Home/Nissan/Altima/Nissan Altima L30 (1997-1999)/Repair manual/Testing & Diagnostics/DTC P0115 OR P0125: ENGINE COOLANT TEMPERATURE (ECT) SENSOR
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DTC P0115 OR P0125: ENGINE COOLANT TEMPERATURE (ECT) SENSOR Nissan Altima L30

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 (see DTC CONFIRMATION), intermittent recreation procedures or a test drive under conditions stored in freeze frame data. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in TESTS W/CODES - INTRODUCTION article. If DTC cannot be duplicated, proceed to TESTS W/O CODES article for diagnosis by symptom.

Note. Perform the following DTC confirmation test. Check for DTC after DTC confirmation test is performed. If DTC is set, follow procedure for testing.