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Home >> Nissan-Datsun >> 2009 >> Cube Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B2603: Shift Position Status >> Diagnosis Procedure
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Diagnosis Procedure

  1. INSPECTION START

    Perform inspection in accordance with procedure that confirms DTC.

    Which procedure confirms DTC? 

    DTC confirmation procedure 1: GO TO 2.

    DTC confirmation procedure 2: GO TO  7.

  2. CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY
    1. Turn ignition switch OFF.
    2. Disconnect transmission range switch connector.
    3. Turn ignition switch ON.
    4. Check voltage between transmission range switch harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Voltage (V) (Approx.)
    Transmission range switch
    Connector Terminal
    F21 1 Ground Battery voltage

    Is the inspection result normal? 

    YES: GO TO  4.

    NO: GO TO 3.

  3. CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector.
    3. Check continuity between transmission range switch harness connector and IPDM E/R harness connector.
      CONTINUITY SPECIFICATION

      Transmission range switch IPDM E/R Continuity
      Connector Terminal Connector Terminal
      F21 1 E15 59 Existed
    4. Check continuity between transmission range switch harness connector and ground.
    CONTINUITY SPECIFICATION

    A/T assembly Ground Continuity
    Connector Terminal
    F21 1 Not existed

    Is the inspection result normal? 

    YES: Check 10 A fuse (No. 56, located in the IPDM E/R).

    NO: Repair or replace harness.

  4. CHECK BCM INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Connect transmission range switch connector.
    3. Turn ignition switch ON.
    4. Check voltage between BCM harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Condition Voltage (V) (Approx.)
    BCM
    Connector Terminal
    M71 102 Ground Selector lever P or N position Battery voltage
    Other than above 0

    Is the inspection result normal? 

    YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

    NO: GO TO 5.

  5. CHECK BCM INPUT SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect transmission range switch connector.
    3. Check continuity between transmission range switch harness connector and BCM harness connector.
      CONTINUITY SPECIFICATION

      Transmission range switch BCM Continuity
      Connector Terminal Connector Terminal
      F21 2 M71 102 Existed
    4. Check continuity between transmission range switch harness connector and ground.
      CONTINUITY SPECIFICATION

      Transmission range switch Ground Continuity
      Connector Terminal
      F21 2 Not existed

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Repair or replace harness.

  6. CHECK TRANSMISSION RANGE SWITCH

    Refer to "COMPONENT INSPECTION (TRANSMISSION RANGE SWITCH) ".

    Is the inspection result normal? 

    YES: GO TO  12.

    NO: Replace transaxle assembly. Refer to "EXPLODED VIEW ".

  7. CHECK CVT SHIFT SELECTOR POWER SUPPLY
    1. Turn ignition switch OFF.
    2. Disconnect CVT shift selector (detention switch) connector.
    3. Check voltage between CVT shift selector (detention switch) harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Voltage (V) (Approx.)
    CVT shift selector (detention switch)
    Connector Terminal
    M58 7 Ground 12

    Is the inspection result normal? 

    YES: GO TO  9.

    NO: GO TO 8.

  8. CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between CVT shift selector (detention switch) harness connector and BCM harness connector.
      CONTINUITY SPECIFICATION

      CVT shift selector (detention switch) BCM Continuity
      Connector Terminal Connector Terminal
      M58 7 M71 104 Existed
    3. Check continuity between CVT shift selector (detention switch) harness connector and ground.
    CONTINUITY SPECIFICATION

    CVT shift selector (detention switch) Ground Continuity
    Connector Terminal
    M58 7 Not existed

    Is the inspection result normal? 

    YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness.

  9. CHECK CVT SHIFT SELECTOR CIRCUIT (BCM)
    1. Disconnect BCM connector and IPDM E/R connector.
    2. Check continuity between CVT shift selector (detention switch) harness connector and BCM harness connector.
      CONTINUITY SPECIFICATION

      CVT shift selector (detention switch) BCM Continuity
      Connector Terminal Connector Terminal
      M58 8 M68 37 Existed
    3. Check continuity between CVT shift selector (detention switch) harness connector and ground.
    CONTINUITY SPECIFICATION

    CVT shift selector (detention switch) Ground Continuity
    Connector Terminal
    M58 8 Not existed

    Is the inspection result normal? 

    YES: GO TO 10.

    NO: Repair or replace harness.

  10. CHECK CVT SHIFT SELECTOR CIRCUIT (IPDM E/R)

    Check continuity between CVT shift selector (detention switch) harness connector and IPDM E/R harness connector.

    CONTINUITY SPECIFICATION

    CVT shift selector (detention switch) IPDM E/R Continuity
    Connector Terminal Connector Terminal
    M58 8 E17 64 Existed

    Is the inspection result normal? 

    YES: GO TO 11.

    NO: Repair or replace harness.

  11. CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

    Refer to "COMPONENT INSPECTION [CVT SHIFT SELECTOR (DETENTION SWITCH)] ".

    Is the inspection result normal? 

    YES: GO TO  12.

    NO: Replace CVT shift selector. Refer to "REMOVAL AND INSTALLATION ".

  12. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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