Vident iEasy320HD Code Reader FAQs
Q1: System halts when reading the data stream. What is the reason?
A1: It may be caused by a slackened connector. Please turn off the iEasy320HD, firmly connect the connector, and switch on it again.
Q2: Screen of the main unit flashes at engine ignition start.
A2: Caused by electromagnetic disturbing, and this is a normal phenomenon.
Q3: There is no response when communicating with the on-board computer.
A3: Please confirm the proper voltage of the power supply and check if the throttle has been closed, the transmission is in the neutral position, and the water is in proper temperature.
Q4: Why are there so many fault codes?
A4: Usually, it's caused by poor connection or fault circuit grounding.
Q: How to Update iEasy320HD
A: Please download the update client from the website as following: www.videnttech.com/support/update/
Or visit the individual product page of iEasy320HD, click the download to install.
VIDENT iEasy320HD Available Models
Work on almost all cars, mini vans and light duty vehicles. Support all OBDII protocols: CAN, J1850 PWM, J1850 VPW, ISO9141 and KWP2000 American Car from 1996 up to now European Car from 2001 up to now Asian Car from 2008 up to now. Cover Class 4 (14,001 lbs) through Class 8 (33,000 lbs) Heavy Duty Trucks. Support Truck Vehicles:
* USA:
Freightliner / Sterling / Kenworth / Paccar / Peterbilt / Caterpillar - SAE J1939
Mack / International - SAE J1939 (CANBUS) / SAE1708 (RS485) / SAE1587 (RS485)
* Canada: Western Star - J1939
* Japan: ISUZU - J1939
* United Kingdom: ERF / Foden / Seddon-Atikinson - J1939
* Germany: Mecedes Benz / MAN - J1939
* Sweden: VOLVO / Scania - J1939
* France: Renult - J1939
* Italy: IVECO - J1939
* Holland: DAF - J1939
* Finland: SISU - J1939
* Austria: STEYR - J1939
iEasy320HD General Information
1. About DTC
Diagnostic Trouble Codes (DTC) are codes that are stored by the on-board computer diagnostic system in response to a problem found in the vehicle. These codes identify a particular problem area and are intended to provide you with a guide as to where a fault might be occurring within a vehicle. This section explains the basic elements of fault codes for J1587/J1708 and J1939 data bus protocols, how to view these codes on iEasy320HD, and what they mean. Each fault code on iEasy320HD contains three distinct pieces of information, as described below.
J1587/J1708 fault codes consist of the following, in this order:
•Subsystem Identifier (SID) - Indicates what function on the ECU has failed.
•Failure Mode Indicator (FMI) - Indicates in what way the function failed.
•Occurrence (OC) - Indicates the occurrence times of fault codes.
J1939 fault codes consist of the following, in this order:
•Suspect Parameter Number (SPN) - Indicates what function on the ECU has failed.
•Failure Mode Indicator (FMI) - Indicates in what way the function failed.
•Occurrence (OC) - Indicates the occurrence times of fault codes.
2. J1708/J1587/J1939
SAE J1708, SAE J1587, and SAE J1939 are automotive diagnostic protocol standard developed by the Society of Automotive Engineers (SAE).
SAE J1708
SAE J1708 is a standard used for serial communications between ECUs on a heavy-duty vehicle and also between a computer and the vehicle.
With respect to the Open System Interconnection model (OSI), J1708 defines the physical layer. Common higher-layer protocols that operate on top of J1708 are SAE J1587and SAE J1922.
SAE J1587
SAE J1587 is an automotive diagnostic protocol standard developed by the Society of Automotive Engineers (SAE) for heavy-duty and most medium-duty vehicles built after 1985. The J1587 protocol uses different diagnostic connectors. Up to 1995, individual OEMs used their own connectors. From 1996 to 2001, the 6-pin Deutsch-connector was standard. Beginning in 2001, most OEMs converted to the 9-pin Deutsch. Some OEMs still use the 6-pin Deutsch. It has mostly been used for US-made vehicles, and also by Volvo.
SAE J1708 makes up the physical and data link layers while SAE J1587 makes up the transport and application layers with respect to the OSI model. SAEJ1587 is used in conjunction with SAE J1708 for automobile communication.
SAE J1939
SAE J1939 is the vehicle bus standard used for communication and diagnostics among vehicle components, originally by the car and heavy-duty truck industry in the United States.
SAE J1939 is used in the commercial vehicle area for communication throughout the vehicle. With a different physical layer, it is used between the tractor and trailer. This is specified in ISO 11992.
SAE J1939 can be considered the replacement for the older SAE J1708 and SAE J1587 specifications.
SAE J1939 has been adopted widely by diesel engine manufacturers.
One driving force behind this is the increasing adoption of the engine Electronic Control Unit (ECU), which provides one method of controlling exhaust gas emissions within US and European standards.
Consequently, SAE J1939 can now be found in a range of diesel-powered applications: vehicles (on-and-off-road), marine propulsion, power generation, and industrial pumping.
Applications of J1939 now include off-highway, truck, bus, and even some passenger car applications.
J1939 - I/M Readiness, Engine, Transmission, Brake, Cluster, Body Control, Chassis
J1587/1708 (6/9PIN) - Quick Check Live Data, Engine, Transmission, Brake, Instrument Panel, Vehicle Management, Fuel System, Cab Climate, Particulate
J1587/1708 (16PIN) - Quick Check Live Data, Engine, Transmission, Brake, Instrument Panel, Vehicle Management, Fuel System, Cab Climate, Particulate
VIDENT iEasy320HD Specification
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
Power: 8 to 18 V provided via vehicle
Supported Protocols: J1939, J1587/1708, J1850VPW, J1850PWM, ISO9141, KWP2000(ISO14230-4) and CAN(Control Area Network ISO15765-4)
Unit Dimensions : 190mm(7.5”)*100mm(3.9'')*35mm(1.4”)
Weight: 380g
QTY/CTN: 44SETS
Weight/CTN: 23.5KG
CTN MEAS: 52*52*38cm
Package includes: