Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 552

10E-12 Keyless Start System: 

DTC Check

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1) Check to make sure that all doors are closed.
2) Open driver side door window glass and door.
3) Check to make sure that ignition key is not inserted 

in ignition key cylinder. If it is, remove it.

4) Perform “Key Indicator Light Check”.
5) Close driver side door and within 15 seconds after 

that, perform Steps a) through e) described below.
a) Insert ignition key (1) in ignition key cylinder (2).
b) Remove ignition key from ignition key cylinder.
c) Repeat Steps a) and b) twice.
d) Insert ignition key in ignition key cylinder.
e) Push driver side door request switch (3) 4 times.

At the end of Step e), buzzer sounds 4 times to 
inform that trouble diagnosis mode has started.

6) Read flashing pattern of key indicator light which 

represents DTC as shown in example below and 
write it down. 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.

NOTE
Go to “No DTC Detection After Performing 
DTC Check” in case that any DTC is detected 
after performing the procedure mentioned 
above.

 

7) After completing the check, remove ignition key from 

ignition key cylinder.

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[A]: DTC NO. 12 (Normal)

K: Key indicator light

[B]: DTC NO. 52

a: 0.3 seconds

H: Key indicator light turned ON

b: 1.0 second

L: Key indicator light turned OFF

c: 3.0 seconds

b

c

a

a

[A]

H

L

H

L

[B]

5

2

b

a

c

a

2

1

1

b

a

a

2

K

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Keyless Start System:  10E-13

DTC Table

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DTC Clearance

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1) Perform Steps 1) through 5) of DTC check procedure 

and have DTC indicated.

2) Open driver side door.
3) Close driver side door and within 10 seconds after 

that, perform Steps a) to c) described below.
a) Push unlock side (3) of driver side manual door 

lock switch (1).

b) Push lock side (2) of driver side manual door 

lock switch.

c) Repeat Steps a) and b) 3 times.

At the end of Step c), DTCs are cleared and key 
indicator light indicates DTC No. 12 (Normal).

4) After completing DTC clearance, remove ignition key 

from ignition key cylinder.

DTC (Flashing pattern 

of key indicator light)

Detected parts item

Detecting condition

)

 11

Communication Error With Steering 
Lock Unit

No communication is available between keyless 
start control module and steering lock unit

12

—

Normal (No malfunction DTC is detected)

)

 13

Release Signal Error from Steering 
Lock Unit

Although lock release signal is output to steering 
lock unit, it is not inputted from steering lock unit

)

 14

Steering Lock Unit Malfunction

Steering lock unit cannot be unlocked due to its 
temperature rise

)

 21

Internal Error in Keyless Start Control 
Module (EEPROM Reading Error)

Data cannot be read from memory in keyless start 
control module

)

 22

Internal Error in Keyless Start Control 
Module (EEPROM Writing Error)

Data cannot be written into memory in keyless start 
control module

)

 31

Lost Communication With BCM

Keyless start control module cannot receive data 
sent by CAN from BCM

)

 33

Control Module Communication Bus 
Off

No communication is available with all control 
modules connected by CAN

)

 51

Driver Side Door Request Switch 
Malfunction

Input signal from driver side door request switch 
remains ON, unchanged

)

 52

Passenger Side Door Request Switch 
Malfunction

Input signal from passenger side door request 
switch remains ON, unchanged

)

 53

Rear end Door Request Switch 
Malfunction

Input signal from rear end door request switch 
remains ON, unchanged

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10E-14 Keyless Start System: 

Keyless Start System Symptom Diagnosis

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Door Lock Function of Keyless Start System

NOTE
Before performing trouble diagnosis procedure for door lock function of keyless start system, check 
that power door lock system operates properly referring to “Power Door Lock System Operation 
Inspection in Section 9F”.

 

Keyless Engine Start Function

NOTE
Before performing symptom diagnosis procedure for keyless engine start system, check that engine 
starts by using ignition key. If it cannot be started by using ignition key, go to “Engine Symptom 
Diagnosis: For Petrol Engine Model in Section 1A” or “Engine Basic Inspection: For Diesel Engine 
Model in Section 1A”.

 

Condition

Possible cause

Correction / Reference Item

All doors can not be 
locked / unlocked by all of 
door request switches

Circuit fuse(s) blown

Replace fuse(s) and check for short circuit.

Remote controller battery dead

Replace battery.

Remote controller faulty

Check remote controller for operation referring 
to “Remote Controller Inspection”.

Wiring or grounding faulty

Repair circuit.

Antennas or keyless start control 
module faulty

Check input and output signals of keyless start 
control module referring to “Inspection of 
Keyless Start Control Module and Its Circuits”.

BCM faulty

Check input and output signal of BCM referring 
to “Inspection of BCM and Its Circuits in 
Section 10B”.

All doors can not be 
locked / unlocked by any 
one of door request 
switch

Request switch faulty

Check request switch for operation referring to 
“Front Door (Driver and Passenger Side), Rear 
End Door Request Switch Inspection”.

Wiring or grounding faulty

Repair circuit.

Antennas or keyless start control 
module faulty

Check input and output signals of keyless start 
control module referring to “Inspection of 
Keyless Start Control Module and Its Circuits”.

BCM faulty

Check input and output signal of BCM referring 
to “Inspection of BCM and Its Circuits in 
Section 10B”.

Condition

Possible cause

Correction / Reference Item

Engine can not be started 
by turning Ignition knob 
switch

Circuit fuse(s) blown

Replace fuse(s) and check for short circuit.

Remote controller battery dead

Replace battery.

Remote controller faulty

Check remote controller for operation referring 
to “Remote Controller Inspection”.

Steering lock unit faulty

Check steering lock unit for operation referring 
to “Steering Lock Unit Inspection”.

Wiring or grounding faulty

Repair circuit.

Antennas or keyless start control 
module faulty

Check input and output signals of keyless start 
control module referring to “Inspection of 
Keyless Start Control Module and Its Circuits”.

ECM faulty

Check input and output signal of ECM.

Keyless Start System:  10E-15

Keyless Start System Operation Inspection

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Keyless Engine Start Operation

1) Sit in driver seat with remote controller carried with 

you.

2) Check that all doors are closed and ignition key is 

not inserted in ignition key cylinder.

3) While pushing ignition knob switch (1) of steering 

lock unit, check if ignition knob switch can be turned 
from its lock position.
If key indicator light (2) in combination meter lights in 
blue and ignition knob switch can be turned from its 
lock position in this check, keyless engine start 
operation is in good condition.
If key indicator light in combination meter lights in red 
and ignition knob switch cannot be turned from its 
lock position in this check, go to “Keyless Start 
System Check”.

NOTE
Pushing ignition knob switch for 5 seconds 
or longer causes function to protect steering 
lock releasing solenoid against heat to work. 
Then steering lock unit stops energizing 
solenoid, preventing ignition knob switch 
from turning. At the same time, key indicator 
light in combination meter turns off. In such 
case, take your hand off from ignition knob 
switch once and operate it again.

 

Door Lock Operation Check (Keyless Start 
System)

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1) Check that all door locks are released and all doors 

are closed.

2) With remote controller of which ID code is registered 

in keyless start control module carried with yourself, 
check that pushing driver door, passenger door or 
rear end door request switch once locks all doors.

3) Check door unlock operation as follows.

a) Door lock 1-Action type, check that pushing 

request switch of driver door, passenger door or 
rear end door once releases all door locks.

b) Door lock 2-Action type, check that pushing 

request switch of driver door, passenger door or 
rear end door once releases corresponding door 
lock.

4) Door lock 1-Action type, check that pushing again 

request switch pushed in Step 3) releases all door 
locks.

NOTE
If door of which request switch has been 
pushed is opened/closed before performing 
Step 4), all door locks will not be released 
even when Step 4) is performed. If Step 4) is 
performed after door is opened/closed, only 
the door of which request switch was pushed 
will be locked.

 

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