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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1002 (Automatic Transmission (Re0F09B)) >> Component Diagnosis >> Shift Lock System >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SOURCE (STOP LAMP SWITCH)
    1. Turn ignition switch OFF.
    2. Disconnect stop lamp switch connector.
    3. Check voltage between stop lamp switch connector E38 terminal 3 and ground.
    TERMINAL VOLTAGE REFERENCE

    Stop lamp switch Ground Voltage (Approx.)
    Connector Terminal
    E38 3 Battery voltage

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Check the following:

    • Harness for short or open between fuse block (J/B) and stop lamp switch
    • 10A fuse (No. 7, located in fuse block [J/B])
    Fig 1: Checking Voltage Between Stop Lamp Switch Connector E38 Terminal 3 And Ground
    G04889078Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK STOP LAMP SWITCH

    Check stop lamp switch. Refer to "COMPONENT INSPECTION (STOP LAMP SWITCH) ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Replace stop lamp switch. Refer to "EXPLODED VIEW ".

  3. CHECK GROUND CIRCUIT (SHIFT LOCK RELAY)
    1. Remove shift lock relay.
    2. Check continuity between shift lock relay connector E27 terminal 1 and ground.
    TERMINAL CONTINUITY REFERENCE

    Shift lock relay Ground Continuity
    Connector Terminal (+)
    E27 1 Yes

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace damaged parts.

    Fig 2: Checking Continuity Between Shift Lock Relay Connector E27 Terminal 1 And Ground
    G05875794Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND STOP LAMP SWITCH FOR OPEN

    Check continuity between shift lock relay connector E27 (A) terminal 2 and stop lamp switch connector E38 (B) terminal 4.

    TERMINAL CONTINUITY REFERENCE

    Shift lock relay stop lamp switch Continuity
    Connector Terminal Connector Terminal
    E27 (A) 2 E38 (B) 4 Yes

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Repair or replace damaged parts.

    Fig 3: Checking Continuity Between Shift Lock Relay And Stop Lamp Switch Connector Terminals
    G05875795Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND STOP LAMP SWITCH FOR SHORT CIRCUIT

    Check continuity between shift lock relay connector E27 terminal 2 and ground.

    TERMINAL CONTINUITY REFERENCE

    Shift lock relay Ground Continuity
    Connector Terminal
    E27 2 No

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Repair or replace damaged parts.

    Fig 4: Checking Continuity Between Shift Lock Relay Connector E27 Terminal 2 And Ground
    G05875796Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK POWER SOURCE (SHIFT LOCK RELAY)
    1. Turn ignition switch ON.
    2. Check voltage between shift lock relay connector E27 terminal 5 and ground.
    TERMINAL VOLTAGE REFERENCE

    Shift lock relay Ground Voltage (Approx.)
    Connector Terminal
    E27 5 Battery voltage

    Is the inspection result normal? 

    YES: GO TO 9.

    NO: GO TO 7.

    Fig 5: Checking Voltage Between Shift Lock Relay Connector E27 Terminal 5 And Ground
    G05875797Courtesy of NISSAN MOTOR CO., U.S.A.
  7. CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND SHIFT LOCK RELAY FOR OPEN
    1. Disconnect fuse block (J/B).
    2. Check continuity between fuse block (J/B) connector E6 (A) terminal 4P and shift lock relay connector E27 (B) terminal 5.
    TERMINAL CONTINUITY REFERENCE

    Fuse block (J/B) Shift lock relay Continuity
    Connector Terminal Connector Terminal
    E6 (A) 4P E27 (B) 5 Yes

    Is the inspection result normal? 

    YES: GO TO 8.

    NO: Repair or replace damaged parts.

    Fig 6: Checking Continuity Between Fuse Block (J/B) And Shift Lock Relay Connector Terminals
    G05875798Courtesy of NISSAN MOTOR CO., U.S.A.
  8. CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND SHIFT LOCK RELAY FOR SHORT CIRCUIT

    Check continuity between shift lock relay connector E27 terminal 5 and ground.

    TERMINAL CONTINUITY REFERENCE

    Shift lock relay Ground Continuity
    Connector Terminal
    E27 5 No

    Is the inspection result normal? 

    YES: GO TO 9.

    NO: Check the following. If NG, repair or replace damaged parts.

    • 10A (No. 3, located in fuse block [J/B])
    • Ignition switch
    Fig 7: Checking Continuity Between Shift Lock Relay Connector E27 Terminal 5 And Ground
    G05875799Courtesy of NISSAN MOTOR CO., U.S.A.
  9. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND CVT DEVICE FOR OPEN
    1. Disconnect CVT device connector.
    2. Check continuity between shift lock relay connector E27 (A) terminal 3 and CVT device connector M78 (B) terminal 6.
    TERMINAL CONTINUITY REFERENCE

    Shift lock relay CVT device Continuity
    Connector Terminal Connector Terminal
    E27 (A) 3 M78 (B) 6 Yes

    Is the inspection result normal? 

    YES: GO TO 10.

    NO: Repair or replace damaged parts.

    Fig 8: Checking Continuity Between Shift Lock Relay And CVT Device Connector Terminals
    G05875800Courtesy of NISSAN MOTOR CO., U.S.A.
  10. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND CVT DEVICE FOR SHORT CIRCUIT

    Check continuity between shift lock relay connector E27 terminal 3 and ground.

    TERMINAL CONTINUITY REFERENCE

    Shift lock relay Ground Continuity
    Connector Terminal
    E27 3 No

    Is the inspection result normal? 

    YES: GO TO 11.

    NO: Repair or replace damaged parts.

    Fig 9: Checking Continuity Between Shift Lock Relay Connector E27 Terminal 3 And Ground
    G05875801Courtesy of NISSAN MOTOR CO., U.S.A.
  11. CHECK SHIFT LOCK RELAY

    Check shift lock relay. Refer to "COMPONENT INSPECTION (SHIFT LOCK RELAY) ".

    Is the inspection result normal? 

    YES: GO TO 12.

    NO: Replace shift lock relay.

  12. CHECK GROUND CIRCUIT (CVT DEVICE)

    Check continuity between CVT device connector M78 terminal 7 and ground.

    TERMINAL CONTINUITY REFERENCE

    CVT device Ground Continuity
    Connector Terminal
    M78 7 Yes

    Is the inspection result normal? 

    YES: Replace shift lock solenoid. Refer to "EXPLODED VIEW ".

    NO: Repair or replace damaged parts.

    Fig 10: Checking Continuity Between CVT Device Connector M78 Terminal 7 And Ground
    G05866026Courtesy of NISSAN MOTOR CO., U.S.A.
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