ME 7.8

Mode 2

In mode 2 the operating conditions (freeze frame data) at the time of fault entry are displayed. The operating conditions of the fault which occurred first are stored.
If a fuel system fault or misfiring fault occurs after this, the data of the fault which occurred first are overwritten.

The following PIDs are supported:

$00 Supported PIDs

The PIDs supported in this mode are displayed in a 4-byte word.

Data A:

Data B:

Data C:

Data D:

NOTE: The Data A and B bytes indicate that PIDs 02, 03, 04, 05, 06, 07, 08, 09, OC and OD are supported.


$02 Diagnostic Trouble Code

The Diagnostic Trouble Code which caused the storage of freeze frame data is displayed.

$03 Status of injection system

Data A: 0000 1000
B: 0000 1000

Data A - Status for bank 1
Data B - Status for bank 2







Bit 0 Open-loop control; the conditions for oxygen sensing are not yet fulfilled.
Bit 1 Closed-loop control; the signal from the oxygen sensor is used to control injection.
Bit 2 Open-loop control through conditions such as full load, etc.
Bit 3 Open-loop control due to fault in system.
Bit 4 Closed-loop control, but faults from at least one oxygen sensor.
Bits 5 to 7 not used.



NOTE: Only one bit at a time can be set to 1 to indicate the status.


$04 Calculated load value

Output of calculated load as a percentage of the maximum load.
Display between 0% and 100%.

$05 Engine coolant temperature

Output of the engine coolant temperature.
Display between - 40 °C and 215 °C.

$06 HO2S integrator, bank 1

Output of the control value FR of the oxygen sensor closed-loop control, bank 1.

Display: Lean to - 100 %
Rich to 99.22%

$07 HO2S adaptation, bank 1

Output of the adaptation value FRA of the oxygen sensor closed- loop control, bank 1.

Display: Lean to - 100 %
Rich to 99.22 %

$08 HO2S integrator, bank 2

Output of the control value FR of the oxygen sensor closed-loop control, bank 2.

Display: Lean to - 100 %
Rich to 99.22 %

$09 HO2S adaptation, bank 2

Output of the adaptation value FRA of the oxygen sensor closed-loop control, bank 2.

Display: Lean to - 100 %
Rich to 99.22 %

$0B Intake manifold pressure (absolute)

Output of the intake manifold pressure.
Display: 0 kPa to 255 kPa

$0C Engine speed

Output of the engine speed.
Display in rpm

$0D Vehicle speed

Output of the speed.