Mode 1
Mode 1
The following PID's are supported in Mode 1:
$00 Supported PID's
The PID's supported in this mode are displayed in a 4- byte word (Data A, B, C and D).
Data A
Data B
Data C
Data D
0 - PID number not supported.
1 - PID number supported.
$01 Status of diagnostic system
The system status is displayed in a 4-byte word (Data A, B, C and D).
Mode 41Pid$01 Adr$17
Engine management
No. of faults: 1
MIL commanded ON
- Number of faults stored in this control module.
- Status of Check Engine Malfunction Indicator Light (MIL).
NOTE:
- When several control modules are involved, the status of the Check Engine MIL allows the user to determine which control module was responsible for the MIL being switched on.
- These data can also be designated as Data A and displayed as follows:
Data A
Bits 0 to 6
No. of faults in binary format
Bit 7
0 - Check Engine MIL was not switched on by this control module.
1 - Check Engine MIL was switched on by this control module.
Data B: 00000111
C: 01101101
D: 01101101
Data B
Data byte B displays all the sub-systems which are monitored continuously, i.e. at least twice per second.
Bit 0 - Misfire detection
Bit 1 - Fuel system
Bit 2 - Other components
Bit 3 - Not used
Bit 4 - Not used
Bit 5 - Not used
Bit 6 - Not used
Bit 7 - Not used
0 - System not supported.
1 - System supported.
Data C
Data byte C displays the sub-systems which are monitored at least once per trip.
Bit 0 - TWC
Bit 1 - TWC heating
Bit 2 - Fuel tank ventilation
Bit 3 - Secondary air system
Bit 4 - A/C system
Bit 5 - Oxygen sensor
Bit 6 - Oxygen sensor heating
Bit 7 - Exhaust gas circulation
0 - Sub-system not available.
1 - Sub-system available.
Data D
In data byte D, the readiness codes of the sub-systems from data byte C are displayed.
Bits 0 to 7
o - Sub-system check OK or sub-system not installed.
1 - Sub-system check not yet complete.
NOTE: After the fault memory has been erased, the bits of the installed sub-systems are set to 1. The bits are reset to 0 when the diagnostic routines are successfully performed during two trips.
$03 Status of injection system
Mode 41Pid$03 Adr$17
Data A Data B
00000010 00000010
Data A - Status of bank 1
Data B - Status of bank 2
Bit 0 - Open-loop control, the conditions for closed- loop oxygen sensing have not yet been satisfied.
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 through faults in the 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
Mode 41Pid$04 Adr$17
calc. load value 6.2%
Display between 0% and 100%.
$05 cylinder head temperature
Mode 41Pid$05 Adr$17
Temperature 27 °C
Display between -40 °C and 215 °C.
$06 HO2S integrator, bank 1
Mode 41Pid$06 Adr$17
HO2S integrator B1 0.0%
Display lean to -100% rich to 99.22%
$07 HO2S adaption, bank 1
Mode 41Pid$07 Adr$17
HO2S adapt. B1 0.0%
Display lean to -100% rich to 99.22%
$08 HO2S integrator, bank 2
Mode 41Pid$08 Adr$17
HO2S integrator B2 0.0%
Display lean to -100% rich to99.22%
$09 HO2S adaptation, bank 2
Mode 41Pid$09 Adr$17
HO2S adapt. B2 0.7%
Display lean to -100% rich to 99.22%
$0C Engine speed
Mode 41Pid$0C Adr$17
Engine speed 800 rpm
Display engine speed in rpm
$0D Vehicle speed
Mode 41Pid$0D Adr$17
Vehicle speed 0 km/h
Display of vehicle speed in km/h up to max. 255 km/h (159 mph).
$0E Ignition timing, cylinder 1
Mode 41Pid$0E Adr$17
Ignition angle 23.5 °C
Display after TDC up to -64 °CA before TDC up to 63.5 °CA
°CA - degrees crank angle
$0F Intake air temperature
Mode 41Pid$0F Adr$17
Intake air temp 32 °C
Display between -40 °C and 215 °C
$10 Air mass
Mode 41Pid$10 Adr$17
Air mass 27.76 g/s
Display between 0 and 655.35 g/s
g/s - Gram per second
$11 throttle valve position
Mode 41Pid$11 Adr$17
Throttle v. pos. 0.0%
$12 Status of secondary air system
Mode 41Pid$12 Adr$17
Sec. air start.
00000100
Bit 0 - Secondary air is injected above the first TWC.
Bit 1 - Secondary air is injected below the first TWC junction.
Bit 2 - Secondary air pump is switched off.
Bits 3 to 7 not used.
NOTE: Only one bit at a time can be set to 1 to indicate the status.
$13 Number of oxygen sensors
Mode 41Pid$13 Adr$17
00110011
Bit 0 - Bank 1, sensor 1
Bit 1 - Bank 1, sensor 2
Bit 2 - Bank 1, sensor 3
Bit 3 - Bank 1, sensor 4
Bit 4 - Bank 2, sensor 1
Bit 5 - Bank 2, sensor 2
Bit 6 - Bank 2, sensor 3
Bit 7 - Bank 2, sensor 4
0 - Sensor not available.
1 - Sensor available.
$14 Oxygen sensor signal, bank 1, sensor 1
Mode 41Pid$14 Adr$17
B1 - S1 0.44 V 0%
Display of oxygen sensor voltage and associated oxygen sensor.
Display of sensor voltage between 0 V and 1.275 V and of the oxygen sensor in percent.
Display: lean to - 100% rich to 99.22%
$15 Oxygen sensor signal, bank 1, sensor 2
Mode 41Pid$15 Adr$17
B1 - S2 0.43 V 99%
Display of oxygen sensor voltage and associated oxygen sensor.
Display of sensor voltage between 0 V and 1.275 V and of the oxygen sensor in percent.
Display: lean to - 100% rich to 99.22%
$18 Oxygen sensor signal, bank 2, sensor 1
Mode 41Pid$18 Adr$17
B2 - S1 0.43 V 0%
Display of oxygen sensor voltage and associated oxygen sensor.
Display of sensor voltage between 0 V and 1.275 V and of the oxygen sensor in percent.
Display: lean to - 100% rich to 99.22%
$19 Oxygen sensor signal, bank 2, sensor 2
Mode 41Pid$19 Adr$17
B2 - S2 0.43 V 99%
Display of oxygen sensor voltage and associated oxygen sensor.
Display of sensor voltage between 0 V and 1.275 V and of the oxygen sensor in percent.
Display: lean to - 100% rich to 99.22%
$1C OBD requirements
Mode 41Pid$1C Adr$17
01
Display of system classification.
01 - OBD II for California
02 - OBD for EPA
03 - OBD II for California and EPA
04 - OBD I
O5 - Does not comply with any OBD requirements