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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Engine Controls Self-Diagnostics - Pathfinder & QX4) >> Diagnostic Tests >> DTC P0133: Bank 1 Heated Oxygen Sensor 1 Circuit - Slow Response Or DTC P0153: Bank 2 Heated Oxygen Sensor 1 Circuit - Slow Response >> DTC Confirmation Test (Using Generic Scan Tool)

DTC Confirmation Test (Using Generic Scan Tool)

WARNING: This page is about a different car, the 2002 Nissan Pathfinder and 2002 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: DO NOT use ECM ground terminals when measuring voltage.
NOTE: Use the following test to check overall function of HO2S 1 circuit. During this test, 1st trip DTC may not be confirmed.
  1. Start engine and warm to normal operating temperature. Backprobing at ECM, measure voltage between ground and ECM terminal No. 63 (bank 1) or No. 62 (bank 2). See Figure .
  2. While observing voltmeter, increase engine speed to 2000 RPM. Voltage should cycle from less than .3 volt to more than .6 volt and back more than 5 times within 10 seconds. If voltage is not as specified, go to DIAGNOSTIC PROCEDURE  . If voltage is as specified, system is okay at this time.
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