Mode
(hex)
|
PID
(hex)
|
Data bytes returned
|
Description
|
Min value
|
Max value
|
Units
|
Formula
|
01
|
00
|
4
|
PIDs supported
|
|
|
|
Bit
encoded [A7..D0]
== [PID 0x01..PID
0x20]
|
01
|
01
|
4
|
Number
of trouble codes and I/M info
|
|
|
|
Bit
encoded.
|
01
|
03
|
2
|
Fuel
system status
|
|
|
|
Bit
encoded.
|
01
|
04
|
1
|
Calculated
engine load value
|
0
|
100
|
%
|
A*100/255
|
01
|
05
|
1
|
Engine
coolant temperature
|
-40
|
215
|
°C
|
A-40
|
01
|
06
|
1
|
Short
term fuel % trim—Bank 1
|
-100
(lean)
|
99.22
(rich)
|
%
|
0.7812
* (A-128)
|
01
|
07
|
1
|
Long
term fuel % trim—Bank 1
|
-100
(lean)
|
99.22
(rich)
|
%
|
0.7812
* (A-128)
|
01
|
08
|
1
|
Short
term fuel % trim—Bank 2
|
-100
(lean)
|
99.22
(rich)
|
%
|
0.7812
* (A-128)
|
01
|
09
|
1
|
Long
term fuel % trim—Bank 2
|
-100
(lean)
|
99.22
(rich)
|
%
|
0.7812
* (A-128)
|
01
|
0A
|
1
|
Fuel
pressure
|
0
|
765
|
KPa (gauge)
|
A*3
|
01
|
0B
|
1
|
Intake
manifold pressure
|
0
|
255
|
KPa (absolute)
|
A
|
01
|
0C
|
2
|
Engine
RPM
|
0
|
16,383.75
|
Rpm
|
((A*256)+B)/4
|
01
|
0D
|
1
|
Vehicle
speed
|
0
|
255
|
km/h
|
A
|
01
|
0E
|
1
|
Timing
advance
|
-64
|
63.5
|
°
relative to #1 cylinder
|
A/2
– 64
|
01
|
0F
|
1
|
Intake
air temperature
|
-40
|
215
|
°C
|
A-40
|
01
|
10
|
2
|
MAF air
flow rate
|
0
|
655.35
|
g/s
|
((256*A)+B)
/ 100
|
01
|
11
|
1
|
Throttle
position
|
0
|
100
|
%
|
A*100/255
|
01
|
12
|
1
|
Sec.(?)
air status
|
|
|
|
Bit
encoded.
|
01
|
13
|
1
|
Oxygen
sensors present
|
|
|
|
[A0..A3] == Bank 1, Sensors 1-4. [A4..A7]
== Bank 2...
|
01
|
14
|
2
|
Bank
1, Sensor 1:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
15
|
2
|
Bank
1, Sensor 2:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
16
|
2
|
Bank
1, Sensor 3:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
17
|
2
|
Bank
1, Sensor 4:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
18
|
2
|
Bank
2, Sensor 1:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
19
|
2
|
Bank
2, Sensor 2:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
1A
|
2
|
Bank
2, Sensor 3:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
1B
|
2
|
Bank
2, Sensor 4:
Oxygen sensor voltage,
Short term fuel trim
|
0
0
|
1.275
99.2
|
Volts
%
|
A
* 0.005
(B-128) * 0.7812 (if B==0xFF, sensor is
not used in trim calc)
|
01
|
1C
|
1
|
OBD standards
this vehicle conforms to
|
|
|
|
Bit
encoded. See below.
|
01
|
1D
|
1
|
Oxygen
sensors present
|
|
|
|
Similar
to PID 13, but
[A0..A7] == [B1S1,
B1S2, B2S1, B2S2, B3S1, B3S2, B4S1, B4S2]
|
01
|
1E
|
1
|
Auxiliary
input status
|
|
|
|
A0
== Power Take Off (PTO) status (1 == active)
[A1..A7] not used
|
01
|
1F
|
2
|
Run
time since engine start
|
0
|
65,535
|
seconds
|
(A*256)+B
|
01
|
20
|
4
|
PIDs supported
21-40
|
|
|
|
Bit
encoded [A7..D0]
== [PID 0x21..PID
0x40]
|
01
|
21
|
2
|
Distance
traveled with MIL on
|
0
|
65,535
|
km
|
(A*256)+B
|
01
|
22
|
2
|
Fuel
Rail Pressure (relative to manifold vacuum)
|
