Suzuki Grand Vitara JB416 / JB420. Manual - part 426

10E-9 Keyless Start System:

Diagnostic Information and Procedures

Self-Diagnosis Function

S5JB0AA504002

The keyless start control module has self-diagnosis
function to monitor the system components and circuits
while the keyless start system is at work. When the
keyless start control module detects an abnormality in
the system, it saves the area where such abnormality
has occurred as a DTC in its memory. The DTC stored in
memory of the keyless start control module is indicated
by the key indicator lamp in the combination meter

flashing in a specific pattern. For DTC indication, refer to
“DTC Check” and for the clearing procedure, to “DTC
Clearance”.

Keyless Start System Diagnosis Introduction

S5JB0AA504003

To ensure that the trouble diagnosis is done accurately
and smoothly, observe “Precautions in Diagnosing
Troubles” and follow “Keyless Start System Check”.

Keyless Start System Check

S5JB0AA504004

Step

Action

Yes

1) Record details of the problem. For your record, use of a

questionnaire form will facilitate collecting information for
proper analysis and diagnosis.

2) Check if the problem described in “Customer

questionnaire (example)” actually occurs in the vehicle.
(This step should be performed with the customer if
possible.)
Perform “Keyless Start System Operation Inspection”
procedure to check if the symptom which has occurred is
abnormal or not.

3) Check for DTC referring to “DTC Check”, and then

record DTC(s).

4) Clear DTC referring to “DTC Clearance” if any DTC

exists, and then recheck for DTC.

Is any DTC still detected?

Go to Step 2.

Go to Step 3.

1) Check and repair referring to applicable “DTC Table”.

Are check and repair complete?

Go to Step 5.

Check and repair
malfunction part(s), and
go to Step 5.

1) Inspect and repair basic parts referring to “Keyless Start

System Symptom Diagnosis”.

Is there faulty condition?

Repair or replace
malfunction part(s), and
go to Step 5.

Go to Step 4.

1) Check for intermittent problems referring to “Intermittent

and Poor Connection Inspection in Section 00”.

Is there any faulty condition?

Repair or replace
malfunction part(s), and
go to Step 5.

Go to Step 5.

1) Confirm if the problem is solved and the keyless start

system is free from any abnormal conditions. If what has
been repaired is related to the DTC, clear the DTC once
and then confirm that no DTC is indicated.

Is there any problem symptom, DTC or abnormal condition?

Go to 2) of Step 1 and
perform trouble
diagnosis again.

End.

Keyless Start System: 10E-10

Customer questionnaire (example)

S5JB0AA504005

Key Indicator Lamp Check

S5JB0AA504006

Push the ignition knob switch (2) of the steering lock unit (1) and check that the key indicator lamp (3) in the
combination meter lights up in red or blue. If it does not light, go to “Key Indicator Lamp Circuit Check (Key indicator
lamp doesn’t light when ignition knob switch is pushed.)”.

Customer s name:

Model:

VIN:

Date of issue:

Date Reg:

Date of problem:

Mileage:

Problem Symptoms

Engine can not be started by turning Ignition knob

switch

All doors can not be locked / unlocked by all of

request switches

Other

Frequency of Occurrence

Continuous / Intermittent ( times a day, a month)

Other

Environmental Condition

Weather:

Fine / Cloudy / Rain / Snow / Other

Temperature:

(

F )

Stopping near area where intense radio waves are

emitted such as TV station, radio station, etc.

Yes / No

Diagnostic Trouble Code

First check:

Normal code / malfunction code ( )

Second check:

Normal code / malfunction code ( )

I4RS0BA50007-03

I5JB0AA50006-01

10E-11 Keyless Start System:

DTC Check

S5JB0AA504007

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 Lamp 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 twice to
inform that trouble diagnosis mode has started.

6) Read flashing pattern of key indicator lamp (1) 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.

I5JB0AA50007-01

[A]: DTC NO. 12 (Normal)

K: Key indicator lamp

[B]: DTC NO. 52

a: 0.3 seconds

H: Key indicator lamp turned ON

b: 1.0 second

L: Key indicator lamp turned OFF

c: 3.0 seconds

[A]

[B]

I5JB0AA50008-01

Keyless Start System: 10E-12

DTC Table

S5JB0AA504008

DTC Clearance

S5JB0AA504009

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 lamp indicates DTC No. 12 (Normal).

4) After completing DTC clearance, remove ignition key from ignition key cylinder.

DTC (Flashing pattern

of key indicator lamp)

Detected parts item

Detecting condition

)

Communication Error With Steering
Lock Unit

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

—

Normal (No malfunction DTC is detected)

)