Diagnostic Test

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
Is the inspection result normal?

YES

GO TO STEP 3 .

NO

Repair / replace harness or connector, securely lock the connector, and GO TO STEP 2 .

PERFORM SELF-DIAGNOSIS

With CONSULT
1. Turn the ignition switch OFF → ON, and wait 30 seconds.
2. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
  NOTE:
  Vehicle must be driven after repair or replacement to erase the previous DTCs.
3. Stop the vehicle.
4. Turn the ignition switch OFF.
  NOTE:
  Wait at least 10 seconds after turning ignition switch OFF.
5. Set the vehicle to READY/Start the engine.
  NOTE:
  Wait at least 10 seconds after set the vehicle to READY/start the engine.
6. Repeat step 4 to 5 two or more times.
7. Perform self-diagnosis for "ABS".
Is DTC "C1111" detected?

YES

GO TO STEP 3 .

NO

INSPECTION END

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 circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES

GO TO STEP 5 .

NO

Repair / replace harness, connector, or fuse, and GO TO STEP 4 .

ERASE SELF-DIAGNOSIS RESULT (1)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
  NOTE:
  Vehicle must be driven after repair or replacement to erase the previous DTCs.
2. Stop the vehicle.
3. Erase self-diagnosis result for "ABS".
4. Turn the ignition switch OFF → ON → OFF.
  NOTE:
  Wait at least 10 seconds after turning ignition switch OFF or ON.
INSPECTION END

CHECK TERMINAL
1. Turn the ignition switch OFF.
2. Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

Replace the ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .

NO

Repair / replace harness or connector, and GO TO STEP 6 .

ERASE SELF-DIAGNOSIS RESULT (2)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
  NOTE:
  Vehicle must be driven after repair or replacement to erase the previous DTCs.
2. Stop the vehicle.
3. Erase self-diagnosis result for "ABS".
4. Turn the ignition switch OFF → ON → OFF.
  NOTE:
  Wait at least 10 seconds after turning ignition switch OFF or ON.
INSPECTION END