Work procedure: Notes

Connect diagnostic tester. See Connect diagnostic tester .
Start engine and let run at idle.
In diagnostic function "33 - OBD", select "Mode 5: Check output of oxygen sensor signals".
Via the following table, select the desired output of oxygen sensor signals according to Test ID (Test Identification), e.g. "01: Rich to lean sensor barrier voltage".

Check specified values at idle.

NOTE:

When selecting the diagnostic mode, the entry is always performed in "Bank 1 sensor 1".
If either the V.A.G 1551/1552 Scan Tool (ST) or the VAS5051/5052 Vehicle Diagnostic, Testing and Information System is used for checking the output of oxygen sensor signals, the respective oxygen sensor can be selected by pressing buttons 1 and 2:
- Button 1 = Bank 1 sensor 1,
- Button 2 = Bank 1 sensor 2.

MODE 5 TEST-ID EVALUATION

Test-ID ⁽¹⁾

Diagnostic text

Evaluation

01:

Rich to lean sensor barrier voltage

See EVALUATION TEST-ID 01: RICH TO LEAN SENSOR BARRIER VOLTAGE .

02:

Lean to rich sensor barrier voltage

See Evaluation test-ID 02: Lean to rich sensor barrier voltage .

07:

Minimum voltage at sensor for test cycle

See Evaluation test-ID 07: Minimum voltage at sensor for test cycle .

08:

Maximum voltage at sensor for test cycle

See EVALUATION TEST-ID 08: MAXIMUM VOLTAGE AT SENSOR FOR TEST CYCLE .

129:

Current value of oxygen sensor signal

See EVALUATION TEST-ID 129: CURRENT VALUE OF OXYGEN SENSOR SIGNAL .

130:

Specified value of oxygen sensor signal

See EVALUATION TEST-ID 130: SPECIFIED VALUE OF OXYGEN SENSOR SIGNAL .

131:

Dynamic value

See Evaluation test-ID 131: Dynamic value .

132:

Shift of oxygen sensor regulation before catalytic converter via oxygen sensor regulation behind catalytic converter

See EVALUATION TEST-ID 132: SHIFT OF OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER VIA OXYGEN SENSOR REGULATION BEHIND CATALYTIC CONVERTER .

⁽¹⁾	Test IDs that are not relevant are not listed.

End diagnosis and switch ignition off.