Toyota
Nissan Versa
 Sedan Service Manual
Electrical & power control » LAN System (LAN)
TCM Branch line circuit 

Diagnosis Procedure

1.CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

  • TCM
  • Harness connector F8
  • Harness connector E8

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair the terminal and connector.

2.CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of TCM.

2. Check the resistance between the TCM harness connector terminals.

- CVT models                       

- A/T models                               

Is the measurement value within the specification?

YES >> GO TO 3.

NO >> Repair the TCM branch line.

3.CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the TCM. Refer to the following.

  • CVT models: TM "Diagnosis Procedure"
  • A/T models: TM "Diagnosis Procedure"

Is the inspection result normal?

YES (Present error)>>Replace the TCM. Refer to the following.

  • CVT models: TM "Removal and Installation"
  • A/T models: TM "Removal and Installation"

YES (Past error)>>Error was detected in the TCM branch line.

NO >> Repair the power supply and the ground circuit.

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    Main line between IPDM-E and DLC circuit

    ECM Branch line circuit

    ABS Branch line circuit

    IPDM-E Branch line circuit

    TCM Branch line circuit

    A-BAG Branch line circuit

    DLC Branch line circuit

    EPS Branch line circuit

    M&A Branch line circuit

    STRG Branch line circuit

    BCM Branch line circuit

    CAN Communication circuit

    Main line between IPDM-E and DLC circuit

    ECM Branch line circuit

    ABS Branch line circuit 

    IPDM-E Branch line circuit 

    TCM Branch line circuit 

    A-BAG Branch line circuit

    DLC Branch line circuit 

    EPS Branch line circuit 

    M&A Branch line circuit

    STRG Branch line circuit

    BCM Branch line circuit

    CAN Communication circuit

    Main line between IPDM-E and DLC circuit

    ECM Branch line circuit

    ABS Branch line circuit

    IPDM-E Branch line circuit

    TCM Branch line circuit

    A-BAG Branch line circuit

    AV Branch line circuit

    DLC Branch line circuit

    EPS Branch line circuit

    M&A Branch line circuit

    STRG Branch line circuit

    BCM Branch line circuit

    CAN Communication circuit

    Nissan Versa Sedan Service Manual / Electrical & power control / LAN System (LAN) / TCM Branch line circuit 

    Nissan Versa Sedan Service Manual

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