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Home >> Nissan-Datsun >> 2008 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0448 To P0850 >> DTC P0850 PNP Switch >> DTC Confirmation Procedure
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DTC Confirmation Procedure

CAUTION: Always drive vehicle at a safe speed.
NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next step.
  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

WITH CONSULT-III 

  1. Turn ignition switch ON.
  2. Select "P/N POSI SW" in "DATA MONITOR" mode with CONSULT-III. Then check the "P/N POSI SW" signal under the following conditions.
    DTC CONFIRMATION PROCEDURE

    Position (Shift lever) Known-good signal
    N and P position ON
    Except the above position OFF

    If NG, go to "DIAGNOSTIC PROCEDURE ."

    If OK, go to following step.

  3. Select "DATA MONITOR" mode with CONSULT-III.
  4. Start engine and warm it up to normal operating temperature.
  5. Maintain the following conditions for at least 60 consecutive seconds.
    COOLANT TEMPERATURE SPECIFICATION

    ENG SPEED 1, 400 - 6, 375 rpm
    COOLAN TEMP/S More than 70°C (158°F)
    B/FUEL SCHDL 2.0 - 31.8 msec
    VHCL SPEED SE More than 64 km/h (40 MPH)
    Shift lever Suitable position
  6. Check 1st trip DTC.
  7. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE "