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Nissan Ariya: Dtc/circuit Diagnosis

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Driver Controls / Mirrors / Dtc/circuit Diagnosis

B2ccf-04 Passenger Door Mirror Control Module

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC detection condition
B2CCF-04 Passenger door mirror control module Diagnosis condition Power switch is ON or OFF (auto ACC status).
Signal (terminal) LIN communication (door mirror) signal
Threshold BCM detects communication error with passenger door mirror control module
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Passenger door mirror control module

  • LIN communication line

  • BCM

FAIL SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

  3. Check DTC.

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK LIN COMMUNICATION SIGNAL

  1. Power switch ON.

  2. Check signal between passenger door mirror control module harness connector and ground using an oscilloscope.

    (+) (−)

    Signal

    (Reference value)
    Passenger door mirror control module
    Connector Terminal
    D8 7 Ground

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE CIRCUIT

  1. Power switch OFF.

  2. Disconnect passenger door mirror control module connector and BCM connector.

  3. Check continuity between passenger door mirror control module harness connector and BCM harness connector.

    Passenger door mirror control module BCM Continuity
    Connector Terminal Connector Terminal
    D8 7 M8 24 Existed

  4. Check continuity between passenger door mirror control module harness connector and ground.

    Passenger door mirror control module — Continuity
    Connector Terminal
    D8 7 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

REPLACE PASSENGER DOOR MIRROR CONTROL MODULE

Replace passenger door mirror control module. Refer to Removal & Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 4.

REPLACE BCM

Replace BCM. Refer to Removal and Installation.

>>

INSPECTION END

B2ccf-95 Passenger Door Mirror Control Module

DTC Description

NOTE:

When the power switch is turned ON, the DTC may be detected. If it has been detected due to previous error/operation, erase the history once and check if the DTC is detected again.

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC detection condition
B2CCF-95 Passenger door mirror control module Diagnosis condition Power switch is ON or OFF (auto ACC status).
Signal (terminal) LIN communication signal
Threshold BCM cannot LIN communication with passenger door mirror control module
Diagnosis delay time 2 second or less

POSSIBLE CAUSE

  • LIN communication line

  • Passenger door mirror control module

  • BCM

FAIL SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK DTC PRIORITY

When DTC "B2CCF-95" is displayed together with DTC "B2CCF-04", perform the diagnosis of DTC "B2CCF-04" first.

Is applicable DTC detected?

YES>>

Refer to DTC Description.

NO>>

GO TO 2.

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON.

  2. Perform “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES-1>>

CRNT: Refer to Diagnosis Procedure.

YES-2>>

PAST: GO TO 3.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

CHECK OPERATION

Check that door mirror (passenger side) operate properly.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK DTC PRIORITY

When DTC "B2CCF-95" is displayed together with DTC "B2CCF-04", perform the diagnosis of DTC "B2CCF-04" first.

Is applicable DTC detected?

YES>>

Refer to DTC Description.

NO>>

GO TO 2.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT

Check passenger door mirror control module power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

CHECK LIN COMMUNICATION CIRCUIT

Check LIN communication circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace passenger door mirror control module. Refer to Removal & Installation.

NO>>

Repair or replace the malfunctioning parts.

Intelligent Rear View Mirror

Diagnosis Procedure

CHECK INTELLIGENT REAR VIEW MIRROR CIRCUIT

  1. Power switch OFF.

  2. Replace between intelligent rear view mirror harness connector and intelligent rear view mirror camera harness connector.

  3. Power switch ON.

  4. Turn power supply lever of intelligent rear view mirror lower part to ON and check whether the intelligent rear view mirror camera image is reflected to intelligent rear view mirror in built LCD monitor.

Is the inspection result normal?

YES>>

Replace between intelligent rear view mirror harness connector and intelligent rear view mirror camera harness connector.

NO>>

GO TO 2.

CHECK INTELLIGENT REAR VIEW MIRROR CAMERA

  1. Power switch OFF.

  2. Replace intelligent rear view mirror camera. Refer to Removal & Installation.

  3. Power switch ON.

  4. Turn power supply lever of intelligent rear view mirror lower part to ON and check whether the intelligent rear view mirror camera image is reflected to intelligent rear view mirror in built LCD monitor.

Is the inspection result normal?

YES>>

Replace intelligent rear view mirror camera. Refer to Removal & Installation.

NO>>

GO TO 3.

CHECK INTELLIGENT REAR VIEW MIRROR

  1. Power switch OFF.

  2. Replace intelligent rear view mirror. Refer to Removal & Installation.

  3. Power switch ON.

  4. Turn power supply lever of intelligent rear view mirror lower part to ON and check whether the intelligent rear view mirror camera image is reflected to intelligent rear view mirror in built LCD monitor.

Is the inspection result normal?

YES>>

Replace intelligent rear view mirror. Refer to Removal & Installation.

NO>>

Check intermittent incident. Refer to Intermittent Incident..

Power Window Main Switch

Diagnosis Procedure

CHECK POWER WINDOW MAIN SWITCH CIRCUIT

  1. Power switch OFF.

  2. Disconnect power window main switch connector and door mirror (driver side) connector.

  3. Check continuity between power window main switch harness connector and door mirror (driver side) harness connector.

    Power window main switch Door mirror (driver side) Continuity
    Connector Terminal Connector Terminal
    D63 10 D64 7 Existed
    2 15
    8 14
    14 16
    21 6
    7 13
    6 8
    17 5
    18 4

  4. Check continuity between power window main switch harness connector and ground.

    Power window main switch — Continuity
    Connector Terminal
    D63 10 Ground Not existed
    2
    8
    14
    21
    7
    6
    17
    18

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness.

REPLACE DOOR MIRROR (DRIVER SIDE)

Replace door mirror (driver side). Refer to Removal & Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 3.

REPLACE POWER WINDOW MAIN SWITCH

Replace power window main switch. Refer to Removal and Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 4.

REPLACE BCM

Replace BCM. Refer to Removal and Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 5.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Passenger Door Mirror Control Module

Diagnosis Procedure

CHECK FUSE

  1. Power switch OFF.

  2. Check that the following fuse is not blown (open).

Fuse No. Capacity
#48 5A

Is the fuse blown (open) ?

YES>>

Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).

NO>>

GO TO 2.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE POWER SUPPLY

  1. Disconnect passenger door mirror control module connector.

  2. Power switch ON.

  3. Check voltage between passenger door mirror control module harness connector and ground.

    (+) (−)

    Voltage (V)

    (Approx.)
    Passenger door mirror control module
    Connector Terminal
    D8 4 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness and check fuse.

CHECK LIN COMMUNICATION SIGNAL

  1. Power switch OFF.

  2. Connect passenger door mirror control module connector.

  3. Power switch ON.

  4. Check signal between passenger door mirror control module harness connector and ground using an oscilloscope.

    (+) (−)

    Signal

    (Reference value)
    Passenger door mirror control module
    Connector Terminal
    D8 7 Ground

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE CIRCUIT

  1. Power switch OFF.

  2. Disconnect passenger door mirror control module connector and BCM connector.

  3. Check continuity between passenger door mirror control module harness connector and BCM harness connector.

    Passenger door mirror control module BCM Continuity
    Connector Terminal Connector Terminal
    D48 7 M8 24 Existed

  4. Check continuity between passenger door mirror control module harness connector and ground.

    Passenger door mirror control module — Continuity
    Connector Terminal
    D48 7 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE CIRCUIT

  1. Power switch OFF.

  2. Disconnect passenger door mirror control module and door mirror (passenger side) connector.

  3. Check continuity between passenger door mirror control module harness connector and door mirror (passenger side) harness connector.

    Passenger door mirror control module Door mirror (passenger side) Continuity
    Connector Terminal Connector Terminal
    D8 11 D24 7 Existed
    6 15
    1 14
    5 16
    10 6
    2 13
    3 8
    9 5
    8 4

  4. Check continuity between passenger door mirror control module harness connector and ground.

    Passenger door mirror control module — Continuity
    Connector Terminal
    D8 11 Ground Not existed
    6
    1
    5
    10
    2
    3
    9
    8

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness.

CHECK PASSENGER DOOR MIRROR CONTROL MODULE GROUND CIRCUIT

Check continuity between passenger door mirror control module harness connector and ground.

Passenger door mirror control module — Continuity
Connector Terminal
D8 12 Ground Existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace harness.

REPLACE DOOR MIRROR (PASSENGER SIDE)

Replace door mirror (passenger side). Refer to Disassembly & Assembly.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 8.

REPLACE PASSENGER DOOR MIRROR CONTROL MODULE

Replace passenger door mirror control module. Refer to Removal & Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 9.

REPLACE BCM

Replace BCM. Refer to Removal and Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 10.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Mirror Motor

Component Function Check

CHECK DOOR MIRROR RETRACT FUNCTION

  1. Power switch ON.

  2. Operate changeover switch, and then operate mirror switch. Check that door mirror operates normally.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL

  1. Power switch ON.

  2. Check voltage between power window main switch harness connector and ground.

    (+) (–) Condition

    Voltage

    (Approx.)
    Power window main switch
    Connector Terminal Changeover switch Mirror switch
    D63 21 Ground LEFT DOWN or RIGHT 9 ‐ 16 V
    Other than above 0 ‐ 1 V
    10 LEFT 9 ‐ 16 V
    Other than above 0 ‐ 1 V
    6 UP 9 ‐ 16 V
    Other than above 0 ‐ 1 V
    7 RIGHT DOWN or RIGHT 9 ‐ 16 V
    Other than above 0 ‐ 1 V
    9 LEFT 9 ‐ 16 V
    Other than above 0 ‐ 1 V
    8 UP 9 ‐ 16 V
    Other than above 0 ‐ 1 V

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

CHECK MIRROR MOTOR AND FOLDING MOTOR CIRCUIT

  1. Power switch OFF.

  2. Disconnect door mirror and power window main switch connector.

  3. Check continuity between door mirror harness connector and power window main switch harness connector.

    Door mirror Power window main switch Continuity
    Connector Terminal Connector Terminal
    Driver side D64 6 D63 21 Existed
    7 10
    8 6
    5 17
    4 18
    Passenger side D24 6 7
    7 9
    8 8
    5 20
    4 19

  4. Check continuity between power window main switch harness connector and ground.

    Power window main switch — Continuity
    Connector Terminal
    D63 21 Ground Not existed
    10
    6
    17
    18
    7
    9
    8
    20
    19

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

REPLACE POWER WINDOW MAIN SWITCH

Replace power window main switch. Refer to Removal and Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 4.

REPLACE DOOR MIRROR

Replace door mirror. Refer to Removal & Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Check intermittent incident. Refer to Intermittent Incident.

Lin Communication Circuit

Diagnosis Procedure

CHECK BCM OUTPUT SIGNAL

  1. Power switch ON.

  2. Check signal between BCM harness connector and ground using an oscilloscope.

    (+) (−) Signal
    BCM
    Connector Terminal
    M8 24 Ground

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK LIN COMMUNICATION CIRCUIT

  1. Power switch OFF, and then wait for 1 minutes with driver door open.

    NOTE:

    • Even after power switch OFF, power is supplied to accessories for a certain amount of time by the AUTO ACC function.

    • When Nissan Ariya vehicle is operated while on standby, power may be supplied to accessories.

  2. Disconnect following connectors.

    • BCM

    • Power window main switch

    • Front power window motor (driver side)

    • Front power window motor (passenger side)

    • Rear power window motor RH

    • Rear power window motor LH

    • Sunroof motor assembly

    • Sunshade motor assembly

    • Passenger door mirror control module

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    M8 24 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK LIN COMMUNICATION SIGNAL

  1. Power switch OFF, and then wait for 1 minutes with driver door open.

    NOTE:

    • Even after power switch OFF, power is supplied to accessories for a certain amount of time by the AUTO ACC function.

    • When Nissan Ariya vehicle is operated while on standby, power may be supplied to accessories.

  2. Disconnect following connectors.

    • Power window main switch

    • Front power window motor (driver side)

    • Front power window motor (passenger side)

    • Rear power window motor RH

    • Rear power window motor LH

    • Sunroof motor assembly

    • Sunshade motor assembly

    • Passenger door mirror control module

  3. Power switch ON.

  4. Check signal between passenger door mirror control module and ground using an oscilloscope.

    (+) (−) Signal
    Passenger door mirror control module
    Connector Terminal
    D8 7 Ground

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 4.

CHECK LIN COMMUNICATION CIRCUIT

  1. Power switch OFF.

  2. Disconnect BCM connector.

  3. Check continuity between BCM harness connector and passenger door mirror control module harness connector.

    BCM passenger door mirror control module Continuity
    Connector Terminal Connector Terminal
    M8 24 D8 7 Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair or replace harness.

 
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Nissan Ariya (FE0) 2023-2025 Service & Repair Manual

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