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Nissan Sentra B18 (2020-2025) Service Manual: Dtc/circuit Diagnosis

C1b80-54 Control Module

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

C1B80

54

Calibration not completed

(Calibration not completed)

[MISSING CALIBRATION]

(Missing calibration)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

-

Threshold

When programming is not complete.

Diagnosis delay time

1 second or less

POSSIBLE CAUSE

  • Incomplete programing of chassis control module (with built in steering angle sensor)

  • Chassis control module (with built in steering angle sensor)

FAIL-SAFE

The following functions are suspended.

  • Intelligent trace control function

  • Intelligent engine brake function

  • Active ride control function

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If “Confirmation Procedure” has been previously conducted, always turn the ignition switch OFF and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. CHECK DTC DETECTION

    With CONSULT

    1. Turn the ignition switch OFF to ON.

      CAUTION:

      Be sure to wait of 10 seconds after turning ignition switch OFF or ON.

    2. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1B80-54” 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

DTC Diagnosis Procedure

  1. PERFORM SELF-DIAGNOSIS

    With CONSULT

    1. Erase self-diagnosis result for “CHASSIS CONTROL”.

    2. Turn the ignition switch OFF and wait for 10 seconds or more.

    3. Turn the ignition switch ON.

    4. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1B80-54” detected?

    YES >>

    Perform programming. Refer to Work Procedure.

    NO >>

    INSPECTION END

C1b92-82 Brake Control System

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

C1B92

82

BRAKE CONTROL SYSTEM

(Brake control system)

SEQUENCE COUNTER INCORRECT

(Sequence counter incorrect)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

CAN communication signal

Threshold

ABS actuator and electric unit (control unit) is malfunctioning.

Diagnosis delay time

1 second or less

POSSIBLE CAUSE

ABS actuator and electric unit (control unit)

FAIL-SAFE

The following functions are suspended.

  • Intelligent trace control function

  • Active ride control function

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If “Confirmation Procedure” has been previously conducted, always turn the ignition switch OFF and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. CHECK DTC DETECTION

    With CONSULT

    1. Turn the ignition switch OFF to ON.

      CAUTION:

      Be sure to wait of 10 seconds after turning ignition switch OFF or ON.

    2. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1B92-82” detected?

    YES-1 >>

    "CRNT" is displayed: Refer to DTC Diagnosis Procedure.

    YES-2 >>

    "PAST" is displayed: INSPECTION END (Erase the memory of self-diagnosis results.)

    NO-1 >>

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

    NO-2 >>

    Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

    With CONSULT

    Perform self-diagnosis for “ABS”.

    Is DTC detected?

    YES >>

    Check the DTC. Refer to DTC Index.

    NO >>

    GO TO 2.

  2. ERASE SELF-DIAGNOSIS RESULT

    With CONSULT

    1. Erase self-diagnosis result for “CHASSIS CONTROL”.

    2. Turn the ignition switch OFF and wait for 10 seconds or more.

    >>

    INSPECTION END

C1bb5-1c Ignition Power Supply

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

C1BB5

1C

IGN POWER SUPPLY

(Ignition power supply)

[CIRC VOLTAGE OUT OF RANGE]

(Circuit voltage out of range)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

Ignition power supply

Threshold

Less than 6.4 V.

Diagnosis delay time

1 second or less

POSSIBLE CAUSE

  • Harness or connector

  • Ignition power supply system

  • Fuse

  • 12V battery

  • Chassis control module (with built in steering angle sensor)

FAIL-SAFE

The following functions are suspended.

  • Intelligent trace control function

  • Intelligent engine brake function

  • Active ride control function

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If “Confirmation Procedure” has been previously conducted, always turn the ignition switch OFF and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. CHECK DTC DETECTION

    With CONSULT

    1. Turn the ignition switch OFF to ON.

      CAUTION:

      Be sure to wait of 10 seconds after turning ignition switch OFF or ON.

    2. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1BB5-1C” 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

DTC Diagnosis Procedure

  1. CHECK CONNECTOR

    1. Turn the ignition switch OFF.

    2. Disconnect the chassis control module (with built in steering angle sensor) harness connector.

    3. Check the connector for disconnection or looseness.

    4. Check the terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

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

  2. PERFORM SELF-DIAGNOSIS (1)

    With CONSULT

    1. Connect the chassis control module (with built in steering angle sensor) harness connector.

    2. Erase self-diagnosis result for “CHASSIS CONTROL”.

    3. Turn the ignition switch OFF and wait for 10 seconds or more.

    4. Turn the ignition switch ON.

    5. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1BB5-1C” detected?

    YES >>

    GO TO 3.

    NO >>

    INSPECTION END

  3. CHECK CHASSIS CONTROL MODULE (WITH BUILT IN STEERING ANGLE SENSOR) IGNITION POWER SUPPLY

    Check the chassis control module (with built in steering angle sensor) ignition power supply. Refer to Diagnosis Procedure.

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair/replace harness, connector, terminal or fuse.

  4. PERFORM SELF-DIAGNOSIS (2)

    With CONSULT

    1. Connect the chassis control module (with built in steering angle sensor) harness connector.

    2. Erase self-diagnosis result for “CHASSIS CONTROL”.

    3. Turn the ignition switch OFF and wait for 10 seconds or more.

    4. Turn the ignition switch ON.

    5. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “C1BB5-1C” detected?

    YES >>

    Replace the chassis control module (with built in steering angle sensor). Refer to Removal and Installation.

    NO >>

    INSPECTION END

U0076-00 Can Comm Circuit

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U0076

00

Control module comm Bus D Off

(Control module comm Bus D Off)

[NO SUBTYPE INFORMATION]

(No subtype information)

1

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

CAN communication signal

Threshold

Not transmitting.

Diagnosis delay time

2 seconds or more

2

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

CAN communication signal

Threshold

Not receiving.

Diagnosis delay time

2 seconds or more

POSSIBLE CAUSE

  • CAN communication system

FAIL-SAFE

The following functions are suspended.

  • Intelligent trace control function

  • Intelligent engine brake function

  • Active ride control function

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If “Confirmation Procedure” has been previously conducted, always turn the ignition switch OFF and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. CHECK DTC DETECTION

    With CONSULT

    1. Turn the ignition switch OFF to ON.

      CAUTION:

      Be sure to wait of 10 seconds after turning ignition switch OFF or ON.

    2. Perform self-diagnosis for “CHASSIS CONTROL”.

    Is DTC “U0076-00” 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

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

Power Supply and Ground Circuit

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CHASSIS CONTROL MODULE (WITH BUILT IN STEERING ANGLE SENSOR) IGNITION POWER SUPPLY

    1. Turn the ignition switch OFF.

    2. Disconnect the chassis control module (with built in steering angle sensor) harness connector.

    3. Check the voltage between chassis control module (with built in steering angle sensor) harness connector and ground.

      +

      −

      Voltage

      Chassis control module (with built in steering angle sensor)

      Connector

      Terminal

      M14

      8

      Ground

      Approx. 0 V

    4. Turn the ignition switch ON.

    5. Check the voltage between chassis control module (with built in steering angle sensor) harness connector and ground.

      +

      −

      Voltage

      Chassis control module (with built in steering angle sensor)

      Connector

      Terminal

      M14

      8

      Ground

      6.4−16 V

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    GO TO 2.

  2. CHECK CHASSIS CONTROL MODULE (WITH BUILT IN STEERING ANGLE SENSOR) IGNITION POWER SUPPLY CIRCUIT

    1. Turn the ignition switch OFF.

    2. Check the 10A fuse (#50).

    3. Check the continuity and for short circuit between chassis control module (with built in steering angle sensor) harness connector terminal (8) and 10A fuse (#50).

    Is the inspection result normal?

    YES >>

    Perform trouble diagnosis for ignition power supply.

    NO >>

    Repair/replace harness, connector or fuse.

  3. CHECK CHASSIS CONTROL MODULE (WITH BUILT IN STEERING ANGLE SENSOR) SIGNAL GROUND CIRCUIT

    Check the continuity between chassis control module (with built in steering angle sensor) harness connector and the ground.

    Chassis control module (with built in steering angle sensor)

    —

    Continuity

    Connector

    Terminal

    M14

    5

    Ground

    Existed

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair / replace harness or connector.

  4. CHECK TERMINAL

    Check the chassis control module (with built in steering angle sensor) terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Repair/replace harness, connector, or terminal.

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