Blue point Microscan III Uživatelský manuál stáhnout pdf (Strana 54)

Chapter 7 Data Parameters

Mode $01 and $02 services involve evaluating the vehicle data stream parameter values. This

section provides definitions for the values that display on the viewing screen, along with diagnostic

tips. The information is presented in three ways:

• Long parameter names on page 47—lists parameters by their complete names

• Short parameter names on page 51—lists parameters by their common acronym

• DTC association on page 54—lists parameter names by their corresponding diagnostic

trouble code (DTC)

Depending upon the vehicle being tested and other variables, the screen may display either the

long or short parameter names on the data list. The numeric definitions are based on the last three

characters of the diagnostic trouble code. Refer to Service $03: on page 14 for information on

DTC structure.

7.1 Long Parameter Names

Table 7-1 lists data parameter definitions alphabetically by their complete name. The long name

displays in a pop-up window when a parameter is selected from a list.

NOTE:

i Counters (like cylinder bank or sensor position) in a parameter name are represented by a ‘y’ or

‘x’ in the table.

The vehicle ECM determines the parameter data list, not all parameters display on every vehicle.

Table 7-1

Long parameter names (sheet 1 of 4)

Parameter Description for long parameter

ABSOLUTE LOAD VALUE

Value is presented as a percentage and ranges from 0 to 100 for

naturally aspirated engines, and from 0 to 400 for boosted engines.

On boosted engines the actual figure displayed is very much

depending on how much boost is used. The higher the boost used, the

higher Absolute Load Value will be.

ABSOLUTE THROTTLE

POSITION–/B/C

Shows the absolute throttle position. The output signal is a proportional

percentage to the input voltage (when proportional) or 100% minus the

proportional percentage (when inversely proportional).

See PID $45 for the relative position.

ACCELERATOR PEDAL

POSITION x

Shows the absolute pedal position. The output signal is a proportional

percentage to the input voltage (when proportional) or 100% minus the

proportional percentage (when inversely proportional).

AIR FLOW RATE

Shows the flow rate of the intake air as measured by the Mass Air Flow

(MAF) sensor.

AMBIENT AIR

TEMPERATURE

Can be obtained from an AAT sensor directly or deducted by the ECM

from other sensor signals.

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