LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1175 (Automatic Transaxle - Re4F04B) >> DTC P0745: Line Pressure Solenoid Valve >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK VALVE RESISTANCE 
    1. Turn ignition switch to OFF position.
    2. Disconnect terminal cord assembly connector in engine compartment.
    3. Check resistance between terminal cord assembly connector F30 terminal 4 and ground.
    Fig 1: Checking Valve Resistance
    G00901682Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  3.
    2. NG: GO TO 2.
  2. CHECK VALVE OPERATION 
    1. Remove control valve assembly. Refer to "REMOVAL ".
    2. Check the following items:
    • Line pressure solenoid valve
      • Check solenoid valve by listening for its operating sound while applying battery voltage and ground to the solenoid.
      Fig 2: Checking Valve Operation
      G00901683Courtesy of NISSAN MOTOR CO., U.S.A.
    • Harness of terminal cord assembly for short or open

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Repair or replace damaged parts.
  3. CHECK POWER SOURCE AND DROPPING RESISTOR CIRCUIT 
    1. Turn ignition switch to OFF position.
    2. Disconnect TCM harness connector.
    3. Check resistance between terminal cord assembly harness connector F30 terminal 4 and TCM harness connector F56 terminal 2.
      1. Resistance: Approximately 12Ω 
    Fig 3: Checking Power Source And Dropping Resistor Circuit
    G00901684Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  5.
    2. NG: GO TO 4.
  4. DETECT MALFUNCTIONING ITEM 

    Check the following items:

    • Dropping resistor
    • Check resistance between two terminals.
      1. Resistance: Approximately 12Ω 
    • Harness for short or open between TCM terminal 2 and terminal cord assembly (Main harness)

    OK or NG 

    1. OK: GO TO 5.
    2. NG: Repair or replace damaged parts.
    Fig 4: Checking Resistance Between Two Terminals Of Dropping Resistor
    G00901685Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK POWER SOURCE CIRCUIT 
    1. Turn ignition switch to OFF position.
    2. Check continuity between terminal cord assembly connector F30 terminal 4 and TCM harness connector F56 terminal 1. Refer to "WIRING DIAGRAM - AT - LPSV".
      1. Continuity should exist. 
    3. Reinstall any part removed.

    OK or NG 

    1. OK: GO TO 6.
    2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
  6. CHECK DTC 

    Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE ".

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 7.
  7. CHECK TCM INSPECTION 
    1. perform TCM input/output signal inspection.
    2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: Repair or replace damaged parts.
scientia non olet · About LEMON Manuals