Home/Nissan/Altima/Nissan Altima L30 (1997-1999)/Repair manual/Testing & Diagnostics/DTC P0135: FRONT HEATED OXYGEN SENSOR (HO2S) HEATER
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DTC P0135: FRONT HEATED OXYGEN SENSOR (HO2S) HEATER Nissan Altima L30

CAUTIONDO NOT reuse any HO2S that has been dropped from a height of 20" (.5 m) or more onto a hard surface such as concrete.

Note. Using the following diagnostic procedure assumes the presence of a current (hard) DTC or the ability to duplicate the setting of the DTC using described procedures, intermittent recreation procedures or a test drive under conditions stored in freeze frame data. See TESTING PROCEDURE under SELF-DIAGNOSTICS SYSTEM in TESTS W/CODES - INTRODUCTION article. If DTC cannot be duplicated, proceed to TESTS W/O CODES article for diagnosis by symptom.

Note. If using a generic scan tool, perform Overall Function Test more than once to set DTC. Only Nissan's CONSULT scan tool or retrieving DTCs with MIL will confirm a 1st trip DTC for this code.