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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1056 (Automatic Transaxle Overhaul & Diagnostics) >> Re4F04B >> A/T Shift Lock System >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM 1: 

SYMPTOM 2: 

  1. CHECK KEY INTERLOCK CABLE 

    Check the key interlock cable for damage.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Repair key interlock cable. Refer to "KEY INTERLOCK CABLE ".
  2. SELECTOR LEVER POSITION 

    Check the selector lever position for damage.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Check selector lever. Refer to "CONTROL CABLE ADJUSTMENT ".
  3. SHIFT LOCK SOLENOID AND PARK POSITION SWITCH 
    1. Connect A/T device harness connector.
    2. Turn ignition switch "ON".
    3. Selector lever is set in "P" position.
    4. Check operation sound.
      Fig 1: Shift Lock Solenoid And Park Position Switch Inspection Chart
      G00741205Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 4.
  4. POWER SOURCE 
    1. Turn ignition switch "ON". (Do not start engine.)
    2. Check the voltage between A/T device harness connector M34 terminal 5 (R) and ground.
      Fig 2: Ignition Switch Condition/Voltage Chart
      G00741206Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  7.
    2. NG: GO TO 5.
    Fig 3: Checking Voltage Between A/T Device Harness Connector M34 Terminal 5 (R) And Ground
    G00741207Courtesy of NISSAN MOTOR CO., U.S.A.
  5. STOP LAMP SWITCH 
    1. Turn ignition switch "OFF".
    2. Disconnect stop lamp switch harness connector.
    3. Check continuity between stop lamp switch harness connector E38 terminals 3 and 4.
      Fig 4: Stop Lamp Switch Continuity Chart
      G00741208Courtesy of NISSAN MOTOR CO., U.S.A.

    Check stop lamp switch after adjusting brake pedal -- refer to  ADJUSTMENTS  "  .

    OK or NG 

    1. OK: GO TO 6.
    2. NG: Repair or replace damaged parts.
    Fig 5: Checking Stop Lamp Switch Continuity
    G00741209Courtesy of NISSAN MOTOR CO., U.S.A.
  6. MALFUNCTIONING ITEM 

    Check the following items. If any items are damaged, repair or replace damaged parts.

    • 10A fuse [No. 1, located in the fuse block (J/B)]
    • Harness for short or open between ignition switch and stop lamp switch harness connector E38 terminal 3 (R/W)
    • Harness for short or open between stop lamp switch harness connector E38 terminal 4 (L) and diode-4 harness connector E149 terminal 2 (L).
    • Harness for short or open between diode-4 harness connector E149 terminal 1 (R) and A/T device harness connector M34 terminal 5 (R).
    • Diode-4
    • Ignition switch (Refer to "POWER DISTRIBUTION ".)

    OK or NG 

    1. OK: GO TO 7.
    2. NG: Repair or replace damaged parts.
  7. GROUND CIRCUIT 
  1. Turn ignition switch "OFF".
  2. Disconnect A/T device harness connector.
  3. Check continuity between A/T device harness connector M34 terminal 6 (B) and ground.

    Continuity should exist  .

  4. Connect A/T device harness connector.

OK or NG 

  1. OK: Replace shift lock solenoid or park position switch.
  2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
Fig 6: Checking Continuity Between A/T Device Harness Connector M34 Terminal 6 (B) And Ground
G00741210Courtesy of NISSAN MOTOR CO., U.S.A.