Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: C18f3-4b Overheat

Nissan Rogue (T33) 2021-Present Service Manual / Brakes :: Brake System / Dtc/circuit Diagnosis :: C18f3-4b Overheat

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC detection condition
C18F3 4B Overheat Diagnosis condition When Ignition switch is ON.
Signal (terminal) —
Threshold When the control module temperature is 142℃ (287.6℉) or more after 6.5 seconds at 123℃ (253.4℉) or more.
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

Electrically-driven Intelligent Brake Unit

FAIL-SAFE

The following functions are suspended.

  • Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always Ignition switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

CONSULT

  1. Ignition switch OFF to ON without depressing the brake pedal.

  2. Ignition switch OFF and disconnect CONSULT from data link connector.

  3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  4. Ignition switch ON without depressing the brake pedal.

  5. Erase self-diagnosis result for “BRAKE”.

  6. Ignition switch OFF and disconnect CONSULT from data link connector.

  7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  8. Ignition switch ON without depressing the brake pedal.

  9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F3-4B" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK 12V BATTERY

  1. Ignition switch OFF and disconnect CONSULT from data link connector.

  2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  3. Check the 12V battery terminal connections.

  4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

CONSULT

  1. Connect 12V battery cable to negative terminal.

  2. Ignition switch OFF to ON without depressing the brake pedal.

  3. Ignition switch OFF and disconnect CONSULT from data link connector.

  4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  5. Ignition switch OFF to ON without depressing the brake pedal.

  6. Erase self-diagnosis result for “BRAKE”.

  7. Ignition switch OFF and disconnect CONSULT from data link connector.

  8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  9. Ignition switch OFF to ON without depressing the brake pedal.

  10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 3.

NO>>

Inspection End.

CHECK CONNECTOR TERMINALS

  1. Ignition switch OFF and disconnect CONSULT from data link connector.

  2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  3. Disconnect 12V battery cable from negative terminal.

  4. Disconnect Electrically-driven Intelligent Brake Unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

CONSULT

  1. Connect Electrically-driven Intelligent Brake Unit harness connector.

  2. Connect 12V battery cable to negative terminal.

  3. Ignition switch OFF to ON without depressing the brake pedal.

  4. Ignition switch OFF and disconnect CONSULT from data link connector.

  5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  6. Ignition switch OFF to ON without depressing the brake pedal.

  7. Erase self-diagnosis result for “BRAKE”.

  8. Ignition switch OFF and disconnect CONSULT from data link connector.

  9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  10. Ignition switch OFF to ON without depressing the brake pedal.

  11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 5.

NO>>

Inspection End.

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

  1. Ignition switch OFF and disconnect CONSULT from data link connector.

  2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  3. Disconnect 12V battery cable from negative terminal.

  4. Disconnect Electrically-driven Intelligent Brake Unit harness connector.

  5. Check the Electrically-driven Intelligent Brake Unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

CONSULT

  1. Ignition switch OFF to ON without depressing the brake pedal.

  2. Ignition switch OFF and disconnect CONSULT from data link connector.

  3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  4. Ignition switch OFF to ON without depressing the brake pedal.

  5. Erase self-diagnosis result for “BRAKE”.

  6. Ignition switch OFF and disconnect CONSULT from data link connector.

  7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  8. Ignition switch OFF to ON without depressing the brake pedal.

  9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 7.

NO>>

Inspection End.

CHECK DATA MONITOR

CONSULT

  1. Ignition switch OFF to ON without depressing the brake pedal.

  2. Select “BRAKE”, “Data monitor” according this order.

  3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the Electrically-driven Intelligent Brake Unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the Electrically-driven Intelligent Brake Unit. Refer to Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

CONSULT

  1. Ignition switch OFF to ON without depressing the brake pedal.

  2. Ignition switch OFF and disconnect CONSULT from data link connector.

  3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  4. Ignition switch OFF to ON without depressing the brake pedal.

  5. Erase self-diagnosis result for “BRAKE”.

  6. Ignition switch OFF and disconnect CONSULT from data link connector.

  7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  8. Ignition switch OFF to ON without depressing the brake pedal.

  9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

Replace the Electrically-driven Intelligent Brake Unit. Refer to Removal & Installation.

NO>>

Inspection End.

    Dtc/circuit Diagnosis. C18f3-04 Overheat
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition C18F3 04 Overheat Diagnosis condition When Ignition switch is ON. Signal (terminal) — ...
    Dtc/circuit Diagnosis. C18f4-86 Bcm System
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition C18F4 86 BCM communication 1 Diagnosis condition When Ignition switch is ON. Signal (ter...

    Other materials:

    Dtc/circuit Diagnosis. B0010-11 Assist A/b Module
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition B0010-11 ASSIST A/B MODULE (Passenger Frontal Stage 1 Deployment Control) Diagnosis condition When ignition switch is ON. Signal (terminal) Passenger air ba ...

    Electric Wastegate Control Actuator
    Component Inspection INSPECTION START Do you have CONSULT? Do you have CONSULT? YES>> GO TO 2. NO>> GO TO 3. CHECK ELECTRIC WASTEGATE CONTROL ACTUATOR With CONSULT Turn ignition switch ON and engine stopped. On the CONSULT screen, select “ENGINE”>>“ACTIVE ...

    Door Lock Function
    System Description SYSTEM DIAGRAMDoor lock function controls operation function of the following items. Door lock and unlock function (door request switch) Selective unlock function (door request switch) Reminder function (door request switch) Auto door lock function (door request ...