Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual - part 31

3C-19 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

e) Check that 4L indicator blink, and then 

differential lock indicator and 4L indicator comes 
ON steady.

3) Inspect shift operation from 4L-lock to 4H-lock as 

follows.
a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that vehicle is under following 

conditions.
• Transfer shift position is 4L-lock.
• Transmission shift lever is at “N” position. (for 

A/T model)

• Clutch pedal is depressed fully. (for M/T 

model)

• Brake pedal is depressed.

d) Push and turn transfer switch to “4H-lock” 

position.

e) Check that 4L indicator blink, and then 

differential lock indicator comes ON steady and 
4L indicator not come ON.

4) Inspect shift operation from 4H-lock to 4H as follows.

a) Start engine.
b) Position front wheels straight ahead.
c) Confirm that vehicle is under following 

conditions.
• Transfer shift position is 4H-lock.
• Vehicle speed is less than 100 km/h (60 mph).

d) Turn transfer switch to “4H” position.

e) Check that differential lock indicator blinks, and 

then not comes ON.

5) Inspect shift operation from 4H to N as follows.

a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that vehicle is under following 

conditions.
• Transfer shift position is 4H.
• Transmission shift lever is at “N” position. (for 

A/T model)

• Clutch pedal is depressed fully. (for M/T 

model)

• Brake pedal is depressed.

d) Turn transfer switch to “†” position (1), keep it 

there for about 10 seconds, and then turn it to 
“N” position after N indicator blinks.

e) Check that N indicator blinks and warning buzzer 

sounds, and then N indicator comes ON steady.

Visual Inspection

S5JB0E3314004

Check the following parts and systems visually.

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Inspection Item

Referring

• Front differential oil ---- level, leakage

“Front Differential Oil Change: Front in Section 3B in 
related manual”

• Rear differential oil ---- level, leakage

“Rear Differential Oil Change: Rear in Section 3B in 
related manual”

• Transfer gear oil ---- level, leakage

“Transfer Oil Change: Motor-Shift Type (Transfer with 
Shift Actuator) in related manual”

• Manual transmission oil ---- level, leakage

“Manual Transmission Oil Change in Section 5B in 
related manual”

• A/T fluid ---- level, leakage

“A/T Fluid Level Check in Section 5A in related manual”

• Transfer mounting(s) ---- wear and looseness
• Fuses ---- burning
• Battery ---- fluid level, corrosion of terminal

“Battery Inspection in Section 1J in related manual”

• Connectors of electric wire harness ---- disconnection, 

friction

“Intermittent and Poor Connection Inspection in Section 
00 in related manual”

• Other parts that can be checked visually

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-20

DTC Check

S5JB0E3314005

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) Read DTC according to instructions displayed on 

SUZUKI scan tool and print it or write it down. Refer 
to SUZUKI scan tool operator’s manual for further 
details.
If communication between SUZUKI scan tool and 
4WD control module is not possible, check if 
SUZUKI scan tool is communicable by connecting it 
to 4WD control module in another vehicle. If 
communication is possible in this case, SUZUKI 
scan tool is in good condition. Then check data link 
connector and serial data line (circuit) in the vehicle 
with which communication was not possible.

5) After completing the check, turn ignition switch OFF 

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

Using Diagnosis Connector

1) With ignition switch OFF position, using service wire 

short diagnosis switch terminal (1) of diagnosis 
connector (2) and body ground.

2) With ignition switch ON position and leaving engine 

OFF, read DTC displayed on digital display odometer 
(3) of combination meter referring to “DTC Table: 
Motor-Shift Type (Transfer with Shift Actuator)”.

NOTE
When more than 2 DTCs are stored in 
memory, flashing for each DTC is repeated 
three times starting with the smallest DTC 
number in increasing order.

 

3) After completing the check, turn ignition switch OFF, 

disconnect service wire from diagnosis connector.

(A)

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1

2

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3C-21 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

DTC Clearance

S5JB0E3314006

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: Motor-Shift Type (Transfer 

with Shift Actuator)” 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: Motor-Shift Type (Transfer 

with Shift Actuator)” and confirm that DTC No. is not 
displayed.

(A)

1

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1

2

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Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-22

DTC Table

S5JB0E3314007

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.

{