Table of Contents
Advertisement
Advertisement
Table of Contents
Summary of Contents for JDiag FasDiag JD301
- Page 1 FasDiag JD301/316 User Manual OBDII Car Diagnostic Scanner...
-
Page 2: General Information
1. General Information • On-Board Diagnostics (OBD) II The OBD II system is designed to monitor emission control systems and key engine components by performing either continuous or periodic tests of specific components and vehicle conditions. When a problem is detected, the OBD II system turns on a warning lamp (MIL) on the vehicle instrument panel to alert the driver typically by the phrase of “Check Engine”... - Page 3 illustrate the structure of the digits: • Location of the Data Link Connector (DLC) The DLC (Data Link Connector or Diagnostic Link Connector) is the standardized 16-cavity connector where diagnostic scan tools interface with the vehicle's on-board computer. The DLC is usually located 12 inches from the center of the instrument panel (dash), under or around the driver's side for most vehicles.
-
Page 4: Obd Ii Readiness Monitors
• OBD II Readiness Monitors An important part of a vehicle's OBD II system is the Readiness Monitors, which are indicators used to find out if all of the emissions components have been evaluated by the OBD II system. They are running periodic tests on specific systems and components to ensure that they are performing within allowable limits. - Page 5 operated under specific conditions before the monitor is ready. These monitors are termed non-continuous monitors. For different ignition type engines, the available monitors are different too. The following monitors are to be used for spark ignition engines only 1. EGR System 2.
- Page 6 6. PM filter • OBD II Monitor Readiness Status OBD II systems must indicate whether or not the vehicle's PCM's monitor system has completed testing on each component. Components that have been tested will be reported as “Ready”, or “Complete”, meaning they have been tested by the OBD II system. The purpose of recording readiness status is to allow inspectors to determine if the vehicle's OBD II system has tested all the components and/or systems.
-
Page 7: Using The Scan Tool
Here is a basic introduction to the OBD II communication protocol. Mode byte: The first byte in the stream is the mode number. There ar 9 modes for diagnostic requests, so this first byte is from 1 to 9. The first byte in the response data bytes is this same number plus 64. For example, a mode 1 request would have the first data byte = 1, and the response would have the first data byte = 65. -
Page 8: Specifications
② YELLOW LED – Indicates there is a possible problem. A “Pending” DTC is present and/or some of the vehicle's emission monitors have not run their diagnostic testing. ③ GREEN LED – Indicates that engine systems are running normally (The number of monitors on the vehicle which are active and performing their diagnostic testing is in the allowed limit, and no DTCs are present). -
Page 9: Accessories Included
5) Dimensions: Length Width Height 117 mm (4.61”) 72 mm (2.83”) 18 mm (0.71”) 6) NW: 0.18kg (0.39lb), GW: 0.21 kg(0.46lb) • Accessories Included A. User’s Manual - Instructions on tool operations. B. OBD2 cable - Provides power to tool and communicates between tool and vehicle. -
Page 10: System Setup
A. Locate DLC on vehicle. • A plastic DLC cover may be found for some vehicles and you need to remove it before plugging the OBD2 cable. B. Plug the tool's OBD II cable to the vehicle's DLC. • System Setup The scan tool allows you to make the following adjustments and settings: 1. -
Page 11: Language Setup
When the scan tool is powered on, it displays a Main Screen. From the Main Screen: Use the Direction button to select Set up, and press the OK button. Follow the instructions to make adjustments an settings as described in the above setup options. •... - Page 12 This function allows you to turn on/off the build-in speaker for key pressing. ◆ The default setting is Beep On. 1. From System Setup screen, use the Direction button to sele Key Beep Set and press the OK button. 2. From Key Beep Set menu, use the Direction button to select Beep ON or Beep OFF to turn on/off the beep.
-
Page 13: Keyboard Test
The Display Test function checks if the LCD display is working normally. ◆ From System Setup screen, use the Direction button to sele Tool Self-test, and press the OK button. ◆ Select Display Test from Tool Self-test menu and press the OK button to start test. - Page 14 • In the LED Self-test menu, use the Direction button to selec one or more LED lamps to check. The LED should turn on or off according to the selected commands. • When completed, press the OK button to exit. •...
- Page 15 A communication error occurs if the scan tool fails to communicate with the vehicle's ECU (Engine Control Unit). You need to do the following to check up: √ Verify that the ignition is ON. √ Check if the scan tool's OBD II connector is securely connected to the vehicle's DLC.
-
Page 16: Obdii Diagnostics
√ Check vehicle battery to make sure it is still good with at least 8.0 V • LED lamps not working Make sure the OBD II cable is connected to the DLC securely. to check the scan tool. Verify the ignition key is in the KOER position. Run the LED Test in the System Setup menu. - Page 17 3. Plug the scan tool cable connector into the vehicle's DLC. 4. Turn the ignition on. Engine can be off or running. 5. Turn on the scan tool. Use the Direction button to select OBDII/EOBD from the Main Screen. 6. Press the OK button to wait for the Menu to appear. A sequence of messages displaying the OBDII protocols will be observed on the display until the vehicle protocol is detected.
-
Page 18: Reading Codes
• Reading Codes Reading Codes can be done with the key on engine off (KOEO) or with the key on engine running (KOER). Stored Codes are also known as “hard codes”, which are fault codes, or trouble codes that have been stored in the vehicle computer memory because the faults have reoccurred for more than a specified amount of key-cycles. - Page 19 from the Read Codes menu and press the OK button. • If there is not any Diagnostic Trouble Code, the display indicates “No (pending) codes are stored in the module!” Wait a few seconds or press any key to return to previous screen. NOTE: Permanent Codes function is available for merely vehicles supporting the CAN protocols.
-
Page 20: Erasing Codes
• Erasing Codes CAUTION: Erasing the Diagnostic Trouble Codes may allow the scan tool to delete not only the codes from the vehicle’s on-board computer, but also “Freeze Frame” data and manufacturer specific enhanced data. Further, the I/M Readiness Monitor Status for all vehicle monitors is reset to Not Ready or Not Complete status. - Page 21 with Engine off!” message appears. • Live Data The function allows viewing of live or real time PID data of vehicle’s computer module(s). • To view live data, use the Direction button to select Live Data from Diagnostic Menu and press the OK button. •...
-
Page 22: Retrieving I/M Readiness Status
2. Wait a few seconds while the scan tool validates the PID MAP. 3. If retrieved information covers more than one screen, use the Direction button, as necessary, until all the data have been shown • If there is no freeze frame data available, an advisory message “No freeze frame data stored!”... -
Page 23: Viewing Vehicle Information
An I/M Readiness Status result of “NO” does not necessarily indicate that the vehicle being tested will fail the state I/M inspection. For some states, one or more such monitors may be allowed to be “Not Ready” to pass the emissions inspection. 1. - Page 24 Guarantee: The OBDII is protected with a warranty of JDiag in 24 months. This protection applies from the date of original purchase and is valid for problems which were caused by the manufacturer. If you need any assistance, please send us an email to info@jdiag.