Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual - part 30

3C-15 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

Diagnostic Information and Procedures

4WD Control System Check

S5JB0E3314001

Refer to the following items for the details of each step.

Step

Action

Yes

No

1

)

 Customer complaint analysis

1) Perform customer complaint analysis.

Was customer complaint analysis performed?

Go to Step 2.

Perform customer 
complaint analysis.

2

)

 DTC / freeze frame data check, record and clearance

1) Check for DTC.

Is there any DTC(s)?

Print DTC or write them 
down and clear them by 
referring to “DTC 
Clearance: Motor-Shift 
Type (Transfer with Shift 
Actuator)”. Go to Step 3.

Go to Step 4.

3

)

 Visual inspection

1) Perform visual inspection.

Is there any faulty condition?

Repair or replace 
malfunction part. Go to 
Step 11.

Go to Step 5.

4

)

 Visual inspection

1) Perform visual inspection.

Is there any faulty condition?

Repair or replace 
malfunction part. Go to 
Step 11.

Go to Step 8.

5

)

 Trouble symptom confirmation

1) Shift transfer to “4H”, “4H-lock”, “4L-lock” and “N” 

positions referring to “4WD Control System Operation 
Inspection: Motor-Shift Type (Transfer with Shift 
Actuator)”.

2) Confirm trouble symptom.

Is trouble symptom identified?

Go to Step 6.

Go to Step 7.

6

)

 Rechecking and record of DTC / freeze frame data

1) Recheck for DTC referring to “DTC Check: Motor-Shift 

Type (Transfer with Shift Actuator)”.

Is there any DTC(s)?

Go to Step 9.

Go to Step 8.

7

)

 Rechecking and record of DTC / freeze frame data

1) Recheck for DTC referring to “DTC Check: Motor-Shift 

Type (Transfer with Shift Actuator)”.

Is there any DTC(s)?

Go to Step 9.

Go to Step 10.

8

)

 4WD control symptom diagnosis

1) Check and repair according to “4WD Control Symptom 

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

Are check and repair complete?

Go to Step 11.

Check and repair 
malfunction part(s). Go 
to Step 11.

9

)

 Troubleshooting for DTC

1) Check and repair according to applicable DTC flow.

Are check and repair complete?

Go to Step 11.

Check and repair 
malfunction part(s). Go 
to Step 11.

10 ) Check for intermittent problems

1) Check for intermittent problems.

Is there any faulty condition?

Repair or replace 
malfunction part(s). Go 
to Step 11.

Go to Step 11.

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-16

11 ) Final confirmation test

1) Clear DTC if any.
2) Perform final confirmation test.

Is there any problem symptom, DTC or abnormal condition?

Go to Step 6.

End.

Step

Action

Yes

No

3C-17 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

Detail of 4WD Control System Check
Step 1: Customer complaint analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer.
For this purpose, use of such a questionnaire form as shown in the following will facilitate collecting information to the 
point required for proper analysis and diagnosis.

Customer questionnaire (Example)

NOTE
The form is a standard sample. It should be modified according to conditions characteristic of each 
market.

 

Step 2. DTC / freeze frame data check, record and 
clearance
First, referring to “DTC Check: Motor-Shift Type 
(Transfer with Shift Actuator)”, check DTC and pending 
DTC. If DTC exists, print or write down DTC and freeze 
frame data and then clear malfunction DTC(s) by 
referring to “DTC Clearance: Motor-Shift Type (Transfer 
with Shift Actuator)”. Malfunction DTC indicates 
malfunction in the system but it is not possible to know 
from it whether the malfunction is occurring now or it 
occurred in the past and normal condition has been 

restored. In order to know that, check symptom in 
question according to Step 5 and then recheck DTC 
according to Step 6.
Diagnosing a trouble based on the DTC in this step only 
or failure to clear the DTC in this step may result in an 
faulty diagnosis, trouble diagnosis of a normal circuit or 
difficulty in troubleshooting which is otherwise 
unnecessary.

Customer’s name:

Model:

VIN:

Problem Symptoms

Frequency of Occurrence

Conditions for 
Occurrence of Ploblem

Environmental Condition

Diagnostic Trouble Code

Date of Reg:

Transfer position indicator abnormal: fails to turn on / fails to turn off / 
flashes
Abnormal noise while vehicle running: from transfer, from actuator, 
                                                             other
No shifted to “4H” position
No shifted to “4H-lock” position
No shifted to “4L-lock” position
No shifted to “N” position

When starting: at initial start only / at every start / other
Vehicle speed: while accelerating / while decelerating / at stop / 
                         while turning / while running at constant speed / 
                         other
Road surface condition: Paved road / rough road / snow-covered road / 
                                       other

Wheather: fine / cloudy / rain / snow / other
Temperature:                (                 )

First check:                              Normal code / malfunction code (               )
Second check after test drive: Normal code / malfunction code (               )    

Continuous / Intermittent   (           times a day, a month) / 
other

Date of problem:

Mileage:

Date of issue:

I5JB0A332011-02

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-18

Step 3 and 4. Visual inspection
As a preliminary step, be sure to perform visual check of 
the items that support proper function of the 4WD control 
system referring to “Visual Inspection: Motor-Shift Type 
(Transfer with Shift Actuator)”.

Step 5. Trouble symptom confirmation
Check trouble symptoms based on information obtained 
in “Step 1: Customer complaint analysis: Motor-Shift 
Type (Transfer with Shift Actuator)” and “Step 2. DTC / 
freeze frame data check, record and clearance: Motor-
Shift Type (Transfer with Shift Actuator)”.
Also, reconfirm DTC according to “DTC Confirmation 
Procedure” described in each DTC flow.

Step 6 and 7. Rechecking and record of DTC and 
freeze frame data
Refer to “DTC Check: Motor-Shift Type (Transfer with 
Shift Actuator)” for checking procedure.

Step 8. 4WD control symptom diagnosis
Check the parts of the system suspected as a possible 
cause referring to “4WD Control Symptom Diagnosis: 
Motor-Shift Type (Transfer with Shift Actuator)”.

Step 9. Troubleshooting for DTC
Based on the DTC indicated in Step 6 / 7 and referring to 
“applicable DTC flow”, locate the cause of the trouble, 
namely in a sensor, switch, wire harness, connector, 
actuator, 4WD control module or other part and repair or 
replace faulty parts.

Step 10. Check for intermittent problem
Check parts where an intermittent trouble is easy to 
occur (e.g. wire harness, connector, etc.), referring to 
“Intermittent and Poor Connection Inspection in Section 
00 in related manual” and related circuit of DTC 
recorded in Step 2.

Step 11. Final confirmation test
Confirm that the problem symptom has gone and the 
vehicle is free from any abnormal conditions. If what has 
been repaired is related to the malfunction DTC, clear 
the DTC once and check to ensure that no malfunction 
DTC is indicated.

Transfer Position Indicator Operation Check

S5JB0E3314002

1) Turn ignition switch to OFF position.
2) Check that transfer position indicators turn on for 

about 2 seconds and then turns off.
If any faulty condition is found, proceed to “Transfer 
Position Indicator Does Not Come ON at Ignition 
Switch ON but Engine Stops: Motor-Shift Type 
(Transfer with Shift Actuator)” or “Transfer Position 
Indicator Remains ON Steady at Ignition Switch ON: 
Motor-Shift Type (Transfer with Shift Actuator)”.

4WD Control System Operation Inspection

S5JB0E3314003

NOTE

• If it is difficult to shift between “4H” and 

“4H-lock” while vehicle is moving, stop 
vehicle and operate Transfer switch.

• When ABS operates while shifting from 

“4H” to “4H-lock” (“4H-lock” to “4H”), it 
becomes to disagreement of transfer 
switch and transfer position. End of the 
ABS operation, and then transfer shifting 
from “4H” to “4H-lock” (“4H-lock” to “4H”).

• Transfer position indicator blinks during 

shifting process.

• Transfer position indicator blinks and 

warning buzzer sounds during “N” 
position at intervals of 3 seconds.

• When shifting to “N” or “4L-lock” does not 

shifts, try the following procedure.
– For M/T model, shift transmission to N 

(Neutral) position, turn ignition switch to 
ON position, depress clutch pedal and 
brake pedal while engine is running, and 
then try shifting again.

– For A/T model, turn ignition switch to 

ON position, move vehicles lowly back 
or forth a few feet, depress brake pedal, 
and then try shifting again.

 

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

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

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

d) Turn transfer switch to “4H-lock” position.
e) Check that differential lock indicator blinks, and 

then comes ON steady.

2) Inspect shift operation from 4H-lock to 4L-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 4H-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 “4L-lock” 

position.