1. HOW TO USE GENERAL SCAN TOOL
1. Prepare a scan tool (general scan tool) required by SAE J1978.
2. Connect the general scan tool to data link connector located in the lower portion of the instrument panel (on the driver’s side).
3. Using the general scan tool, call up each data. General scan tool functions consist of:
(1) MODE $01: Current powertrain diagnostic data
(2) MODE $02: Powertrain freeze frame data
(3) MODE $03: Emission-related powertrain DTC
(4) MODE $04: Clear/Reset emission-related diagnostic information
(5) MODE $07: Request on-board monitoring test results for continuously monitored systems
(6) MODE $09: Request vehicle information
Read out the data according to repair procedures. (For detailed operation procedure, refer to the general scan tool operation manual.)
NOTE:
For details concerning DTC, refer to “List of Diagnostic Trouble Code (DTC)”. 
2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refer to data denoting the current operating condition of analog input/output, digital input/output or the powertrain system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
|
PID |
Data |
Unit of measure |
|
$01 |
Number of emission-related powertrain DTC, and malfunction indicator light status and diagnosis support information |
— |
|
$04 |
Calculated engine load value |
% |
|
$05 |
Engine coolant temperature |
°C |
|
$0B |
Intake manifold absolute pressure |
kPa |
|
$0C |
Engine speed |
rpm |
|
$0D |
Vehicle speed |
km/h |
|
$0F |
Intake air temperature |
°C |
|
$10 |
Intake air amount |
g/s |
|
$11 |
Throttle valve absolute opening angle |
% |
|
$1C |
Supporting OBD system |
— |
|
$1F |
Time elapsed after engine start |
sec |
|
$21 |
Travel distance after the malfunction indicator light illuminates |
km/h |
|
$23 |
Common rail pressure |
kPa |
|
$30 |
Number of warm ups after DTC clear |
— |
|
$31 |
Travel distance after DTC clear |
km |
|
$33 |
Barometric pressure |
kPa |
|
$42 |
ECM power voltage |
V |
|
$46 |
Ambient temperature |
°C |
|
$49 |
Absolute accelerator opening angle 1 |
% |
|
$4A |
Absolute accelerator opening angle 2 |
% |
|
$4C |
Target throttle opening angle |
% |
NOTE:
Refer to general scan tool manufacturer’s operation manual to access current powertrain diagnostic data (MODE $01).
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refer to data denoting the operating condition when trouble is detected by on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
|
PID |
Data |
Unit of measure |
|
$02 |
DTC that caused the freeze frame data storage required by CARB |
— |
|
$04 |
Calculated engine load value |
% |
|
$05 |
Engine coolant temperature |
°C |
|
$0B |
Intake manifold absolute pressure |
kPa |
|
$0C |
Engine speed |
rpm |
|
$0D |
Vehicle speed |
km/h |
|
$0F |
Intake air temperature |
°C |
|
$10 |
Intake air amount |
g/s |
|
$11 |
Throttle valve absolute opening angle |
% |
|
$1F |
Time elapsed after engine start |
sec |
|
$23 |
Common rail pressure |
kPa |
|
$33 |
Barometric pressure |
kPa |
|
$3C |
Catalyst temperature bank 1 sensor 1 |
°C |
|
$3E |
Catalyst temperature bank 1 sensor 2 |
°C |
|
$42 |
ECM power voltage |
V |
|
$46 |
Ambient temperature |
°C |
|
$49 |
Absolute accelerator opening angle 1 |
% |
|
$4A |
Absolute accelerator opening angle 2 |
% |
|
$4C |
Target throttle opening angle |
% |
|
$5A |
Relative accelerator opening angle |
% |
|
$65 |
Neutral status |
— |
|
$69 |
Actual EGR opening angle 1 |
% |
|
$71 |
Actual turbo vane opening angle 1 |
% |
NOTE:
Refer to general scan tool manufacturer’s operation manual to access freeze frame data (MODE $02).
4. MODE $03 (EMISSION-RELATED POWERTRAIN DTC)
Refer to “List of Diagnostic Trouble Code (DTC)” for information about data denoting emission-related powertrain DTC.
5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
Refer to the mode used to clear or reset emission-related diagnostic information.
NOTE:
Refer to general scan tool manufacturer’s instruction manual to clear the emission-related diagnostic information (MODE $04).
Refer to the data of DTC (pending code) for troubleshooting result about emission in the first time.
Refer to the data of vehicle specification (V.I.N., calibration ID, etc.).