Nex-tech OBD II User manual

Instruction Manual
OBD II 4G/GPS
Tracking Device

1
INTRODUCTION:
The OBD II 4G/GPS Tracking Device includes GPS & 2G GSM / 3G WCDMA
/ 4G LTE module and OBD II interface (Support Can Protocol: ISO15765-4,
KWP2000:ISO14230-4, ISO9141-2, J1850VPW, J1850PWM), it can upload current
location to website, display history tracking on website, it has map link locate
function without platform, it is very easy to install and using, just insert the tracker
to car OBD socket is OK, also it built in shock sensor to control power & internet
data saving.
With GPS and 2G GSM / 3G WCDMA / 4G LTE network, the tracker sends the
present location information through internet to server, so that user visit the
website www.nextechgps.com with the applied user’s name and password (Given
by us) through any computer with available internet, current location checking,
history tracking playing back, alarm & running report etc can be operated, it is used
for alarm, fleet management, anti-hijack etc.
User can download Android or iPhone iOS app software to android or iPhone
mobile phone, after login also can track the car, the user name and password is
same with the website login.
Also this tracker can diagnostic car status by SMS (Reply DTC information & car
status read from OBDII interface), this can help user or maintenance worker to
know the car status and how to fix it. This GPS tracker can be used as car alarm,
fleet management, driver management etc, it can be used for tracking cars,
company vehicles, buses, taxis, trucks, etc.
Use PC or mobile phone browser to visit the www.nextechgps.com website can
download or read the tracker manual online.

2
SIM Card Slot
OBD Socket
System LED OBD
External Wire
(Optional)
PRODUCT OVERVIEW:
FEATURES:
• 2G/3G/4G global network
• 2 channel Can Bus interface
• OBD interface, DIY no installation
• Diagnostic Car Status(reply by SMS or Website)
• Auto download APN & internet setting
• App (Android & iPhone) / Web / SMS locate
• Built in battery for power down alarm & remove alarm
• Built in Shock Sensor for Car Move and Shock Alarm
• Shock sensor control uploading to save car battery power
• Function can be customized by client request
• Protocol can be changed by client request
• Wide working voltage: 9-40V DC

3
INSTALLATION:
LED INDICATOR DESCRIPTION:
Note:
• This tracker uses 2G GSM 3G WCDMA & 4G LTE network, and it upload
information by internet, it can not work in CDMA network or CDMA2000
network.
• Before installing or uninstalling the SIM card, please power off the tracker.
• APN and user name & password for internet visiting need to be set, the
SMS command please refer the following.
1. Install SIM Card (Micro SIM ONLY)
Just push the SIM card into the tracker by
the following direction, the SIM card will
lock in the SIM card holder, please pay
attention the SIM card direction & metal
pin face down. To eject the SIM card, push
the SIM card in, the SIM card will come out
a little and then it is safe to remove.
GREEN LED Flash once 2G/3G/4G & GPS working well
GREEN LED Flash twice 2G/3G/4G working well but no GPS signal
GREEN LED Flash three times 2G/3G/4G & GPS working well but battery low
GREEN LED Flash four times 2G/3G/4G working well but battery low and no
GPS signal
GREEN LED ON continuously 2G/3G/4G searching network
GREEN LED OFF continuously Power off
GREEN LED Flash fast Incoming a call or sending SMS
RED LED Flash once Uploading current tracking
RED LED Flash twice Can not upload tracking now
Micro
SIM

4
INSTALLATION:
2. Power ON / OFF
• Insert the tracker to OBD socket, the tracker will power on automatically.
• When tracker is removed from the OBD socket, then the tracker will send
power down alarm to server, the built in battery can work about 0.5-1
hours, later the tracker will power off automatically.
3. Tracker Installation
The tracker is easy to install, just insert the tracker to the OBD socket.
The OBD socket is normally under the car panel of the driver seat.
4. Antenna
The Antenna of 2G/3G/4G and GPS are built in the tracker.
Large metal objects and car panel will reduce the GSM and GPS signal. the
GPS antenna need faced to sky& can not face to ground, otherwise the GPS
signal will be weak and maybe can not located, if can not locate insert to
OBD interface, you need connect a external OBD wire to install the tracker
to other place.
GPS Antenna

5
INSTALLATION:
5. Reset to Factory Settings (Default configuration)
Sending SMS (factory*12345678) to the tracker will delete all user setting
and back to factory configuration and repower on.
6. Working Temperature
The working temperature is -20°C to 60°C, over this range the product may
not function as normal. The storage temperature can reach to -40°C to 80°C.
Note:
After a factory reset, all IP / APN / internet/ Language / Timezone / Alarm
Setting etc are deleted, just like a new product, all authorized phone
numbers are deleted and password change to 123456, all the alarm settings
are canceled, if the IP/APN/internetname & password are changed, users
need set these again by sending SMS.

6
OPERATING THE DEVICE:
Initial Preparations
1. Firstly, you will need a functioning 2G GSM or 3G WCDMA or 4G LTE
mobile phone SIM card with a data plan for internet usage,
2. Insert the SIM card into the tracker correctly.
3. Insert the tracker into the OBD socket, the tracker is powered on.
4. Check LED flash, If Green LED flash once means mobile phone and
GPS signal is working. Red LED flash once means the location has been
uploaded to the server, please see the above LED indicator description.
5. IF the red LED flash twice means the tracker can not upload
the location to server, the user will need to send SMS to
tracker to change the APN & internet user name & password,
call the tracker SIM card supplier to get the the APN & internet
user name & password, Send “APN*12345678*apnname” and
“USERNAME*12345678*username*password” to tracker can set the
APN & internet user name and password, please refer the following
Tracker Setting Command 1 for detail. send SMS “CHECK*12345678” to
tracker to check the APN auto configuration,
6. Visit & login the tracking platform www.nextechgps.com, select
language, check current location, playback history tracking etc
can be customised from here, platform user name and password
is the last 7 digital numbers of the tracker’s ID (for example ID is :
83020208881688, the user name is : 8881688, password is :8881688
or 123456, user can change the password)
7. The App also uses the same user name and password as the website
login, visit www.nextechgps.com with mobile phone, click the app
icon on the login page, or scan the QR code on login page, the iPhone
& Android app can be download & installed, please refer the platform
operation guide.
8. Fleet user can be created for easy fleet management, call your
distributor to create a fleet.
9. The OBD information check & other operation please refer the
following description.

7
OPERATING THE DEVICE:
Location Instructions
1. Sending SMS trigger - Location
Send SMS “URL*12345678” to the tracker, “URL” is a command, “12345678” is
password. If the operation is success, the tracker will send back the location
information with map link to the sender. User click the link, the location in a
map will display.
2. Arming the Shock Alarm by sending SMS
Send SMS “ARM*12345678” to tracker, “ARM” is a command, “12345678” is
password, the tracker will send back the information “Set Shock Alarm ON”
to indicate the operation is success and go to arm state, if the password is
incorrect, the operation will fail and the tracker will send back information
“Wrong Password”.
Once shock alarm state is activated, the system will check shock sensor. If
the shock sensor is triggered (only continuous shock can trigger the alarm
to avoid accidental readings), the tracker will send alarm and location
information by SMS to the authorized phone number, and send the alarm
information to the website server. The tracker will call the authorized
number A first, if not answered then B and then C, if 3 authorized calls
go unanswered, the tracker will stop calling. If the tracker is triggered
continually, every authorized phone will receive max 3 alarm SMS per hour.
If the authorized number have been set, use the authorized phone number to
send SMS “ARM#” to the tracker also can trigger the tracker to enter
arm state.

8
OPERATING THE DEVICE:
3. Disarming the Shock Alarm by sending SMS
Send SMS “DISARM*12345678” to tracker, “DISARM” is a command,
“12345678”is password, the tracker will send back the information “Set Shock
Alarm OFF” to indicate the operation is a success and disable the shock
alarm, if the password is incorrect, the operation will fail and the tracker will
send back information “Wrong Password”.
4. Checking Vehicle OBD Information via SMS
Send SMS “OBD*12345678” to tracker when car engine is running, “OBD” is
a command, “12345678” is password, the tracker will send back OBD & car
status information”, if the password is incorrect, the operation will fail and the
tracker will send back information “Wrong Password”.
OBD information example:
(The information maybe different with car model)
Number of DTCs:1,P0340,Car voltage:13V
For detailed information of the DTC please see the Vehicle Owner’s Manual.

9
OPERATING THE DEVICE:
5. Checking Vehicle OBD Information via SMS
When the car engine is running, you can check the car OBD information
on the website. Log into the website www.nextechgps.com, Click: device
will display a menu below the device, click “More” in the menu, the menu
will pop up, and then click the “OBD” menu and the OBD diagnosis window
will pop up, click the button “Query OBD” in the OBD diagnosis window, a
successful command sending message will pop up, click “OK”, a few minutes
later, the device will return the OBD information just queried, including the
vehicle VIN code, fault code, tacho, speed, mileage, Oil quantity, voltage,
fuel consumption and other engine parameter data, etc. And device
software version, GPS and network signal strength of the device, parameter
information within the device, SIM card CCID number also can be checked.
OBD information which can be retrived from the vehicle will differ, The
website only displays the queried parameters, and the parameters that
cannot be queried will not displayed.
Note:
OBD information query only supports web-side query, and does not
support App query for now. Also due to differences in vehicle models, the
read vehicle OBD information is will also differ. Some models may only
have a few parameters that can be queried and several which cannot be
queried at all.

10
TRACKER SETTINGS:
Set APN & Internet User Name & Password
This tracker can download & config APN & internetusername password
automatically after power on, if the APN & internetuser name password
are not right, then you need sending SMS to tracker to change them, if the
tracker can not upload location to platform (Red LED flash twice), please
confirm the auto configuration of APN & internetuser name password is
right, the APN name and internetuser name & password please call your
tracker SIM card mobile phone company to confirm, the auto configuration
APN & internetof the tracker please sending SMS “CHECK*12345678”
to tracker to check. if the APN & internetare not right, please set by the
following description.
Send SMS “APN*12345678*apnname” to the tracker, in which, “APN” is the
fixed command,
“12345678” is the password and “apnname” is the APN name of a mobile
phone company. Having successfully been made, there will be a SMS “APN:
apnname”.
Send SMS “USERNAME*12345678*username*password” to the tracker,
“USERNAME” is a command,“12345678”is the password of the tracker;
“username” is the mobile company internetuser name, “password” is the
mobile company internetpassword, if the operation is success, the tracker
will send back the information “Username:username, Password:password”,
if the password is not right, the operation is fault, the tracker will send back
information “Wrong Password”.
Check Tracker ID
The tracker ID is print on the label of the tracker, the S/N number on the
label is the ID, Also if the label is missing, send SMS “ID*12345678” to
tracker, in which, “ID” is the fixed command and
“12345678”is the password. Having successfully been made, there will
be a SMS “ID: 830201512345678”, in which, “830201512345678” is the ID
and every tracker corresponds to the only number. This number is used to
differ the tracking uploaded to the website from others. the last 7 digital
number of the tracker ID is the user name and password of the tracker on
the platform, for example the tracker ID is : 830201512345678, and then
the user name on the platform of this tracker is : 2345678, and the platform
password for this user name also is :2345678,user can login the platform to
change the password.

11
TRACKER SETTINGS:
Set Server IP
Send SMS “IP*12345678*58.64.155.133,8011” to the tracker, in which, “IP” is
the fixed command, “12345678” is the password and “58.64.155.133,8011” is
the IP address of the server computer of our website. Having successfully
been set, there will be a SMS “IP: 58.64.155.133,8011”. However, the IP
address may be changed with the upgrade of our server, so please see to the
notices on our website.
Notice: The tracker IP address has been set to default : 58.64.155.133,8011
in factory, it is not necessary to set again, unless our IP address has been
changed or user need upload the location to other server, If our server IP is
changed, we will notice on the website.
Add / Delete / Check Authorized Number
The authorized phone number is used to send alarm information by SMS,
also some command need to be operated by authorized phone number, such
as check password / upgrade firmware etc. if the authorized phone number
is not set, then the alarm information can not send to user by SMS (alarm
information, SOS, etc).
Add authorized phone number by SMS
Send SMS“ADDPHONE*12345678*A*number”(Not including the quotation
marks “ ”, Number means the telephone number you want authorized, the
following is same) to tracker is OK,
“ADDPHONE” is a command; “12345678” is password; “A” is authorized
number location, every tracker have 3 authorized phone number, A and
B, and C, so you can set 3 phone numbers, if the add operation is success,
the tracker will send back the information ”Add Authorized Phone OK”, if
the password is not right, the operation is fault, the tracker will send back
information “Wrong Password”.
Delete authorized phone number by SMS
Send SMS “DELETEPHONE*12345678*A” to the tracker, “DELETEPHONE” is a
command; “12345678” is password; “A” is authorized phone number location,
there are 3 locations “A” and “B” and “C”; if the delete operation is success,
the tracker will send back the information ”Delete Authorized Phone OK”, if
the password is not right, the operation is fault, the tracker will send back
information “Wrong Password”.

12
TRACKER SETTINGS:
Check authorized phone number by SMS
Send SMS “CHECKPHONE*12345678” to tracker, “CHECKPHONE” is a
command; “12345678” is password; if the operation is success, the tracker
will send back the information “Authorized Phone A: 13987654321,
B:13876543210, C:13765432101 , the phone number is just an example. if
the password is not right, the operation is fault, the tracker will send back
information or “Wrong Password”.
Change tracker password
Send SMS “CHANGEPASSWORD*12345678*888888” to tracker,
“CHANGEPASSWORD” is a command; “12345678” is old password; “888888”
is new password; if the operation is success, the tracker will send the
information “ New Password: 888888” to every authorized phone number,
if the password is not right, the operation is fault, the tracker will send back
information “Wrong Password”.
Note: Only authorized phone can change the password.
Check tracker password
Send SMS “CHECKPASSWORD” to the tracker, “CHECKPASSWORD” is
a command, if the operation is success, the tracker will send back the
information “Password：888888”; “888888”is an example.
Note: Only authorized phone can check or change the password.
Set Alarm by Calling: ON/OFF
Send SMS “CALLON*12345678” (Call to authorized number) or
“CALLOFF*12345678” (No calling) to the tracker, “CALLON” or “CALLOFF” is
a command, “12345678” is the tracker password, if the operation is success,
the tracker will send back the information “Alarm by calling : ON” or “Alarm
by calling :OFF”, if the password is not right, the operation is fault, the tracker
will send back information “Wrong Password”. If the alarm by calling is ON,
then when the alarm is triggered, the tracker will call the authorized number
to notice the alarm, the default setting is ON.
Set Alarm by SMS: ON/OFF
Send SMS “SMSON*12345678” (Sending SMS to authorized number) or
“SMSOFF*12345678” (No SMS) to the tracker, “SMSON” or “SMSOFF” is a
command, “12345678” is the tracker password, if the operation is success, the
tracker will send back the information “Alarm by SMS : ON” or “Alarm by SMS
:OFF”, if the password is not right, the operation is fault, the tracker will send
back information “Wrong Password”. If the alarm by SMS is ON, then when
the alarm is triggered, the tracker will send SMS to the authorized number to
notice the alarm. The default setting is ON.

13
TRACKER SETTINGS:
Set Upload Time Interval
Send SMS “INTERVAL*12345678*xxx” to tracker, “INTERVAL” is a command,
“12345678” is password, “xxx” is the interval time, which can be set from
30 to 999 seconds. The tracker will send back information “Set Interval xxx
OK”, if the password is not right, the operation is fault, the tracker will send
back information “Wrong Password”. 30 seconds is the default interval time.
Longer upload interval time can save battery and internetdata cost, but this
will make the total mileage to more error.
Check tracker settings
Send SMS “CHECK*12345678” to tracker, “CHECK” is the fixed command,
“12345678” is password. The tracker will send back information including
software version, ID S/N number, IP address, authorized phone number, GPS
and GSM signal etc. if the password is not right, the operation is fault, the
tracker will send back information “Wrong Password”. The following is an
example :
V Mar 03 2020, CC888, CC0830C00820800, 58.64.155.133,8011,
30,A:13987654321,
B:13876543210, GPS OK, +00, -95dBm, ShockControl, CMNET,
User,Password, 46000, e1d/24a0, 93%
V Mar 03 2020, Software version date
CC888, TCP/IP Protocol name
CC0830C00820800, ID S/N number
58.64.155.133,8011, Server IP and Port
13987654321, Authorized number (A/B/C)
GPS OK , GPS status
+00, Time Zone (00 means GMT time)
-95dBm, GSM signal strength
ShockControl, internet is controlled by shock sensor
CMNET, APN name
User, internetuser name
Password, internetpassword
46000, Sim Card MCC+MNC
e1d/24a0, Current Cell ID
Note: This command usually be used to check the tracker current status &
configuration, if the tracker can not work well, this command can check what
the problem is.

14
TRACKER SETTINGS:
Reset the tracker
Send SMS “RESET*12345678” to tracker can make the tracker power off and
power on again, “RESET” is the fixed command, “12345678” is password. The
tracker will send back information “Cancel all alarm setting and re-power on”,
then the tracker will power off and power on automatically, if the password is
not right, the operation is fault, the tracker will send back information “Wrong
Password”. Sometimes the tracker can not work properly, send the reset
command, the tracker will re-power on afew minutes later.
Reset to factory setting (Back to Default)
Send SMS “FACTORY*12345678” to tracker can make the tracker power
off and power on again, “FACTORY” is the fixed command, “12345678” is
password. The tracker will send back information “Setting back to factory
default”, then the tracker will delete all user settings, and restore all setting to
factory mode, just like a new tracker, then the tracker will re-power on after
delete user setting.
If the user have changed the setting, such as APN, IP, authorized number,
etc, you need set this again after back to factory mode. if the password is not
right, the operation is fault, the tracker will send back information “Wrong
Password”.

15
PLATFORM OPERATION GUIDE:
Note:
1. Please confirm that the SIM card PIN code has been disabled, it means
if mobile phone use this SIM card, it is not necessary to input any
password. Otherwise the tracker can not find GSM or CDMA network,
the Green LED will keep ON .
2. This tracker use 2G GSM & 3G WCDMA network, and it upload tracking
only through internet, it can not work in CDMA network CDMA2000
network, if the 4G SIM card can use in 2G GSM or 3G WCDMA
network, then this kind of 4G SIM card can be used in this tracker.
3. The antenna of GSM and GPS is built in tracker, please note that the
install location of the tracker must can receive the GPS signal, if the
OBD socket place can not receive GPS, please add an external OBD
wires to install the tracker to other place. please leave away the tracker
from big metal, and keep away from the magnetic components.
4. The GPS need 10-200 seconds to locate the position, when the GSM
signal is weak or the network is very busy, the SMS maybe delay to
send by the GSM network, this is normal.
5. The tracking data on our server will keep 3-6 months, the old data will
be deleted.

16
TROUBLESHOOTING:
1. The tracker auto power off: please confirm the tracker power supply is
connect properly.
2. After power on the tracker, the tracker RED LED keep on, and it has not
any repose, and no ring, please confirm the SIM card has been installed
properly, the SIM card PIN code is disable, and the SIM card has enough
charge, and the mobile phone can work well in that place. If the tracker
work well the Green LED will flash once every 4 seconds.
3. If the tracker can not upload location to website, please confirm the SIM
card internetfunction is enabled, and the APN or internetusername &
password have been set properly (call the mobile phone to confirm the
APN & internetusername and password). if the tracker do not move, the
tracker will not upload tracking, try to move the tracker.
4. If the tracker can not send back information by SMS, please confirm the
SIM card has ID caller display function and SMS service function, and
you have set the center or slave center number (only center or slave
center number can send SMS), and please read the SMS information of
the tracker sending back, and check the instruction & password is right or
not.
5. Can not login the platform: use SMS to check the ID of the tracker, and
try it again, if not success please contact distributor.
6. After go out the under ground park, some tracking maybe lost, the GSM
and GPS module will take a few minutes to receive signal and re-locate,
some tracking maybe lost, this is normal.
7. Some time some location point is lost, this is normal, in the transmit
process, some point maybe is lost, but this will not happen very often.

17
LA9039 SPECIFICATIONS:
Working Voltage 9-40V DC Communicate
Network
2G GSM / 3G
WCDMA / 4G LTE
2/3/4G Module (Can
be Customized) EC25-AUX (Quectel) 2G GSM Band B2/B3/B5/B8
3G WCDMA Band B1/B2/B4/B5/B8 4G LTE-FDD Band B1/B2/B3/B4/B5/
B7/B8/B28
2/3/4G & GPS
Antenna Internal & Internal GNSS Module GPS
Locate precision 5-10 Meters GPS Hot Start Time 1 second average
GPS Cold Start Time 36 seconds average Moving Tracking
Current <100mA /12V
Stop Standby
Online Current < 15 mA /12V Stop Standby Current < 5 mA /12V
CAN BUS Channel 2 Channels Backup Battery
Capacity 100mAh (Polymer)
Battery Recharging
Current <100mA 5V Working Temperature -20 0C to +55 0C
Absolute Working
Temperature -40 0C to +80 0C Storage Temperature -40 0C to +80 0C

18
WARRANTY:
This system has been tested before sold. We strongly recommend you to get
this system installed by professional. There is a one-year warranty except the
following condition:
1. Installed, fixed, or changed by personally or unprofessional.
2. Warranty will eliminate if the ownership of the tracker has been
changed.
3. Parts damaged by man-made.
4. Battery, adapter, wires, etc.
Warning: this device is just a auxiliary product that applying the location of
current object, we have not any responsibility if you have damage or lost in
using this tracker.
Customer
User Mobile Phone Tracker SIM card
Date Year Month Day
Model LA9039 Serial Number
Distributor

Distributed by:
Electus Distribution Pty. Ltd.
320 Victoria Rd, Rydalmere
NSW 2116 Australia
www.electusdistribution.com.au
Made in China