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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 165 (Brake Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC C1145: Yaw Rate/Side G Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check ABS Actuator And Electric Unit (Control Unit) Power Supply And Ground Circuit 

    Check The ABS Actuator And Electric Unit (Control Unit) Power Supply And Ground Circuits. Refer To Diagnosis Procedure .

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 2  .

    No

    Repair / Replace Harness, Connector, Fuse, Or Fusible Link.

  2. Check Connector 
    1. Turn The Ignition Switch Off.
    2. Check The ABS Actuator And Electric Unit (Control Unit) Harness Connector For Disconnection Or Looseness.
    3. Check The Yaw Rate/Side/Decel G Sensor Harness Connector For Disconnection Or Looseness.

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 4  .

    No

    Repair / replace Harness or Connector, securely lock the Connector, and GO TO STEP 3  .

  3. Perform Self-Diagnosis 

    SYMBOL consult

    1. Turn The Ignition Switch Off.
      NOTE: Wait At Least 10 Seconds After Turning Ignition Switch Off.
    2. Start The Engine.
      NOTE: Wait At Least 10 Seconds After Start The Engine.
    3. Select "Self Diagnostic Result" Of "ABS".

    Is DTC "C1145" Or "C1146" Detected?

    Yes

    GO TO STEP 4  .

    No

    Inspection End.

  4. Check Yaw Rate/Side/Decel G Sensor Power Supply Circuit 
    1. Turn The Ignition Switch Off.
    2. Disconnect ABS Actuator And Electric Unit (Control Unit) Harness Connector.
    3. Disconnect Yaw Rate/Side/Decel G Sensor Harness Connector.
    4. Check The Continuity Between Yaw Rate/Side/Decel G Sensor Harness Connector And IPDM E/R Harness Connector.

      Yaw Rate/Side/Decel G Sensor

      IPDM E/R

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M108

      3

      E119

      15

      Yes

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 5 

    No

    Repair / Replace Harness Or Connector.

  5. Check Yaw Rate/Side/Decel G Sensor Ground Circuit 

    Check The Continuity Between Yaw Rate/Side/Decel G Sensor Harness Connector And ABS Actuator And Electric Unit (Control Unit) Harness Connector.

    Yaw Rate/Side/Decel G Sensor

    -

    Continuity

    Connector

    Terminal

    M108

    6

    Ground

    Yes

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 6 

    No

    Repair / Replace Harness Or Connector.

  6. Check Yaw Rate/Side/Decel G Sensor Signal Circuit 

    Check The Continuity Between Yaw Rate/Side/Decel G Sensor Harness Connector And ABS Actuator And Electric Unit (Control Unit) Harness Connector.

    Yaw Rate/Side/Decel G Sensor

    ABS Actuator And Electric Unit (Control Unit)

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    M108

    4

    E125

    9

    Yes

    5

    10

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 7 

    No

    Repair / Replace Harness Or Connector.

  7. Check Yaw Rate/Side/Decel G Sensor Circuit 

    Check The Continuity Between Each Terminal Of Yaw Rate/Side/Decel G Sensor Harness Connector.

    Yaw Rate/Side/Decel G Sensor

    Continuity

    Connector

    Terminal

    M108

    6 - 5

    No

    6 - 4

    6 - 3

    3 - 4

    3 - 5

    4 - 5

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 8 

    No

    Repair / Replace Harness Or Connector.

  8. Check Yaw Rate/Side/Decel G Sensor (1) 

    SYMBOL consult

    1. Connect Yaw Rate/Side/Decel G Sensor Harness Connector.
    2. Connect ABS Actuator And Electric Unit (Control Unit) Harness Connector.
    3. Turn The Ignition Switch On.
      NOTE: Never Start The Engine.
    4. Select "Data Monitor" Mode Of "ABS", Check "Decel G-Sen".
    5. Move Yaw Rate/Side/Decel G Sensor as shown in the figure below, to check the output before and after moving the sensor.
      GNSJSFIA0098Z-098Courtesy of NISSAN NORTH AMERICA, INC.

      Condition

      Data Monitor

      Horizontal

      Approx. 0 G

      Vertical

      Approx. +1 G

    Is The Inspection Result Normal?

    Yes

    GO TO STEP 9  .

    No

    Replace The Yaw Rate/Side/Decel G Sensor. Refer To Removal And Installation .

  9. Check Yaw Rate/Side/Decel G Sensor (2) 
    1. Turn The Ignition Switch Off.
    2. Connect Following Terminals Using A Test Harness Installed Between Yaw Rate/Side/Decel G Sensor And Harness Connector.

      Yaw Rate/Side/Decel G Sensor

      Harness Connector

      Connector

      Terminal

      3

      M108

      3

      4

      4

      5

      5

      6

      6
    3. Turn The Ignition Switch On.
      NOTE: Never Start The Engine.
    4. Check The Voltage Between Yaw Rate/Side/Decel G Sensor Harness Connector Terminals.
      CAUTION: Never Short Out The Terminals While Measuring Voltages.

      Yaw Rate/Side/Decel G Sensor

      Voltage

      Connector

      Terminal

      M108

      4 - 6

      2.5 - 4.5 V

      5 - 6

      0.5 - 2.5 V

    Is The Inspection Result Normal?

    Yes

    Replace The ABS Actuator And Electric Unit (Control Unit). Refer To Removal And Installation .

    No

    Replace The Yaw Rate/Side/Decel G Sensor. Refer To Removal And Installation .

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