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Home >> Nissan-Datsun >> 2003 >> Sentra GXE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics (QG18DE) >> Diagnostic Tests >> DTC P0453: EVAP Control System Pressure Sensor High Input >> DTC Confirmation Test

DTC Confirmation Test

NOTE: If DTC confirmation test has been previously performed, always turn ignition off and wait at least 10 seconds before performing the next test.
NOTE: Before proceeding, ensure ambient temperature is more than 41°F (5°C).

With CONSULT-II

  1. Start engine and warm to normal operating temperature. Turn ignition off and wait at least 10 seconds. Turn ignition on. Select DATA MONITOR mode with CONSULT-II. Ensure FUEL T/TEMP SE is more than 32°F (0°C).
  2. Start engine and wait at least 20 seconds. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE. If 1st trip DTC is not detected, system is okay at this time.
CAUTION: DO NOT use ECM ground terminals when measuring voltage.

With Generic Scan Tool

  1. Start engine and warm to normal operating temperature. Measure voltage between ground and ECM terminal No. 107 (fuel tank temperature sensor signal circuit) by backprobing. Ensure voltage is less than 4.2 volts. See Figure.
  2. Turn ignition off and wait at least 10 seconds. Start engine and wait at least 20 seconds. Select MODE 7 with scan tool. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE. If 1st trip DTC is not detected, system is okay at this time.
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