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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1147 Or DTC P1167: Ho2S2 >> DTC Confirmation Test (Using Generic Scan Tool)
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DTC Confirmation Test (Using Generic Scan Tool)

WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the following test to check overall function of HO2S2 circuit. During this test, 1st trip DTC may not be confirmed.
CAUTION: DO NOT use ECM ground terminals when measuring voltage.
  1. Start engine. Drive vehicle at a speed of more than 43 MPH for 2 consecutive minutes. Stop vehicle with engine running.
  2. On 2.5L, measure voltage between ground and ECM terminal No. 95 by backprobing. See Figure and Figure . On 3.5L, measure voltage between ground and ECM terminal No. 88 (bank 1) or No. 90 (bank 2) by backprobing.
  3. On all models, while observing voltmeter, snap throttle to 4000 RPM at least 10 times. Voltage should be more than .63 volt at least once during this procedure.
  4. If voltage is as specified, system is okay at this time. If voltage is not as specified, go to next step.
  5. Let engine idle for 10 minutes, then measure voltage again. Or, measure voltage while coasting from 50 MPH in 3rd gear. If voltage is as specified, system is okay at this time. If voltage is not as specified, go to appropriate DIAGNOSTIC PROCEDURE.
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