Displaying Engine Data

The type of serial data available depends on the vehicle you are working on. Many Toyota vehicles with OBD, manufactured since 1989, have a serial data stream available on the VF1 terminal of DLC 1 (Check connector) or the ENG terminal of DLC 2 (TDCL).

Vehicles which support a serial data stream can be identified by the presence of a TE2 circuit (see the application matrix on page 86 of this handbook). Depending on the vehicle, there can be as many as 20 different sensor, actuator, and diagnostic data parameters represented on the OBD data stream.

The OBD-II system, which phased in during the 1994 through 1996 model years, has a high speed data stream available on terminal 2 of DLC 3 01962 connector). There are in excess of 50 data parameters represented on the OBD-II engine data stream.

Accessing serial data on any of these vehicles is a simple matter using the Diagnostic Tester.

Typical Serial Data Parameters

There are as many as 20 data parameters on the OBD data stream and more than 50 with Enhanced OBD-II

OBD Data List

INJECTOR 5.8ms

IGNITION 22BCfl

IRC STEP# 53

ENGINE SPD 1825rpn

UAF 1.28U

ECT 194DF

THROTTLE 7"

UEHICLE SPD 45MPH

TARGET IVF L 1.25U

TARGET A/F R 1.25U

A/F FB LEFT ON

KNOCK RETARD ON

A/F FB RIGHT ON

STA SIGNAL OFF

CTP SIGNAL OFF

A/C SIGNAL OFF

OBD-II Data List

1 1

FUEL ^VS #1

OFEN«

FUEL SVS #2

OPEN

CALC LOAD

0.0*

COOLANT TEMP...

82° F

SHORT FT #1

0.0*

LONG FT #1

1.5*

SHORT FT #2

0.0*

LONG FT #2

...-0.8*

ENGINE SPD

76r^niri

UEHICLE SPD

0MPH

IGN ADVANCE

0.0"

INTAKE AIR

79-F

MAF

71b^nin

THROTTLE POS-..

9.4*

02S B1, SI

000'viOlt

02FT B1,SI

0.0*

For 1989 and later models which do not support serial data streams, the Vehicle Break-out Box gives you the ability to create one. By connecting the V-BoB in series with the ECM, information from every wire can be serialized and displayed by the Diagnostic Tester. Although it takes a little bit longer to install the V-BoB, the unlimited amount of high speed data makes the effort well worth the time invested.

Toyota Tdcl
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Do It Yourself Car Diagnosis

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Responses

  • concetta
    What is short ft#1 longft#1 shortft#2 longft#2 on car scanner?
    10 months ago

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