Operation CHARM: Car repair manuals for everyone.

Mode 5




Data Output With A Scan Tool

The output of data relevant to OBD from the control modules was stipulated by law for the USA. It is described in SAE J 1979.

Data output is subdivided into different modes.

Mode 5
Output of oxygen sensor data.

The values of the last oxygen sensor test carried out (test identification TID) can be read out for every oxygen sensor with its nominal values.

$01 Rich-lean threshold voltage
Programmed fixed value: e.g. 0.430 V.

In the case of decimal output, conversion factor = 0.005

Decimal value displayed multiplied by 0.005 gives the threshold voltage.

$02 Lean-rich threshold voltage
Programmed fixed value: e.g. 0.430 V.

In the case of decimal output, conversion factor = 0.005

Decimal value displayed multiplied by 0.005 gives the threshold voltage.

$07 Minimum voltage of oxygen sensor during the test

Minimum: e.g. 0.000 V.
Maximum: e.g. 0.385 V.
Test value: e.g. 0.180 V.
In the case of decimal output, conversion factor = 0.005

Decimal value displayed multiplied by 0.005 gives the voltage of oxygen sensor.

$08 Maximum voltage of oxygen sensor during the test

Minimum: e.g. 0.480 V.
Maximum: e.g. 0.960 V.
Test value: e.g. 0.855 V.

In the case of decimal output, conversion factor = 0.005

Decimal value displayed multiplied by 0.005 gives the voltage of oxygen sensor.

$09 Time between two transitions

Minimum: e.g. 0.00 s.
Maximum: e.g. 1.52 s
Test value: e.g. 0.40 s

In the case of decimal output, conversion factor = 0.04

Decimal value displayed multiplied by 0.04 gives the time.

$30 Shift in oxygen sensor characteristic towards rich

Minimum: e.g. 0.00 s.
Maximum: e.g. 1.20 s
Test value: e.g. 0.12 s

In the case of decimal output, conversion factor = 0.04

Decimal value displayed multiplied by 0.04 gives the time.

$31 Shift in oxygen sensor characteristic towards lean

Minimum: e.g. 0.00 s.
Maximum: e.g. 1.20 s
Test value: e.g. 0.00 s

In the case of decimal output, conversion factor = 0.04

Decimal value displayed multiplied by 0.04 gives the time.

$32 Averaged period

Minimum: e.g. 0.00 s
Maximum: e.g. 3.00 s
Test value: e.g. 0.40 s

In the case of decimal output, conversion factor = 0.04

Decimal value displayed multiplied by 0.04 gives the time.