FMB001 OBD II settings

Introduction

This page is dedicated for explanation of General OBD II settings in Teltonika configurator.

OBD II settings

OBD II Feature

• Disable ― Disables OBD II parameter requesting/reading from the vehicle.

• OBD (Auto) ― OBD Auto refers to the functionality that utilizes the OBD II standard protocol, which supports standardized Parameter IDs (PIDs), such as PID 010D for vehicle speed. When OBD Auto is enabled, the device sends Mode 01 (Show Current Data) requests to the vehicle's ECU, allowing access to standard parameters like vehicle speed, engine RPM, and more.

• OBD Non-Compliant ― OBD Non-Compliant mode refers to vehicles that do not support the OBD II standard protocol (recommended setting for EV’s). As a result, standard Parameter IDs (PIDs) defined by the OBD II specification such as vehicle speed (010D) - cannot be requested.Instead, this mode relies exclusively on OEM-specific parameters or non-standard data formats, which can vary significantly across different vehicle makes and models.
• ELD ― Electronic Logging Device (ELD) functionality, enabling it to automatically record and transmit key vehicle and engine usage data. This feature is particularly beneficial for fleet management, driver log-book maintenance, and regulatory compliance. After enabling ELD - new section with J1939 parameters can be found in „ELD“ section on the left bottom of configurator.

ELD Data Send Period ― ELD data send period (s) – Sets period of ELD data sending via Bluetooth. Period range from 2 to 65535 seconds.

• Send ELD data via Bluetooth ― By enabling ELD functionality, additional Send ELD data via Bluetooth menu appears in OBD II Settings screen. ELD data sending via Bluetooth can be toggled in this menu. Send period (s) can be adjusted, if function is enabled.

OBD VIN Settings

VIN Source

• Auto detect ― Automatically acquire VIN number from the vehicle via OBD.
• Manually ― Enter VIN value manually.

OBD Features

EV Charge Monitoring

Introduction

This feature is designed for EV vehicles to detect the start and end of EV charging window and during this time request High-Voltage Battery system data through these PID’s:

HVBattery Charge State, HVBattery Charge Level, HVBattery Temperature, HVBattery Voltage, HVBattery Current, HVBattery Min Cell Temp, HVBattery Max Cell Temp, HVBattery Available Energy, Slow Charge Count, Fast Charge Count.

Configuration

EV Charge Monitoring is configurable from OBD Feature set (40006) and can be selected only if other features from OBD Feature set are disabled. After selecting EV Charging, two configurable parameters will appear: EV Charge Start Timeout (40009) and EV Charge Stop Timeout (40010). These are used to configure timing for entering and exiting charging states.

Note: The feature is intended to work with EVs only, a Non-OBD Compliant mode must be configured to avoid unexpected device behavior.

State Switching

EV Charge Start Timeout and EV Charge Stop Timeout define how long the system waits to confirm charging start and charging stop events based on HVBattery Charge Level (SOC %) increase or HVBattery Charge State transitions. These timeouts are not hardcoded to accommodate the wide range of EVs and charging system characteristics. Factors such as battery pack capacity, charging current, and charging infrastructure type (e.g., AC chargers, DC fast chargers) can significantly affect how quickly HVBattery Charge Level (SOC %) changes are detected. As these timeouts are configurable, EV Charging monitoring feature provides ability for fine tuning charging state switch mechanism and adaptability for integration when it comes to varied vehicle platforms and charging scenarios.

OBD/OEM feature can be locked due to the following reasons:

• 192 – Locked when external voltage from ADC is less than 13300 mV or there is no movement.
• 196 – Locked due to OEM Ignition change from 1 to 0.
• 197 – Locked if OBD feature was unlocked previously and OEM Ignition is off without change.

The device will no longer lock requesting and go to IDLE OBD FSM state. The device will instead go to a new EV CHARGE WAIT state, during which it will request HVBattery Charge Level (SOC %) or HVBattery Charge State periodically in order to detect SOC % increase or HVBattery Charge State = 1, which corresponds to EV charging start.

Conditions for exiting EV CHARGE WAIT state:

• Movement detected by AXL during EV CHARGE WAIT state.
• Charge start detected by SOC % increase or HVBattery Charge State = 1 condition.
• 5 BUS ERRORs received in a row.
• Scanning for EV Charge start condition has failed 5 times in a row for both HVBattery Charge State, HVBattery Charge Level.
• EV Charge Start Timeout elapsed before EV Charge start condition has been detected.

Conditions for exiting EV CHARGE state:

• Movement detected by AXL during EV CHARGE state.
• 5 BUS ERRORs received in a row.
• EV Charge Stop Timeout has elapsed before SOC % increase has been detected or HVBattery Charge State = 0 (EV Charge Stop Timeout has no effect if HVBattery Charge State is used).

Proper feature function relies on two points:

• Device contains correct OEM file.
• At least one of HVBattery Charge State or HVBattery Charge Level requests are functional.

As HVBattery Charge State is used less, HVBattery Charge Level (SOC %) has higher priority for OBD FSM state switch, unless HVBattery Charge Level has been marked as not functioning. Then EV Charging Flag for EV charging source is preserved between OBD FSM state switches and in such case HVBattery Charge State will be used.

Odometer Unit Type

• Automatic ― Autodetects if vehicle odometer in km or miles, will convert to km if needed.
• No Conversion ― Set odometer units to km, no conversion is done.
• Convert From Miles ― Set odometer units to miles, will convert from miles to kilometers.

OEM Reset

Reset current OBD OEM file (initiate new OBD OEM file download). You can verify whether the OBD OEM file has been successfully downloaded in the FOTA web portal.

OBD II to FMS Adapter and J1939 Configuration

1. Connect your OBD device to PC via USB or Bluetooth.
2. Open Teltonika Configurator and find your device in the list.
3. Select your device from the list.
4. Navigate to System and under System Settings Enable Codec 8 Extended protocol.
5. Open OBD II section on the left.
6. In General -> OBD II Settings -> OBD Feature select ELD.
7. In OBD VIN settings-> VIN Source select prefered source. Some heavy duty vehicles may not automaticly provide VIN number, in that case we recommend to setup VIN manually.

8. Save the configuration by pressing Save to device on the top.
9. New section with J1939 parameters can be found in ELD section on the right bottom.

OBD II Elements

Configure I/O elements received from the OBD socket to include their data into AVL packets.

• OBD elements can be found here.
• OBD OEM elements can be found here.
• OBD EV (electric vehicle) specific elements (AVL ID's*) list and their descriptions can be found here.

^{* The AVL ID list is a table that shows all the data values the Teltonika GPS tracker can send to a server}

OBD Parameter List

Parameter List is a catalog of all configuration settings for the Teltonika GPS tracker. It shows each parameter’s ID, type, default value, and allowed range so you can configure how the device behaves. Can be found here.