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Home >> Nissan-Datsun >> 2007 >> X-Trail LE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1148 To P2138 >> DTC P1574 ASCD Vehicle Speed Sensor >> Overall Function Check
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Overall Function Check

Use this procedure to check the overall function of the park/neutral position (PNP) switch circuit. During this check, a 1st trip DTC might not be confirmed.

WITH GST 

  1. Turn ignition switch ON.
  2. Check voltage between ECM terminal 102 (PNP switch signal) and body ground under the following conditions.
    VOLTAGE SPECIFICATION

    Condition (Shift lever) Voltage V (Known good data)
    P or N position (A/T)
    Neutral position (M/T)    		 Approx. 0
    Except above position BATTERY VOLTAGE
    (11 - 14V)
    Fig 1: Checking Voltage Between ECM Terminal 102 And Body Ground
    G06152898Courtesy of NISSAN MOTOR CO., U.S.A.
  3. If NG, go to "DIAGNOSTIC PROCEDURE ".
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