Operation CHARM: Car repair manuals for everyone.

Mode 2



The following PID's are supported in mode 2:

$00 Supported PID's
A 4-byte word (Data A, B, C and D) indicates which PID's are supported in this mode.





Data A.





Data B.





Data C.





Data D.

NOTE
- In the event of a fault, not all the supported PID's are stored, but only 6.
- Data bytes A and B indicate that PID's 02, 03, 04, 05, 06, 07, 08, 09, 0C and 0D are supported. In the event of a fault, the six most significant supported PID's are stored.

$02 Trouble code
The trouble code which initiated the storage of the freeze frame data is displayed.





$03 Injection system status.

Mode 42Pid$03 Adr$17.

Data A Data B
00001000 00001000.

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

Bit 0 - open-loop control, conditions for air/fuel control not yet met.
Bit 1 - closed-loop control, oxygen sensor signal used to control injection.
Bit 2 - open-loop control due to conditions such as full load, etc.
Bit 3 - open-loop control due to system faults.
Bit 4 - closed-loop control, but fault signal from at least one oxygen sensor.
Bits 5 to 7 not used.

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

$04 Calculated load value.

Mode 42Pid$04 Adr$17.

Calc. load
1.9%.

The value displayed is between 0 and 100 %.

$05 Cylinder head temperature.

Mode 42Pid$05 Adr$17.

Temperature
93°C.

Value displayed between - 40°C and 215°C.

$06 A/F integrator, bank 1.

Mode 42Pid$06 Adr$17.

O25 integ. B1
0.0%.

Value indicated, lean up to - 100% rich up to 99.22%

$07 A/F adaptation bank 1.

Mode 42Pid$07 Adr$17.

O2S adapt. B1
7.8%.

Value indicated, lean up to - 100% rich up to 99.22%

$08 A/F integrator bank 2.

Mode 42Pid$08 Adr$17.

O2S integr. B2
0.0%.

$09 A/F adaptation bank 2.

Mode 42P1d$09 Adr$17.

O2S adapt. B2
7.8%.

Value indicated, lean up to - 100% rich up to 99.22%

$0C Engine speed.

Mode 42Pid$0C Adr$17.

Rpm
778/min.

Indication in rpm.

$0D Speed.

Mode 42Pid$0D Adr$17.

Speed
50 km/h