ENGINE (DIAGNOSTICS)(H4DO) > General Scan Tool

OPERATION

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 $06: Request on-board monitoring test results for intermittently monitored systems

(6) MODE $07: Request on-board monitoring test results for continuously monitored systems

(7) MODE $09: Request vehicle information

4. Read data according to the repairing procedure. (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

—

$03

Fuel system control status

—

$04

Calculated engine load value

%

$05

Engine coolant temperature

°C

$06

Short term fuel trim

%

$07

Long term fuel trim

%

$0B

Intake manifold absolute pressure

kPa

$0C

Engine speed

rpm

$0D

Vehicle speed

km/h and MPH

$0E

Ignition timing advance

°

$0F

Intake air temperature

°C and °F

$10

Intake air amount

g/s

$11

Throttle valve opening angle

%

$12

Secondary air control status (Euro 5 model)

—

$13

Air fuel ratio sensor

—

$15

Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor

V and %

$1C

Supporting OBD system

—

$1F

Elapsed time after starting the engine

sec

$21

Travel distance after the malfunction indicator light illuminates

km

$24

A/F value and A/F sensor output voltage (Bank 1 Sensor 1)

— and V

$2C

Target EGR

%

$2D

EGR deviation

%

$2E

Evaporative purge

%

$2F

Fuel level

%

$30

Number of warm ups after DTC clear

—

$31

Travel distance after DTC clear

km

$33

Barometric pressure

kPa

$41

Diagnostic monitor of each drive cycle

—

$42

ECM power voltage

V

$43

Absolute load

%

$44

A/F target lambda

—

$45

Relative throttle opening angle

%

$46

Ambient temperature

°C

$47

Absolute throttle opening angle 2

%

$49

Absolute accelerator opening angle 1

%

$4A

Absolute accelerator opening angle 2

%

$4C

Target throttle opening angle

%

$4D

Engine operating time while malfunction indicator lit

min

$4E

Elapsed time after DTC clear

min

$51

Fuel used

—

$5A

Relative accelerator opening angle

%

$65

Neutral status

—

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 of freeze frame data

—

$03

Fuel system control status

—

$04

Calculated engine load value

%

$05

Engine coolant temperature

°C

$06

Short term fuel trim

%

$07

Long term fuel trim

%

$0B

Intake manifold absolute pressure

kPa

$0C

Engine speed

rpm

$0D

Vehicle speed

km/h and MPH

$0E

Ignition timing advance

°

$0F

Intake air temperature

°C and °F

$10

Intake air amount

g/s

$11

Throttle valve opening angle

%

$12

Secondary air control status (Euro 5 model)

—

$13

Air fuel ratio sensor

—

$15

Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor

V and %

$1C

Supporting OBD system

—

$1F

Elapsed time after starting the engine

sec

$2C

Target EGR

%

$2D

EGR deviation

%

$2E

Evaporative purge

%

$2F

Fuel level

%

$33

Barometric pressure

kPa

$42

ECM power voltage

V

$43

Absolute load

%

$44

A/F target lambda

—

$45

Relative throttle opening angle

%

$46

Ambient temperature

°C

$47

Absolute throttle opening angle 2

%

$49

Absolute accelerator opening angle 1

%

$4A

Absolute accelerator opening angle 2

%

$4C

Target throttle opening angle

%

$65

Neutral status

—

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 “Read 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 (general scan tool diagnostic information).

NOTE:

• Refer to general scan tool manufacturer’s instruction manual to clear the emission-related diagnostic information (MODE $04).

• Initial diagnosis of electronic throttle control is performed after memory clearance. Wait for 10 seconds or more after turning the ignition switch to ON, and then start the engine.

6. MODE $06

Refer to test value of troubleshooting and data of test limit indicated on the support data bit sequence table. A list of the support data is shown in the following table.

• Euro 4 model

OBDMID

TID

SID

Diagnostic item

$01

$05

$10

A/F sensor response failure (Bank 1 Sensor 1)

$06

$10

$81

$0C

A/F sensor continuity failure (Bank 1 Sensor 1)

$82

$0E

$83

$14

$84

$0B

A/F sensor range failure (Bank 1 Sensor 1)

$85

$0B

$A7

$0C

$A8

$0C

$A9

$0B

$02

$05

$10

Oxygen sensor response failure (Bank 1 Sensor 2)

$07

$0B

Oxygen sensor voltage failure (Bank 1 Sensor 2)

$08

$0B

$21

$89

$20

Catalyst deterioration diagnosis (Bank 1)

$31

$8A

$FD

Exhaust gas recirculation control circuit range/performance

$41

$99

$10

A/F sensor heater failure (Bank 1 Sensor 1)

$9A

$10

$9B

$10

A/F sensor heater characteristics failure (Bank 1 Sensor 1)

$AB

$10

A/F sensor heater failure (Bank 1 Sensor 1)

$42

$99

$0E

Oxygen sensor heater failure (Bank 1 Sensor 2)

$9A

$0E

• Euro 5 model

OBDMID

TID

SID

Diagnostic item

$01

$81

$0A

A/F sensor continuity failure (Bank 1 Sensor 1)

$82

$8D

$83

$14

$84

$1E

A/F sensor range failure (Bank 1 Sensor 1)

$85

$1E

$86

$20

A/F sensor response failure (Bank 1 Sensor 1)

$02

$87

$0B

Oxygen sensor circuit failure (Bank 1 Sensor 2)

$88

$0B

$07

$0B

Oxygen sensor drop failure (Bank 1 Sensor 2)

$08

$0B

$A5

$0B

$05

$10

Oxygen sensor response failure (Bank 1 Sensor 2)

$06

$10

$21

$89

$20

Catalyst deterioration diagnosis (Bank 1)

$31

$8A

$FD

Exhaust gas recirculation control circuit range/performance

$35

$8B

$9D

VVT monitor (Bank 1)

$8C

$9D

$8D

$9D

$8E

$9D

$36

$8B

$9D

VVT monitor (Bank 2)

$8C

$9D

$8D

$9D

$8E

$9D

$41

$99

$24

A/F sensor heater failure (Bank 1 Sensor 1)

$9A

$24

$9B

$14

A/F sensor heater characteristics failure (Bank 1 Sensor 1)

$71

$9E

$17

Secondary air system (all systems)

$9F

$0B

$A0

$0B

$B0

$17

Secondary air system (relay 1 — combination valve 2)

$B1

$31

7. MODE $07

Refer to the data of DTC (pending code) for troubleshooting result about emission in the first time.

8. MODE $09

Refer to the data of vehicle specification (V.I.N., calibration ID, etc.).