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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 P0217: Engine Coolant OVERTEMPERATURE Enrichment Protection >> DTC Confirmation Test (Overall Function Check)

DTC Confirmation Test (Overall Function Check)

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.
  1. To check overall function of cooling system, allow engine to cool. Check coolant level in reservoir tank and radiator. If coolant level is low, go to DIAGNOSTIC PROCEDURE  . If coolant level is okay, go to next step.
  2. Check coolant mixture ratio. If coolant mixture ratio is not 45-55 percent, change coolant. Start engine and run until air is purged from system. Ensure A/C is turned off and compressor is not operating. If compressor is operating, repair A/C system. See appropriate MANUAL or AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING. If compressor is not operating, go to next step.
  3. Warm engine to normal operating temperature. Grasp radiator hoses to ensure coolant is flowing. If coolant is not flowing, go to DIAGNOSTIC PROCEDURE  . If coolant is flowing, check for blocked radiator air passage. If problem is found, repair as necessary and go to next step.
  4. Check operation of ECT sensor. See step  4 under DIAGNOSTIC PROCEDURE. If problem is found, repair as necessary. If ECT sensor is okay, check ignition timing. See THROTTLE POSITION SWITCH, IGNITION TIMING & IGNITION SYSTEM in ON-VEHICLE ADJUSTMENTS article. Adjust, if necessary and retest.
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