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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0181: Fuel Tank Temperature Sensor Circuit Range/Performance >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel pump assembly. Access cover is located under rear seat. Measure resistance between fuel pump assembly connector terminals No. 4 and 5, with FTT sensor submerged in heated water. See Fig 1 . Resistance should be within acceptable range shown in illustration. See Figure . If resistance is as specified, go to next step. If resistance is not as specified, replace FTT sensor.
  2. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
Fig 1: Testing FTT Sensor
G00103799Courtesy of NISSAN MOTOR CO., U.S.A.
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