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Home >> Nissan-Datsun >> 2012 >> Cube Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (SRS (Supplemental Restraint System)) >> DTC Troubleshooting >> DTC 46-1x: ("X" Can Be 0 Thru 9 Or A Thru F) No Signal From the Right Side Impact Sensor (Second) >> Special Tools Required

Special Tools Required

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NOTE:
  1. Clear the DTCs with the HDS (see CLEAR THE DTC MEMORY ).
  2. Turn the ignition switch to ON (II), then wait for 10 seconds.
  3. Check for the DTCs with the HDS (see READING THE DTC  ).

    Is DTC 46-1x indicated? 

    YES  -

    • If DTC 46-11 is indicated, go to step  4.
    • If DTC 46-1x except 46-11 is indicated alone, faulty right side impact sensor (second); replace the right side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT  ), then clear the DTC.
    • If DTC 44-11 and 46-11 are indicated, faulty right side impact sensor (first); replace the right side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT  ), then clear the DTC.

    NO  - Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES  . If another DTC is indicated, troubleshoot the DTC.

  4. Turn the ignition switch to LOCK (0).
  5. Disconnect the negative cable from the battery, then wait at least 3 minutes.
  6. Disconnect the floor wire harness 4P connector from the right side impact sensor (first) (see SIDE IMPACT SENSOR (FIRST) REPLACEMENT  ).
  7. Disconnect the floor wire harness 2P connector (A) from the right side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT  ).
    Fig 1: Identifying Floor Wire Harness 2P Connector
    G05960540Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Measure the resistance between right side impact sensor (second) 2P connector on the floor wire harness terminals No. 1 and No. 2.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  - Go to step  9.

    NO  - Short to another wire in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

    Fig 2: Measuring Resistance Between Floor Wire Harness 2P Connector Terminals No. 1 & No. 2
    G05960541Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Measure the resistance between body ground and right side impact sensor (second) 2P connector on the floor wire harness terminals No. 1 and No. 2 individually.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  - Go to step  10.

    NO  - Short to ground in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

    Fig 3: Measuring Resistance Between Body Ground & Floor Wire Harness 2P Connector Terminals No. 1 & No. 2
    G05960542Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Reconnect the negative cable to the battery.
  11. Turn the ignition switch to ON (II).
  12. Measure the voltage between body ground and right side impact sensor (second) 2P connector on the floor wire harness terminals No. 1 and No. 2 individually.

    Is there less than 0.2 V? 

    YES  - Go to step  13.

    NO  - Short to power in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

    Fig 4: Measuring Voltage Between Body Ground & Floor Wire Harness 2P Connector Terminals No. 1 & No. 2
    G05960543Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Turn the ignition switch to LOCK (0).
  14. Connect the black terminals (A) of SRS simulator lead L to the SRS inflator simulator (jumper connector), and then connect SRS simulator lead L to the right side impact sensor (first) 4P connector (B) on the floor wire harness.
    Fig 5: Connecting SRS Inflator Simulator & Black Lead Of Simulator Lead L To Floor Wire Harness 2P Connector
    G00491903Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Measure the resistance between right side impact sensor (second) 2P connector on the floor wire harness terminals No. 1 and No. 2.

    Is there less than 1.0Ω.? 

    YES  - Faulty right side impact sensor (second) or SRS unit; replace the right side impact sensor (second) (see SIDE IMPACT SENSOR (SECOND) REPLACEMENT  ), then clear the DTC. If the problem is still present, replace the SRS unit (see SRS UNIT REPLACEMENT  ). If the DTC is still present; replace the faulty floor wire harness.

    NO  - Open in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

    Fig 6: Measuring Resistance Between Floor Wire Harness 2P Connector Terminals No. 1 & No. 2
    G05960541Courtesy of AMERICAN HONDA MOTOR CO., INC.