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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3
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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)
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
Steering Lock Unit Malfunction
Steering lock unit cannot be unlocked due to its
temperature rise
Internal Error in Keyless Start Control
Module (EEPROM Reading Error)
Data cannot be read from memory in keyless start
control module
Internal Error in Keyless Start Control
Module (EEPROM Writing Error)
Data cannot be written into memory in keyless start
control module
Lost Communication With BCM
Keyless start control module cannot receive data
sent by CAN from BCM
Control Module Communication Bus
Off
No communication is available with all control
modules connected by CAN
Driver Side Door Request Switch
Malfunction
Input signal from driver side door request switch
remains ON, unchanged
Passenger Side Door Request Switch
Malfunction
Input signal from passenger side door request
switch remains ON, unchanged
Rear end Door Request Switch
Malfunction
Input signal from rear end door request switch
remains ON, unchanged
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2
3
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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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