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Home >> Infiniti >> 2021 >> Q60 Pure, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Diagnostics) >> Symptom Diagnosis >> Direct Adaptive Steering >> System Is Not Displayed On Consult >> Diagnosis Procedure >> Direct Adaptive Steering System

Direct Adaptive Steering System

"DAST 1", "DAST 2" or "EPS/DAST 3" is not displayed on CONSULT.

Self-diagnostic result or System condition

Detected DTC or system condition

Possible cause

Reference

DAST 1

DAST 2

EPS/DAST 3

System is not displayed on CONSULT

System is not displayed on CONSULT

System is not displayed on CONSULT
  • 12V battery power supply circuit
  • Ignition power supply circuit
  • Power supply circuit for steering force control module
  • Steering force control module harness connector

TYPE 1

System is not displayed on CONSULT

C13BE-00, C13C0-00 or C13C2-00

C13BE-00, C13C0-00 or C13C2-00
  • FlexRay communication line
  • Steering angle main control module

TYPE 2

System is not displayed on CONSULT

System is not displayed on CONSULT

C13C1-00 and C13C4-00
  • FlexRay communication line
  • Steering force control module
  • Steering angle main control module
  • Steering angle sub control module

TYPE 3

C13C0-00, C13C2-00 or System is not displayed on CONSULT

System is not displayed on CONSULT

C13BE-00, C13C0-00 or C13C3-00
  • FlexRay communication line
  • Steering angle sub control module

TYPE 4

System is not displayed on CONSULT

C13C0-00 and C13C2-00

C13C0-00 and C13C2-00
  • Power supply circuit for steering angle main control module
  • Steering angle main control module harness connector
  • Ignition power supply circuit (between steering angle main control module and steering angle sub control module)

TYPE 5

System is not displayed on CONSULT

System is not displayed on CONSULT

C13C0-00, C13C2-00 and C13C3-00
  • Ignition power supply circuit (between steering force control module and steering angle sub control module)
  • Steering force control module
  • Steering angle sub control module

TYPE 6

C13C0-00 and C13C2-00

System is not displayed on CONSULT

C13C0-00 and C13C3-00
  • Steering angle sub control module harness connector

TYPE 7

System is not displayed on CONSULT

System is not displayed on CONSULT

C13BE-00, C13C1-00 or C13C4-00
  • FlexRay communication line
  • Steering force control module

TYPE 8

TYPE 1 

  1. CHECK STEERING FORCE CONTROL MODULE GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering force control module harness connector.
    3. Check the continuity between control module harness connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      M72

      33

      Ground

      Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair open circuit or short to ground or short to power in harness or connectors.

  2. CHECK STEERING FORCE CONTROL MODULE POWER SUPPLY CIRCUIT (1) 
    1. Turn the ignition switch OFF.
    2. Disconnect steering force control module harness connector.
    3. Check the voltage between steering force control module harness connector and ground.

      +

      --

      Voltage

      Steering force control module

      Connector

      Terminal

      M72

      34

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 3.

  3. CHECK STEERING FORCE CONTROL MODULE POWER SUPPLY CIRCUIT (2) 
    1. Check the 60A fusible link (#G). (With pre-crash seat belt system)
    2. Check the 60A fusible link (#I). (Without pre-crash seat belt system)
    3. Check the harness for open or short between steering force control module harness connector No. 34 terminal and the 60A fusible link (#G). (Without pre-crash seat belt system)
    4. Check the harness for open or short between steering force control module harness connector No. 34 terminal and the 60A fusible link (#I). (Without pre-crash seat belt system)

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for 12V battery power supply circuit.

    NO

    Repair or replace error-detected parts.

  4. CHECK INTERNAL CIRCUIT IN STEERING FORCE CONTROL MODULE 

    Check the continuity between steering force control module connector terminals.

    Steering force control module

    Continuity

    Terminal

    25

    27

    Existed

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Replace steering force control module. Refer to STEERING FORCE CONTROL MODULE : Removal & Installation .

  5. CHECK IGNITION POWER SUPPLY FOR STEERING FORCE CONTROL MODULE 
    1. Check the voltage between steering force control module harness connector and ground.

      +

      --

      Voltage

      Steering force control module

      Connector

      Terminal

      M71

      25

      Ground

      Approx. 0 V
    2. Turn the ignition switch ON.
    3. Check the voltage between force control module harness connector and ground.

      +

      --

      Voltage

      Steering force control module

      Connector

      Terminal

      M71

      25

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    • Check enlarged contact spring of terminal. Refer to Inspection .
    • Perform intermittent incident while turning steering wheel. Refer to Inspection .

    NO

    GO TO 6.

  6. CHECK IGNITION POWER SUPPLY CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Check the 10A fuse (#12).
    3. Disconnect fuse block (J/B) harness connector.
    4. Check the continuity between steering force control module connector and fuse block (J/B).

      Steering force control module

      Fuse block (J/B)

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      25

      M133

      20C

      Existed
    5. Check the continuity between steering force control module connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      M71

      25

      Ground

      Not existed

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for ignition power supply circuit.

    NO

    Repair or replace error-detected parts.

TYPE 2 

  1. CHECK FLEXRAY COMMUNICATION CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect each control module harness connector.
    3. Check the continuity between each control module harness connector.

      Steering angle main control module

      Steering angle sub control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E26

      19

      E29

      19

      Existed

      20

      20
    4. Check the continuity between control module harness connector and ground.

      Steering angle main control module

      --

      Continuity

      Connector

      Terminal

      E26

      19

      Ground

      Not existed

      20

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected part.

  2. CHECK INTERMITTENT INCIDENT 
    1. Check enlarged contact spring of terminal. Refer to Inspection .
    2. Perform intermittent incident while turning steering wheel. Refer to Inspection .

    Is the inspection result normal?

    YES

    Replace steering angle main control module. Refer to STEERING ANGLE MAIN CONTROL MODULE : Removal & Installation .

    NO

    Repair or replace error-detected part.

TYPE 3 

  1. CHECK FLEXRAY COMMUNICATION CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect each control module harness connector.
    3. Check the continuity between each control module harness connector.

      Steering angle main control module

      Steering angle sub control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E26

      19

      E29

      19

      Existed

      20

      20

      Steering force control module

      Steering angle main control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      19

      E26

      19

      Existed

      20

      20
    4. Check the continuity between control module harness connector and ground.

      Steering angle main control module

      --

      Continuity

      Connector

      Terminal

      E26

      19

      Ground

      Not existed

      20

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected part.

  2. CHECK INTERMITTENT INCIDENT 
    1. Check enlarged contact spring of terminal. Refer to Inspection .
    2. Perform intermittent incident while turning steering wheel. Refer to Inspection .

    Is the inspection result normal?

    YES

    Replace following control module.

    NO

    Repair or replace error-detected part.

TYPE 4 

  1. CHECK FLEXRAY COMMUNICATION CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect each control module harness connector.
    3. Check the continuity between each control module harness connector.

      Steering angle sub control module

      Steering angle main control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E29

      19

      E26

      19

      Existed

      20

      20
    4. Check the continuity between control module harness connector and ground.

      Steering angle sub control module

      --

      Continuity

      Connector

      Terminal

      E29

      19

      Ground

      Not existed

      20

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected part.

  2. CHECK INTERMITTENT INCIDENT 
    1. Check enlarged contact spring of terminal. Refer to Inspection .
    2. Perform intermittent incident while turning steering wheel. Refer to Inspection .

    Is the inspection result normal?

    YES

    Replace steering angle sub control module. Refer to STEERING ANGLE SUB CONTROL MODULE : Removal & Installation .

    NO

    Repair or replace error-detected part.

TYPE 5 

  1. CHECK STEERING ANGLE MAIN CONTROL MODULE GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle main control module harness connector.
    3. Check the continuity between control module harness connector and ground.

      Steering angle main control module

      --

      Continuity

      Connector

      Terminal

      E27

      33

      Ground

      Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair open circuit or short to ground or short to power in harness or connectors.

  2. CHECK STEERING ANGLE MAIN CONTROL MODULE POWER SUPPLY CIRCUIT (1) 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle main control module harness connector.
    3. Check the voltage between steering angle main control module harness connector and ground.

      +

      --

      Voltage

      Steering angle main control module

      Connector

      Terminal

      E27

      34

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 3.

  3. CHECK STEERING ANGLE MAIN CONTROL MODULE POWER SUPPLY CIRCUIT (2) 
    1. Check the 100A fusible link (#J).
    2. Check the harness for open or short between steering angle main control module harness connector No. 34 terminal and the 100A fusible link (#J).

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for 12V battery power supply circuit.

    NO

    Repair or replace error-detected parts.

  4. CHECK IGNITION POWER SUPPLY FOR STEERING ANGLE MAIN CONTROL MODULE 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle main control module harness connector.
    3. Check the voltage between steering angle main control module harness connector and ground.

      +

      --

      Voltage

      Steering angle main control module

      Connector

      Terminal

      E26

      25

      Ground

      Approx. 0 V
    4. Turn the ignition switch ON.
    5. Check the voltage between steering angle control module harness connector and ground.

      +

      --

      Voltage

      Steering angle main control module

      Connector

      Terminal

      E26

      25

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    • Check enlarged contact spring of terminal. Refer to Inspection .
    • Perform intermittent incident while turning steering wheel. Refer to Inspection .

    NO

    GO TO 5.

  5. CHECK IGNITION POWER SUPPLY CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle sub control module harness connector.
    3. Check the continuity between steering angle main control module harness connector and steering angle sub control module harness connector.

      Steering angle main control module

      Steering angle sub control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E26

      25

      E29

      27

      Existed

    Is the inspection result normal?

    YES

    Check the ignition power supply circuit for steering force control module and steering angle sub control module.

    NO

    Repair or replace error-detected parts.

TYPE 6 

  1. CHECK INTERNAL CIRCUIT IN STEERING ANGLE SUB CONTROL MODULE 

    Check the continuity between steering angle sub control module connector terminals.

    Steering angle sub control module

    Continuity

    Terminal

    25

    27

    Existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Replace steering angle sub control module. Refer to STEERING ANGLE SUB CONTROL MODULE : Removal & Installation .

  2. CHECK IGNITION POWER SUPPLY FOR STEERING ANGLE SUB CONTROL MODULE 
    1. Check the voltage between steering angle sub control module harness connector and ground.

      +

      --

      Voltage

      Steering angle sub control module

      Connector

      Terminal

      E29

      25

      Ground

      Approx. 0 V
    2. Turn the ignition switch ON.
    3. Check the voltage between steering angle control module harness connector and ground.

      +

      --

      Voltage

      Steering angle sub control module

      Connector

      Terminal

      E29

      25

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 4.

  3. CHECK INTERMITTENT INCIDENT 
    1. Turn the ignition switch OFF.
    2. Check enlarged contact spring of terminal. Refer to Inspection .
    3. Perform intermittent incident while turning steering wheel. Refer to Inspection .

    Is the inspection result normal?

    YES

    Replace following control module.

    NO

    Repair or replace error-detected part.

  4. CHECK IGNITION POWER SUPPLY CIRCUIT (2) 
    1. Turn the ignition switch OFF.
    2. Disconnect steering force control module harness connector.
    3. Check the continuity between steering angle sub control module harness connector and steering force control module harness connector.

      Steering angle sub control module

      Steering force control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E29

      25

      M71

      27

      Existed

    Is the inspection result normal?

    YES

    Check the ignition power supply circuit for steering force control module.

    NO

    Repair or replace error-detected parts.

TYPE 7 

  1. CHECK STEERING ANGLE SUB CONTROL MODULE GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle sub control module harness connector.
    3. Check the continuity between control module harness connector and ground.

      Steering angle sub control module

      --

      Continuity

      Connector

      Terminal

      E30

      33

      Ground

      Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair open circuit or short to ground or short to power in harness or connectors.

  2. CHECK STEERING ANGLE SUB CONTROL MODULE POWER SUPPLY CIRCUIT (1) 
    1. Turn the ignition switch OFF.
    2. Disconnect steering angle sub control module harness connector.
    3. Check the voltage between steering angle sub control module harness connector and ground.

      +

      --

      Voltage

      Steering angle sub control module

      Connector

      Terminal

      E30

      34

      Ground

      10.5 - 16.0 V

    Is the inspection result normal?

    YES

    • Check enlarged contact spring of terminal. Refer to Inspection .
    • Perform intermittent incident while turning steering wheel. Refer to Inspection .

    NO

    GO TO 3.

  3. CHECK STEERING ANGLE SUB CONTROL MODULE POWER SUPPLY CIRCUIT (2) 
    1. Check the 100A fusible link (#H). (With pre-crash seat belt system)
    2. Check the 100A fusible link (#K). (Without pre-crash seat belt system)
    3. Check the harness for open or short between steering angle sub control module harness connector No. 34 terminal and the 100A fusible link (#H). (With pre-crash seat belt system)
    4. Check the harness for open or short between steering angle sub control module harness connector No. 34 terminal and the 100A fusible link (#K). (Without pre-crash seat belt system)

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for 12V battery power supply circuit.

    NO

    Repair or replace error-detected parts.

TYPE 8 

  1. CHECK FLEXRAY COMMUNICATION CIRCUIT 
    1. Disconnect each control module harness connector.
    2. Check the continuity between each control module harness connector.

      Steering force control module

      Steering angle main control module

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      19

      E26

      19

      Existed

      20

      20
    3. Check the continuity between control module harness connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      M71

      19

      Ground

      Not existed

      20

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected part.

  2. CHECK INTERMITTENT INCIDENT 
    1. Check enlarged contact spring of terminal. Refer to Inspection .
    2. Perform intermittent incident while turning steering wheel. Refer to Inspection .

    Is the inspection result normal?

    YES

    Replace steering force control module. Refer to STEERING FORCE CONTROL MODULE : Removal & Installation .

    NO

    Repair or replace error-detected part.

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