Sending Diagnostic Data - Mazda 3 2007 Service Highlights

Sending Diagnostic Data

PID data monitor
• The PID data monitor items are shown below.
PID data monitor table
Fuel system loop status
LOAD
ECT
Short term fuel trim
Long term fuel trim
MAP
Engine speed
Vehicle speed
Spark advance
IAT
MAF
Absolute TP
O2S location
Input voltage from rear HO2S
Short term fuel trim associated with rear HO2S
OBD requirement according to vehicle design
Time since engine start
Distance travelled while MIL is activated
EGR valve control signal
Purge solenoid valve control signal
Fuel level
Number of warm-ups since DTCs cleared
Distance travelled since DTCs cleared
Barometric pressure
Lambda
Front HO2S output current
Estimated catalyst converter temperature
PCM voltage
Absolute load value
Theoretical air/fuel ratio coefficient to calculate target air/fuel ratio
Relative TP
Ambient air temperature
TP from TP sensor No.2
APP from APP sensor No.1
APP from APP sensor No.2
Throttle actuator control signal
Meaning of fuel system loop status
• The following information is displayed on the tester.
— Feedback stops: ECT is lower than the determined feedback zone.
— Feedback operating: HO2S being used for feedback is normal.
— Feedback stops: Open loop due to driving condition
— Feedback stops: Open loop due to detected system fault
— Feedback operating: Malfunction occurred in HO2S (rear) system
01-02–2
ON-BOARD DIAGNOSTIC [LF]
Full names Unit
Refer to list below.
%
°C °F
%
%
kPa
rpm
km/h mph
°
°C °F
g/s
%
No unit
V
%
No unit
s
km miles
%
%
%
No unit
km miles
kPa
—
mA
°C °F
V
%
No unit
%
°C °F
%
%
%
%