Data List / Active Test

DATA LIST

HINT:

By reading the DATA LIST displayed on an intelligent tester or OBD II scan tool, you can check values, including those of the switches, sensors, and actuators, without removing any parts. Reading the DATA LIST as the first step of troubleshooting is one method of shortening diagnostic time.

NOTE: In the table below, the values listed under Normal Conditions are for reference only. Do not depend solely on these values when determining whether or not a part is faulty.

Warm up the engine.
Turn the ignition switch to OFF.
Connect an intelligent tester or OBD II scan tool to the DLC3.
Turn the ignition switch to ON.
Turn the tester or scan tool ON.
If using an intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
If using an OBD II scan tool, refer to the instruction information.

Check the values by referring to the table below.

DATA LIST REFERENCE

Intelligent Tester Displays

Measurement Items: Ranges (Display)

Normal Conditions ⁽¹⁾

Diagnostic Notes

INJECTOR

Injection period of No. 1 cylinder: Min.: 0 ms, Max: 32.64 ms

0.8 to 2.0 ms: Idling

IGN ADVANCE

Ignition timing advance for No. 1 cylinder/ Min.: -64 deg., Max.: 63.5 deg.

BTDC 4 to 12°: Idling

IAC DUTY RATIO

Intake air control valve duty ratio Opening ratio rotary solenoid type IAC valve: Min.: 0 %, Max.: 99 %

25 to 45 %: Idling 25 to 45 %: Running without load 2,500 rpm)

CALC LOAD

Calculated load by ECM: Min.: 0 %, Max.: 100 %

9.1 to 20.0 %: Idling 11.0 to 23.0 %: Running without load (2,500 rpm)

MAF

Air flow rate from Mass Air Flow (MAF) meter: Min.: 0 gm/s, Max.: 655 gm/s

1.5 to 5.0 gm/s.: Idling 5.0 to 15.0 gm/s: Revving up without load (2,500 rpm)

If value approximately 0.0 gm/s:

MAF meter power source circuit open
VG circuit open or short

If value 160.0 gm/s or more:

E2G circuit open

ENGINE SPD

Engine speed: Min.: 0 rpm, Max.: 16,383 rpm

750 to 850 rpm: Idling

COOLANT TEMP

Engine coolant temperature: Min.: -40°C, Max.: 140°C

80° to 95°C (176° to 203°F): After warming up engine:

If value -40°C (-40°F): sensor circuit is open
If value greater than 140°C (284°F):
sensor circuit is shorted

INTAKE AIR

Intake air temperature: Min.: -40°C, Max.: 140°C

Equivalent to ambient temperature

If value -40°C (-40°F): sensor circuit is open
If value greater than 140°C (284°F):
sensor circuit shorted

THROTTLE POS

Absolute throttle position sensor: Min.: 0 %, Max.: 100 %

Absolute throttle position sensor: Min.: 0 %, Max.: 100 % 64 to 98 %: Throttle valve fully open

Read value with ignition switch ON Do not start engine)

CTP SW

Closed throttle position switch: ON or OFF

ON: Throttle valve fully closed
OFF: Throttle valve open

VEHICLE SPD

Vehicle speed: Min.: 0 km/h, Max.: 255 km/h

Same as speedometer reading

O2S B1 S1

Heated Oxygen (HO2) sensor output voltage for bank 1 sensor 1: Min.: 0 V, Max.: 1.275 V

0.1 to 0.9 V: Idling

Performing either Active Test, INJ VOL or A/F CONTROL, enables front HO2 sensor voltage output to be checked.

O2S B1 S2

Heated Oxygen (HO2) sensor output voltage for bank 1 sensor 2: Min.: 0 V, Max.: 1.275 V

0.1 to 0.9 V: Idling

Performing either Active Test, INJ VOL or A/F CONTROL, enables rear HO2 sensor voltage output to be checked.

VAPOR PRESS

Vapor pressure: Min.: -4.125 kPa, Max.: 2.125 kPa

0 kPa: Fuel tank cap removed

Pressure inside fuel tank can be read by vapor pressure sensor

SHORT FT #1

Short term fuel trim of bank 1: Min.: -100 %, Max.: 100 %

0 +- 20%

Short-term fuel compensation used to maintain air-fuel ratio at stoichiometric levels

LONG FT #1

Long term fuel trim of bank 1: Min.: -100 %, Max.: 100 %

0 +- 20%

Overall long-term fuel compensation that helps maintain air-fuel ratio at stoichiometric levels (moderates long-term fuel trim from central value)

TOTAL FT #1

Total fuel trim of bank 1: Average value for fuel trim system of bank 1: Min.: 0.5, Max.: 1.496

0.5 to 1.4: Idling

O2FT B1 S1

Short term fuel trim associated with bank 1 sensor 1: Min.: -100 %, Max.: 100 %

0 +- 20%

O2FT B1 S2

Short term fuel trim associated with bank 1 sensor 2: Min.: -100 %, Max.: 100 %

0 +- 20%

FUEL SYS #1

Fuel system status (Bank 1): OL or CL or OL DRIVE or OL FAULT or CL FAULT

CL: Idling with warm engine

OL (Open Loop): Conditions for closed loop not yet satisfied
CL (Closed Loop): Using HO2 sensor as feedback for fuel control
OL DRIVE: Open loop due to driving conditions (fuel enrichment)
OL FAULT: Open loop due to detected system fault
CL FAULT: Closed loop but HO2 sensor used for fuel control malfunctioning

FC IDL

Fuel cut idling: ON or OFF

ON: Fuel-cut operation

ON: Throttle valve fully closed and engine speed 1,500 rpm or more

O2 LR B1 S1

Response time of heated oxygen sensor, lean to rich (bank 1 sensor 1): Min.: 0 ms, Max.: 16,711 ms

0 to 1,000 ms: Idling after warming up engine:

O2 RL B1 S1

Response time of heated oxygen sensor, from rich to lean (bank 1 sensor 1): Min.: 0 ms, Max.: 16,711 ms

0 to 1,000 ms: Idling after warming up engine:

MIL

MIL status: ON or OFF

ON: MIL ON

STARTER SIG

Starter signal: ON or OFF

ON: Cranking

A/C SIG

A/C signal: ON or OFF

ON: A/C ON

ELECT LOAD SIG

Electrical load signal: ON or OFF

ON: Defogger switch ON

PS OIL PRESS SW

Power steering signal : ON or OFF

OFF: Steering wheel position straightforward
ON: Other than above

PS SIGNAL

Power steering signal: ON or OFF

ON: When steering wheel first turned after ignition switch turned to ON

This signal status usually ON until ignition switch turned to OFF

FUEL PUMP / SPD

Fuel pump/speed status : ON/H or OFF/M, L

ON: Idling

A/C MAG CLUTCH

A/C magnet clutch status : ON or OFF

ON: A/C magnet clutch ON

EVAP VSV

VSV status for EVAP control: ON or OFF

ON: VSV operation

EVAP VSV controlled by ECM (ground side duty control)

VVT CTRL B1

VVT control status (bank 1): ON or OFF

ON: VVT system operation

IGNITION

Ignition counter: Min.: 0, Max.: 400

0 to 400

CYL #1, #2, #3, #4

Misfire ratio of cylinder 1 to 4: Min.: 0 %, Max.: 50 %

0 %

Only displayed in idling

MISFIRE LOAD

Engine load for first misfire range: Min.: 0 g/rev, Max.: 3.98 g/rev

0 g/rev: Misfire 0

MISFIRE RPM

Engine RPM for first misfire range: Min.: 0 rpm, Max.: 6,375 rpm

0 rpm: Misfire 0

O2 LR B1 S2

Response time of heated oxygen sensor, lean to rich (bank 1 sensor 2): Min.: 0 ms, Max.: 16,711 ms

0 to 1,000 ms: Idling after warming up engine

FC TAU

Fuel cut TAU: Fuel cut during very light load

ON: Fuel cut operation

Fuel cut performed under very light load to prevent incomplete engine combustion

O2 RL B1 S2

Response time of heated oxygen sensor, rich to lean (bank 1 sensor 2)/ Min.: 0 ms, Max.: 16,711 ms

0 to 1,000 ms: Idling after warming up engine

SECOND AIR VSV

VSV status for secondary air control

ON: VSV operation

INTAKE AIR CTL VSV

VSV status for intake air control: ON or OFF

ON: VSV operation

SECONDARY AIR

Second air system status: ON or OFF

ON: Second air system operation

CHECK MODE

Check mode: ON or OFF

ON: Check mode ON

See CHECK MODE PROCEDURE

#CODES

#Codes/ Min.: 0, Max.: 255

Number of detected DTCs

⁽¹⁾	If no idling conditions are specified, the transmission gear selector lever should be in the N or P position, and the A/C switch and all accessory switches should be OFF.

ACTIVE TEST

HINT:

Performing an ACTIVE TEST enables components including the relays, VSV (Vacuum Switching Valve), and actuators, to be operated without removing any parts. The ACTIVE TEST can be performed with an intelligent tester. Performing an ACTIVE TEST as the first step of troubleshooting is one method of shortening diagnostic time.

DATA LIST can be displayed during ACTIVE TESTs.

Connect an intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester ON.
Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.

Perform the ACTIVE TEST by referring to the table below.

ACTIVE TEST REFERENCE

Intelligent Tester Display	Test Details	Control Ranges	Diagnostic Note
INJ VOL	Change Injection volume	Between -12.% and 25 %	All injectors tested at the same time Perform test at less than 3,000 rpm Injection volume can be changed in 1% graduations within control range
A/F CONTROL	Change Injection volume	Lower by 12.5% or increase by 25 %	Perform test at less than 3,000 rpm A/F CONTROL enables checking and graphing of front and rear Heated Oxygen (HO2) sensor voltage outputs To conduct test, select following menu items: ACTIVE TEST / A/F CONTROL / USER DATA / O2S B1 S1 and O2S B1 S2, and press YES and ENTER followed by F4
IAC DUTY RATIO	Change IAC duty ratio	Between 0 % and 90 %	Perform test under following conditions: Engine speed: Idling Vehicle speed: 0 mph (0 km/h) Battery voltage: 8.5 V or more
EVAP VSV (ALONE)	Activate EVAP VSV control	ON/OFF	-
A/C MAG CLUTCH	Activate A/C magnet clutch	ON/OFF	-
FUEL PUMP/SPD	Activate fuel pump (C/OPN Relay)	ON/OFF	-
VCUUM PUMP (ALONE)	Activate vacuum pump (built into pump module)	ON/OFF	-
VENT VALVE (ALONE)	Activate vent valve (built into pump module)	ON/OFF	-
SECOND AIR VSV	Activate the VSV for secondary air	ON/OFF	-
VVTL CTRL B1	Activate the VVTL-i system (Bank 1)	ON/OFF	-
INTAKE AIR CTL VSV	Activate the VSV for intake air control	ON/OFF	-
VVT CTRL B1	Activate the VVT system (Bank 1)	ON/OFF	Engine stalls or idles roughly when OCV turned on Normal engine running or idling when OCV off
TC/TE1	Connection TC and TE1	ON/OFF	ON: TC and TE1 connected OFF: TC and TE1 disconnected
F/C IDL PROHBT	Prohibit idling fuel cut control	ON/OFF	-

SYSTEM CHECK

HINT:

Performing a SYSTEM CHECK enables the system, which consists of multiple actuators, to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect potential malfunctions in the system. The SYSTEM CHECK can be performed with an intelligent tester.

Connect an intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester ON.
Select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK.

Perform the SYSTEM CHECK by referring to the table below.

SYSTEM CHECK REFERENCE

Intelligent Tester Displays	Test Details	Recommended Fuel Temperatures	Diagnostic Notes
EVAP SYS CHECK (AUTO OPERATION)	Perform 4 steps in order to operate EVAP key-off monitor automatically	35°C (95°F) or less	If no DTCs in PENDING CODE after performing this test, system functioning normally Refer to EVAP SYSTEM
EVAP SYS CHECK (MANUAL OPERATION)	Perform 4 steps in order to operate EVAP key-off monitor manually	35°C (95°F) or less	Used to detect malfunctioning parts Refer to EVAP SYSTEM