Service & Repair Manual

24-105
Checking oxygen sensor control behind
catalytic converter
- Perform a test drive of approx. 10 minutes.
WARNING!
Observe safety precautions to reduce the risk
of accidents during road test Page 24-1 .
- Let engine continue to run at idle.
Basic Setting Q
Input displa
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roup number XXX
When indicated on display:
- Press buttons -0-, -3- and -7- to select "display group number 037" and
press -Q- button to confirm input.
System in Basic Setting 37
1 2 3 4
When indicated on display:
- Check oxygen sensor voltage in display field 2.
- Check dwell time between oxygen sensor 1 before catalytic converter
and oxygen sensor 2 behind catalytic converter in display field 3 and
diagnostic result in display field 4.
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