4H / 4H-lock / 4L-lock / N / 4H-lock-4H / 4H-N 

/ N-4L-lock):  
This parameter indicates transfer shift actuator motor position switch status detected by 4WD control module.

Actuator motor Pos (Transfer shift actuator motor position) (4H / 4H-lock / 4L-lock / N):  

This parameter indicates transfer shift actuator motor position detected by 4WD control module using transfer shift 
actuator motor position.

Battery voltage (V):  

This parameter indicates battery voltage detected by 4WD control module.

4L / N switch (ON / OFF):  

This parameter indicates 4L / N switch status detected by 4WD control module.

Center diff lock Sw (ON / OFF):  

This parameter indicates center differential lock switch status detected by 4WD control module.

N range signal (AT) (ON / OFF):  

This parameter indicates A/T shift position (“N” range or not) detected by 4WD control module.

CPP switch (Clutch pedal position switch) (MT) (ON / OFF):  

This parameter indicates clutch pedal position switch status detected by 4WD control module using CPP switch.

Mode switch 1 (Transfer switch) (ON / OFF):  

ON: Transfer switch to N position.
OFF: Transfer switch to other than N position.

Mode switch 2 (Transfer switch) (ON / OFF):  

ON: Transfer switch to other than 4L-lock position.
OFF: Transfer switch to 4L-lock position.

Mode switch 3 (Transfer switch) (ON / OFF):  

ON: Transfer switch to 4H-lock or 4L-lock position.
OFF: Transfer switch to 4H or N position.

Warning buzzer (OFF / N Pos / Error):  

This parameter indicates if buzzer is being commanded by 4WD control module.

ABS active (ON / OFF):  

This parameter indicates ABS status detected by 4WD control module.

ESP

® active (ON / OFF):  

This parameter indicates ESP

® status detected by 4WD control module.